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| | | <link:roleType id="LeasesTables" roleURI="http://www.ecovyst.com/role/LeasesTables"> |
| <link:definition> 9954481 - Disclosure - Leases (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ReportableSegmentsTables" roleURI="http://www.ecovyst.com/role/ReportableSegmentsTables"> |
| <link:definition> 9954482 - Disclosure - Reportable Segments (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="GoodwillandOtherIntangibleAssetsTables" roleURI="http://www.ecovyst.com/role/GoodwillandOtherIntangibleAssetsTables"> |
| <link:definition> 9954483 - Disclosure - Goodwill and Other Intangible Assets (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="AccruedLiabilitiesAccruedLiabilitiesTables" roleURI="http://www.ecovyst.com/role/AccruedLiabilitiesAccruedLiabilitiesTables"> |
| <link:definition> 9954484 - Disclosure - Accrued Liabilities Accrued Liabilities (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="LongtermDebtTables" roleURI="http://www.ecovyst.com/role/LongtermDebtTables"> |
| <link:definition> 9954485 - Disclosure - Long-term Debt (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="OtherLongtermLiabilitiesOtherLongtermLiabilitiesTables" roleURI="http://www.ecovyst.com/role/OtherLongtermLiabilitiesOtherLongtermLiabilitiesTables"> |
| <link:definition> 9954486 - Disclosure - Other Long-term Liabilities Other Long-term Liabilities (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="FinancialInstrumentsTables" roleURI="http://www.ecovyst.com/role/FinancialInstrumentsTables"> |
| <link:definition> 9954487 - Disclosure - Financial Instruments (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="IncomeTaxesTables" roleURI="http://www.ecovyst.com/role/IncomeTaxesTables"> |
| <link:definition> 9954488 - Disclosure - Income Taxes (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="BenefitPlansTables" roleURI="http://www.ecovyst.com/role/BenefitPlansTables"> |
| <link:definition> 9954489 - Disclosure - Benefit Plans (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="StockBasedCompensationTables" roleURI="http://www.ecovyst.com/role/StockBasedCompensationTables"> |
| <link:definition> 9954490 - Disclosure - Stock-Based Compensation - (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="EarningsperShareTables" roleURI="http://www.ecovyst.com/role/EarningsperShareTables"> |
| <link:definition> 9954491 - Disclosure - Earnings per Share (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="SupplementalCashFlowInformationTables" roleURI="http://www.ecovyst.com/role/SupplementalCashFlowInformationTables"> |
| <link:definition> 9954492 - Disclosure - Supplemental Cash Flow Information (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ScheduleICondensedFinancialInformationofParentTables" roleURI="http://www.ecovyst.com/role/ScheduleICondensedFinancialInformationofParentTables"> |
| <link:definition> 9954493 - Disclosure - Schedule I - Condensed Financial Information of Parent (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="BackgroundandBasisofPresentationDetails" roleURI="http://www.ecovyst.com/role/BackgroundandBasisofPresentationDetails"> |
| <link:definition> 9954494 - Disclosure - Background and Basis of Presentation (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="SummaryofSignificantAccountingPoliciesNarrativesDetails" roleURI="http://www.ecovyst.com/role/SummaryofSignificantAccountingPoliciesNarrativesDetails"> |
| <link:definition> 9954495 - Disclosure - Summary of Significant Accounting Policies - Narratives (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="SummaryofSignificantAccountingPoliciesCorrectionofanErrorDetails" roleURI="http://www.ecovyst.com/role/SummaryofSignificantAccountingPoliciesCorrectionofanErrorDetails"> |
| <link:definition> 9954496 - Disclosure - Summary of Significant Accounting Policies - Correction of an Error (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="DivestituresNarrativeDetails" roleURI="http://www.ecovyst.com/role/DivestituresNarrativeDetails"> |
| <link:definition> 9954497 - Disclosure - Divestitures - Narrative (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="DivestituresReconciliationofLossDetails" roleURI="http://www.ecovyst.com/role/DivestituresReconciliationofLossDetails"> |
| <link:definition> 9954498 - Disclosure - Divestitures - Reconciliation of Loss (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="DivestituresIncomeInformationDetails" roleURI="http://www.ecovyst.com/role/DivestituresIncomeInformationDetails"> |
| <link:definition> 9954499 - Disclosure - Divestitures - Income Information (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="DivestituresScheduleOfFinancingObligationAssetsAndLiabilitiesDetails" roleURI="http://www.ecovyst.com/role/DivestituresScheduleOfFinancingObligationAssetsAndLiabilitiesDetails"> |
| <link:definition> 9954500 - Disclosure - Divestitures - Schedule Of Financing Obligation Assets And Liabilities (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="DivestituresFinancingLeaseObligationDetails" roleURI="http://www.ecovyst.com/role/DivestituresFinancingLeaseObligationDetails"> |
| <link:definition> 9954501 - Disclosure - Divestitures - Financing Lease Obligation (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="DivestituresFinancingLeaseObligationDetails_1" roleURI="http://www.ecovyst.com/role/DivestituresFinancingLeaseObligationDetails_1"> |
| <link:definition> 9954501 - Disclosure - Divestitures - Financing Lease Obligation (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="RevenuefromContractswithCustomersNarrativeDetails" roleURI="http://www.ecovyst.com/role/RevenuefromContractswithCustomersNarrativeDetails"> |
| <link:definition> 9954502 - Disclosure - Revenue from Contracts with Customers - Narrative (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="RevenuefromContractswithCustomersDisaggregatedRevenueDetails" roleURI="http://www.ecovyst.com/role/RevenuefromContractswithCustomersDisaggregatedRevenueDetails"> |
| <link:definition> 9954503 - Disclosure - Revenue from Contracts with Customers - Disaggregated Revenue (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="FairValueMeasurementsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails" roleURI="http://www.ecovyst.com/role/FairValueMeasurementsAssetsandLiabilitiesMeasuredatFairValueonaRecurringBasisDetails"> |
| <link:definition> 9954504 - Disclosure - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="StockholdersEquityComponentsofAOCIDetails" roleURI="http://www.ecovyst.com/role/StockholdersEquityComponentsofAOCIDetails"> |
| <link:definition> 9954505 - Disclosure - Stockholders' Equity - Components of AOCI (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="StockholdersEquityPretaxandAftertaxComponentsofOtherComprehensiveIncomeLossDetails" roleURI="http://www.ecovyst.com/role/StockholdersEquityPretaxandAftertaxComponentsofOtherComprehensiveIncomeLossDetails"> |
| <link:definition> 9954506 - Disclosure - Stockholders' Equity - Pre-tax and After-tax Components of Other Comprehensive Income (Loss) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="StockholdersEquityChangebyComponentDetails" roleURI="http://www.ecovyst.com/role/StockholdersEquityChangebyComponentDetails"> |
| <link:definition> 9954507 - Disclosure - Stockholders' Equity - Change by Component (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="StockholdersEquityReclassificationsoutofAOCIDetails" roleURI="http://www.ecovyst.com/role/StockholdersEquityReclassificationsoutofAOCIDetails"> |
| <link:definition> 9954508 - Disclosure - Stockholders' Equity - Reclassifications out of AOCI (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="StockholdersEquityTreasuryStockRepurchasesDetails" roleURI="http://www.ecovyst.com/role/StockholdersEquityTreasuryStockRepurchasesDetails"> |
| <link:definition> 9954509 - Disclosure - Stockholders' Equity - Treasury Stock Repurchases (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="StockholdersEquityDividendsPaidDetails" roleURI="http://www.ecovyst.com/role/StockholdersEquityDividendsPaidDetails"> |
| <link:definition> 9954510 - Disclosure - Stockholders' Equity - Dividends Paid (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="OtherOperatingExpenseNetDetails" roleURI="http://www.ecovyst.com/role/OtherOperatingExpenseNetDetails"> |
| <link:definition> 9954511 - Disclosure - Other Operating Expense, Net (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InventoriesDetails" roleURI="http://www.ecovyst.com/role/InventoriesDetails"> |
| <link:definition> 9954512 - Disclosure - Inventories (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InventoriesDetails_1" roleURI="http://www.ecovyst.com/role/InventoriesDetails_1"> |
| <link:definition> 9954512 - Disclosure - Inventories (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InventoriesNetNarrativesDetails" roleURI="http://www.ecovyst.com/role/InventoriesNetNarrativesDetails"> |
| <link:definition> 9954513 - Disclosure - Inventories, Net - Narratives (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsinAffiliatedCompaniesNarrativesDetails" roleURI="http://www.ecovyst.com/role/InvestmentsinAffiliatedCompaniesNarrativesDetails"> |
| <link:definition> 9954514 - Disclosure - Investments in Affiliated Companies - Narratives (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsinAffiliatedCompaniesOwnershipPercentageDetails" roleURI="http://www.ecovyst.com/role/InvestmentsinAffiliatedCompaniesOwnershipPercentageDetails"> |
| <link:definition> 9954515 - Disclosure - Investments in Affiliated Companies - Ownership Percentage (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsinAffiliatedCompaniesSummarizedBalanceSheetDetails" roleURI="http://www.ecovyst.com/role/InvestmentsinAffiliatedCompaniesSummarizedBalanceSheetDetails"> |
| <link:definition> 9954516 - Disclosure - Investments in Affiliated Companies - Summarized Balance Sheet (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsinAffiliatedCompaniesSummarizedIncomeStatementDetails" roleURI="http://www.ecovyst.com/role/InvestmentsinAffiliatedCompaniesSummarizedIncomeStatementDetails"> |
| <link:definition> 9954517 - Disclosure - Investments in Affiliated Companies - Summarized Income Statement (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="InvestmentsinAffiliatedCompaniesRollforwardDetails" roleURI="http://www.ecovyst.com/role/InvestmentsinAffiliatedCompaniesRollforwardDetails"> |
| <link:definition> 9954518 - Disclosure - Investments in Affiliated Companies - Rollforward (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="PropertyPlantandEquipmentDetails" roleURI="http://www.ecovyst.com/role/PropertyPlantandEquipmentDetails"> |
| <link:definition> 9954519 - Disclosure - Property, Plant and Equipment (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="PropertyPlantandEquipmentNarrativesDetails" roleURI="http://www.ecovyst.com/role/PropertyPlantandEquipmentNarrativesDetails"> |
| <link:definition> 9954520 - Disclosure - Property, Plant and Equipment - Narratives (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="LeasesNarrativesDetails" roleURI="http://www.ecovyst.com/role/LeasesNarrativesDetails"> |
| <link:definition> 9954521 - Disclosure - Leases - Narratives (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="LeasesRightofUseLeaseAssetsandLeaseLiabilitiesDetails" roleURI="http://www.ecovyst.com/role/LeasesRightofUseLeaseAssetsandLeaseLiabilitiesDetails"> |
| <link:definition> 9954522 - Disclosure - Leases - Right-of-Use Lease Assets and Lease Liabilities (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="LeasesRemainingAverageWeightedAverageLeaseTermandDiscountRatesDetails" roleURI="http://www.ecovyst.com/role/LeasesRemainingAverageWeightedAverageLeaseTermandDiscountRatesDetails"> |
| <link:definition> 9954523 - Disclosure - Leases - Remaining Average Weighted Average Lease Term and Discount Rates (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="LeasesLeaseMaturityScheduleASC842Details" roleURI="http://www.ecovyst.com/role/LeasesLeaseMaturityScheduleASC842Details"> |
| <link:definition> 9954524 - Disclosure - Leases - Lease Maturity Schedule - ASC 842 (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="LeasesLeaseMaturityScheduleASC842Details_1" roleURI="http://www.ecovyst.com/role/LeasesLeaseMaturityScheduleASC842Details_1"> |
| <link:definition> 9954524 - Disclosure - Leases - Lease Maturity Schedule - ASC 842 (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="LeasesOtherLeaseInformationDetails" roleURI="http://www.ecovyst.com/role/LeasesOtherLeaseInformationDetails"> |
| <link:definition> 9954525 - Disclosure - Leases - Other Lease Information (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ReportableSegmentsNarrativesDetails" roleURI="http://www.ecovyst.com/role/ReportableSegmentsNarrativesDetails"> |
| <link:definition> 9954526 - Disclosure - Reportable Segments - Narratives (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ReportableSegmentsSummaryFinancialInformationbyReportableSegmentDetails" roleURI="http://www.ecovyst.com/role/ReportableSegmentsSummaryFinancialInformationbyReportableSegmentDetails"> |
| <link:definition> 9954527 - Disclosure - Reportable Segments - Summary Financial Information by Reportable Segment (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ReportableSegmentsReconciliationofNetIncometoAdjustedEBITDADetails" roleURI="http://www.ecovyst.com/role/ReportableSegmentsReconciliationofNetIncometoAdjustedEBITDADetails"> |
| <link:definition> 9954528 - Disclosure - Reportable Segments - Reconciliation of Net Income to Adjusted EBITDA (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ReportableSegmentsCapitalExpendituresDetails" roleURI="http://www.ecovyst.com/role/ReportableSegmentsCapitalExpendituresDetails"> |
| <link:definition> 9954529 - Disclosure - Reportable Segments - Capital Expenditures (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType id="ReportableSegmentsSalesbyGeographyDetails" roleURI="http://www.ecovyst.com/role/ReportableSegmentsSalesbyGeographyDetails"> |
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| | | <link:roleType id="ScheduleINarrativeDetails" roleURI="http://www.ecovyst.com/role/ScheduleINarrativeDetails"> |
| <link:definition> 9954580 - Disclosure - Schedule I - Narrative (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | </xs:appinfo> |
| | </xs:annotation> |
| <xs:element id="ecvt_DefinedBenefitPlanAmountsforAssetLiabilityandAccumulatedOtherComprehensiveIncomeRecognizedinStatementofFinancialPosition" abstract="false" name="DefinedBenefitPlanAmountsforAssetLiabilityandAccumulatedOtherComprehensiveIncomeRecognizedinStatementofFinancialPosition" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_RegenerationAndTreatmentServicesMember" abstract="true" name="RegenerationAndTreatmentServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_ProductsMember" abstract="true" name="ProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_SparePartsPolicyPolicyTextBlock" abstract="false" name="SparePartsPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/> |
| <xs:element id="ecvt_LesseeRemainingLeaseTerm" abstract="false" name="LesseeRemainingLeaseTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/> |
| <xs:element id="ecvt_April2022StockRepurchaseProgramMember" abstract="true" name="April2022StockRepurchaseProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_RealEstateTaxAbatementPercent" abstract="false" name="RealEstateTaxAbatementPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/> |
| <xs:element id="ecvt_EcoServicesPensionEquityPlanMember" abstract="true" name="EcoServicesPensionEquityPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationToBePaidYearFive" abstract="false" name="FinanceLeaseAndFinancingObligationToBePaidYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_FIFOOrWeightedAverageInventoryAmount" abstract="false" name="FIFOOrWeightedAverageInventoryAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_UnallocatedCorporateExpenses" abstract="false" name="UnallocatedCorporateExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_RepaymentOfFinancingObligation" abstract="false" name="RepaymentOfFinancingObligation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_DefinedBenefitPlanBenefitObligationPremiumsPaid" abstract="false" name="DefinedBenefitPlanBenefitObligationPremiumsPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_PackagingAndEngineeringPlasticsMember" abstract="true" name="PackagingAndEngineeringPlasticsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_ZeolystInternationalMember" abstract="true" name="ZeolystInternationalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeasesAndFinancingObligationWeightedAverageRemainingLeaseTerm" abstract="false" name="FinanceLeasesAndFinancingObligationWeightedAverageRemainingLeaseTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/> |
| <xs:element id="ecvt_DebtExtinguishmentCosts" abstract="false" name="DebtExtinguishmentCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_CompanyPerformanceMeasureMember" abstract="true" name="CompanyPerformanceMeasureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinancingLeaseAndFinancingObligationLiabilityUndiscountedExcessAmount" abstract="false" name="FinancingLeaseAndFinancingObligationLiabilityUndiscountedExcessAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_InflationReductionActAverageAnnualAdjustedIncomeExcess" abstract="false" name="InflationReductionActAverageAnnualAdjustedIncomeExcess" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_MandatoryPaymentsExcessCashFlow" abstract="false" name="MandatoryPaymentsExcessCashFlow" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/> |
| <xs:element id="ecvt_ScheduleofTaxPaymentsTableTextBlock" abstract="false" name="ScheduleofTaxPaymentsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/> |
| <xs:element id="ecvt_PaymentsUnderFinancingArrangement" abstract="false" name="PaymentsUnderFinancingArrangement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_EquityMethodInvestmentsRollForward" abstract="true" name="EquityMethodInvestmentsRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_INEOSCapitalPartnersMember" abstract="true" name="INEOSCapitalPartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationToBePaidYearThree" abstract="false" name="FinanceLeaseAndFinancingObligationToBePaidYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ExciseTaxOnTreasuryStockRepurchased" abstract="false" name="ExciseTaxOnTreasuryStockRepurchased" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_RevenueAndCostShippingAndHandlingPolicyPolicyTextBlock" abstract="false" name="RevenueAndCostShippingAndHandlingPolicyPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationLiabilitiesNoncurrent" abstract="false" name="FinanceLeaseAndFinancingObligationLiabilitiesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_DebtInstrumentCovenantFixedChargeCoverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantFixedChargeCoverageRatioMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/> |
| <xs:element id="ecvt_IndefiniteLivedIntangibleAssetsExcludingGoodwillNet" abstract="false" name="IndefiniteLivedIntangibleAssetsExcludingGoodwillNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_NonCashInvestingActivityAbstract" abstract="true" name="NonCashInvestingActivityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_OperatingAndFinanceRightOfUseLeaseAssetsTotal" abstract="false" name="OperatingAndFinanceRightOfUseLeaseAssetsTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_PerformanceMeasureAxis" abstract="true" name="PerformanceMeasureAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_ValuedatLowerofCostandNetRealizableValueAbstract" abstract="true" name="ValuedatLowerofCostandNetRealizableValueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_FinancingObligationLiability" abstract="false" name="FinancingObligationLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_DerivativeNumberOfInstrumentsInEffect" abstract="false" name="DerivativeNumberOfInstrumentsInEffect" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/> |
| <xs:element id="ecvt_DisposalGroupIncludingDiscontinuedOperationPricePerDefinitiveAgreement" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationPricePerDefinitiveAgreement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_TotalShareholderReturnTSRMember" abstract="true" name="TotalShareholderReturnTSRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_OtherForeignCountriesMember" abstract="true" name="OtherForeignCountriesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_DebtInstrumentFirstLienLeverageRatio" abstract="false" name="DebtInstrumentFirstLienLeverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_A2021GrantsMember" abstract="true" name="A2021GrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_PerformanceStockUnitFairValueAssumptionsRiskFreeInterestRate" abstract="false" name="PerformanceStockUnitFairValueAssumptionsRiskFreeInterestRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_PerformanceStockUnitFairValueAssumptionsExpectedVolatilityRate" abstract="false" name="PerformanceStockUnitFairValueAssumptionsExpectedVolatilityRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_March2020StockRepurchaseProgramMember" abstract="true" name="March2020StockRepurchaseProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationLiabilityToBePaid" abstract="false" name="FinanceLeaseAndFinancingObligationLiabilityToBePaid" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ServicesMember" abstract="true" name="ServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_ZeolystJointVentureMember" abstract="true" name="ZeolystJointVentureMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_PerformanceStockUnitsGrantsInPeriodWeightedAverageGrantDateFairValue" abstract="false" name="PerformanceStockUnitsGrantsInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/> |
| <xs:element id="ecvt_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanTax" abstract="false" name="AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ProductDemonstrationCostsMember" abstract="true" name="ProductDemonstrationCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_EcoServicesHourlyPensionPlanMember" abstract="true" name="EcoServicesHourlyPensionPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_IncomeLossfromEquityMethodInvestmentsExcludingPurchaseAccountingAdjustments" abstract="false" name="IncomeLossfromEquityMethodInvestmentsExcludingPurchaseAccountingAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_EstimateDisposalLoss" abstract="false" name="EstimateDisposalLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_PerformanceMeasureDomain" abstract="true" name="PerformanceMeasureDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/> |
| <xs:element id="ecvt_IndustrialMiningAutomotiveMember" abstract="true" name="IndustrialMiningAutomotiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_EquityMethodInvestmentAmortizationExpense" abstract="false" name="EquityMethodInvestmentAmortizationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_A2023GrantsMember" abstract="true" name="A2023GrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/> |
| <xs:element id="ecvt_DisposalGroupIncludingDiscontinuedOperationTransactionCostsForDisposal" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationTransactionCostsForDisposal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_November2022InterestRateCapAugust2024ToJuly2026Member" abstract="true" name="November2022InterestRateCapAugust2024ToJuly2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeasesAndFinancingObligationWeightedAverageDiscountRatePercent" abstract="false" name="FinanceLeasesAndFinancingObligationWeightedAverageDiscountRatePercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/> |
| <xs:element id="ecvt_ProvisionToReturnAdjustmentRecognized" abstract="false" name="ProvisionToReturnAdjustmentRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_CashpaidforamountsincludedinthemeasurementofleaseliabilitiesAbstract" abstract="true" name="CashpaidforamountsincludedinthemeasurementofleaseliabilitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_BusinessOptimizationIntegrationRestructuringAndOtherRelatedCosts" abstract="false" name="BusinessOptimizationIntegrationRestructuringAndOtherRelatedCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_AdjustmentForAmortizationExpense" abstract="false" name="AdjustmentForAmortizationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_RealEstateTaxAbatementTerm" abstract="false" name="RealEstateTaxAbatementTerm" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationLiabilitiesCurrent" abstract="false" name="FinanceLeaseAndFinancingObligationLiabilitiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_PrincipalPaymentsUnderFinanceLeasesAndFinancingObligationsIncludedInFinancingCashFlows" abstract="false" name="PrincipalPaymentsUnderFinanceLeasesAndFinancingObligationsIncludedInFinancingCashFlows" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_EmployeeMember" abstract="true" name="EmployeeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_LineofCreditFacilityPotentialCommitmentFeePercentage" abstract="false" name="LineofCreditFacilityPotentialCommitmentFeePercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_PerformanceStockUnitsMember" abstract="true" name="PerformanceStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_RightofUseAssetsObtainedinExchangeforNewLeaseLiabilitiesNonCashAbstract" abstract="true" name="RightofUseAssetsObtainedinExchangeforNewLeaseLiabilitiesNonCashAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_PQHoldingsEcoServicesMember" abstract="true" name="PQHoldingsEcoServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_PerformanceMaterialsMember" abstract="true" name="PerformanceMaterialsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_OtherIncomeExpenseNet" abstract="false" name="OtherIncomeExpenseNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_FinancingObligationsAssetsAndLiabilitiesLineItems" abstract="true" name="FinancingObligationsAssetsAndLiabilitiesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_ExciseTaxesPayable" abstract="false" name="ExciseTaxesPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationAccruedLiabilities" abstract="false" name="FinanceLeaseAndFinancingObligationAccruedLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationLiability" abstract="false" name="FinanceLeaseAndFinancingObligationLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_IncomeTaxBenefitOnTransactionCostsAndStockBasedCompensationExpenseOnly" abstract="false" name="IncomeTaxBenefitOnTransactionCostsAndStockBasedCompensationExpenseOnly" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_CleanFuelsEmissionControlsOtherMember" abstract="true" name="CleanFuelsEmissionControlsOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_January2022InterestRateCapExpiringOctober2025Member" abstract="true" name="January2022InterestRateCapExpiringOctober2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_SubsurfaceRemediationAndWetlandsManagementMember" abstract="true" name="SubsurfaceRemediationAndWetlandsManagementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_January2022InterestRateCapExpiringOctober2024Member" abstract="true" name="January2022InterestRateCapExpiringOctober2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_SharebasedCompensationAwardTrancheFourMember" abstract="true" name="SharebasedCompensationAwardTrancheFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_OperatingandFinanceLeaseLiabilitiesTotal" abstract="false" name="OperatingandFinanceLeaseLiabilitiesTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_SummaryOfSignificantAccountingPoliciesLineItems" abstract="true" name="SummaryOfSignificantAccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_SupplierPaymentTimingPeriod" abstract="false" name="SupplierPaymentTimingPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationToBePaidYearFour" abstract="false" name="FinanceLeaseAndFinancingObligationToBePaidYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_BusinessCombinationsMember" abstract="true" name="BusinessCombinationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_WeightedAverageDiscountRateAbstract" abstract="true" name="WeightedAverageDiscountRateAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_FinancingObligationsAssetsAndLiabilitiesTable" abstract="true" name="FinancingObligationsAssetsAndLiabilitiesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_A2021TermLoanFacilityMember" abstract="true" name="A2021TermLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_DebtInstrumentOriginalIssueDiscount" abstract="false" name="DebtInstrumentOriginalIssueDiscount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_WeightedAverageRemainingLeaseTermAbstract" abstract="true" name="WeightedAverageRemainingLeaseTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationToBePaidYearTwo" abstract="false" name="FinanceLeaseAndFinancingObligationToBePaidYearTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_TransitionServicesAgreementTerm" abstract="false" name="TransitionServicesAgreementTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/> |
| <xs:element id="ecvt_DisposalGroupIncludingDiscontinuedOperationNetAssetsDerecognizedOnDisposal" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationNetAssetsDerecognizedOnDisposal" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_PerformanceStockUnitFairValueAssumptionsExpectedTerm" abstract="false" name="PerformanceStockUnitFairValueAssumptionsExpectedTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationAssets" abstract="false" name="FinanceLeaseAndFinancingObligationAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_DebtInstrumentVariableRateFloor" abstract="false" name="DebtInstrumentVariableRateFloor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_TransactionAndOtherRelatedCosts" abstract="false" name="TransactionAndOtherRelatedCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_DeferredTaxAssetsTaxCreditWithholdingsForeign" abstract="false" name="DeferredTaxAssetsTaxCreditWithholdingsForeign" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_DefinedBenefitPlanPlanAssetsPremiumsPaid" abstract="false" name="DefinedBenefitPlanPlanAssetsPremiumsPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross" abstract="false" name="IndefiniteLivedIntangibleAssetsExcludingGoodwillGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_TwoThousandSeventeenOmnibusPlanMemberMember" abstract="true" name="TwoThousandSeventeenOmnibusPlanMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_PaymentsForBusinessDivestiture" abstract="false" name="PaymentsForBusinessDivestiture" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_DebtInstrumentScheduledRepaymentPercentageOfPrincipal" abstract="false" name="DebtInstrumentScheduledRepaymentPercentageOfPrincipal" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_DebtInstrumentBasisSpreadOnVariableRateSpreadAdjustment" abstract="false" name="DebtInstrumentBasisSpreadOnVariableRateSpreadAdjustment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_OpenMarketMember" abstract="true" name="OpenMarketMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationToBePaidAfterYearFive" abstract="false" name="FinanceLeaseAndFinancingObligationToBePaidAfterYearFive" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag" abstract="false" name="EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_DeferredTaxLiabilitiesOperatingLeaseRightofuseAssets" abstract="false" name="DeferredTaxLiabilitiesOperatingLeaseRightofuseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_A2022GrantsMember" abstract="true" name="A2022GrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_RepaymentOfInterestOnFinancingObligation" abstract="false" name="RepaymentOfInterestOnFinancingObligation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_TransitionServiceAgreementIncome" abstract="false" name="TransitionServiceAgreementIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_PerformanceStockUnitFairValueAssumptionsExpectedDividendRate" abstract="false" name="PerformanceStockUnitFairValueAssumptionsExpectedDividendRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_ZeolystC.V.Member" abstract="true" name="ZeolystC.V.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_SalesfromPartnershiptoCompanyMember" abstract="true" name="SalesfromPartnershiptoCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndObligationCost" abstract="false" name="FinanceLeaseAndObligationCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ShareRepurchaseMethodDomain" abstract="true" name="ShareRepurchaseMethodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_EquityMethodInvestmentsChargesRelatedtoPurchaseAccounting" abstract="false" name="EquityMethodInvestmentsChargesRelatedtoPurchaseAccounting" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_AdvancedMaterialsAndCatalystsMember" abstract="true" name="AdvancedMaterialsAndCatalystsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_InflationReductionActExciseTaxOnNetStockRepurchases" abstract="false" name="InflationReductionActExciseTaxOnNetStockRepurchases" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_DeferredTaxAssetsOperatingLeaseLiability" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_OperatingLeaseRentalPaymentsMember" abstract="true" name="OperatingLeaseRentalPaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationOtherLongTermLiabilities" abstract="false" name="FinanceLeaseAndFinancingObligationOtherLongTermLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_RestrictedStockRestrictedStockUnitsRSUsandPerformanceStockUnitsPSUsMember" abstract="true" name="RestrictedStockRestrictedStockUnitsRSUsandPerformanceStockUnitsPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_SummaryofSignificantAccountingPoliciesTableLineItems" abstract="true" name="SummaryofSignificantAccountingPoliciesTableLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_SalesRebateReserve" abstract="false" name="SalesRebateReserve" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ScheduleofRightofUseLeaseAssetsandLeaseLiabilitiesTableTextBlock" abstract="false" name="ScheduleofRightofUseLeaseAssetsandLeaseLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/> |
| <xs:element id="ecvt_InflationReductionActCorporateAlternativeMinimumTax" abstract="false" name="InflationReductionActCorporateAlternativeMinimumTax" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/> |
| <xs:element id="ecvt_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_AccruedCompensationandBonusCurrent" abstract="false" name="AccruedCompensationandBonusCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_SubsurfaceRemediationAndSoilVaporExtractionMember" abstract="true" name="SubsurfaceRemediationAndSoilVaporExtractionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_ForeignCurrencyAdjustmentsRelatedtoEquityMethodInvestments" abstract="false" name="ForeignCurrencyAdjustmentsRelatedtoEquityMethodInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_SummaryofSignificantAccountingPoliciesTable" abstract="true" name="SummaryofSignificantAccountingPoliciesTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_EcoservicesMember" abstract="true" name="EcoservicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_SecuredOvernightFinancingRateMember" abstract="true" name="SecuredOvernightFinancingRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_CashFlowInformationRelatedtoLeasesTableTextBlock" abstract="false" name="CashFlowInformationRelatedtoLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/> |
| <xs:element id="ecvt_FinanceLeaseAndFinancingObligationToBePaidYearOne" abstract="false" name="FinanceLeaseAndFinancingObligationToBePaidYearOne" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_NumberOfDefinedBenefitPensionPlans" abstract="false" name="NumberOfDefinedBenefitPensionPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/> |
| <xs:element id="ecvt_DisposalGroupsIncludingDiscontinuedOperationsDisclosureOfPerformanceChemicalsTextBlock" abstract="false" name="DisposalGroupsIncludingDiscontinuedOperationsDisclosureOfPerformanceChemicalsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/> |
| <xs:element id="ecvt_InventoryValuationInFIFOLowerThanLIFO" abstract="false" name="InventoryValuationInFIFOLowerThanLIFO" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ActuarialGainLossChangesduetoDiscountRates" abstract="false" name="ActuarialGainLossChangesduetoDiscountRates" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ScheduleOfFinancingObligationAssetsAndLiabilitiesTableTextBlock" abstract="false" name="ScheduleOfFinancingObligationAssetsAndLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/> |
| <xs:element id="ecvt_ProceedsFromFailedSaleLeaseback" abstract="false" name="ProceedsFromFailedSaleLeaseback" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_PerformanceChemicalsMember" abstract="true" name="PerformanceChemicalsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_ShareRepurchaseMethodAxis" abstract="true" name="ShareRepurchaseMethodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/> |
| <xs:element id="ecvt_ManufacturingCostsMember" abstract="true" name="ManufacturingCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_FinanceLeasAndFinancingObligationInterestPaymentOnLiability" abstract="false" name="FinanceLeasAndFinancingObligationInterestPaymentOnLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" abstract="false" name="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_A2020GrantsMember" abstract="true" name="A2020GrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_SecondaryOfferingMember" abstract="true" name="SecondaryOfferingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| <xs:element id="ecvt_ActuarialGainLossGeneralExperience" abstract="false" name="ActuarialGainLossGeneralExperience" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/> |
| <xs:element id="ecvt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/> |
| <xs:element id="ecvt_November2022InterestRateCapJuly2023ToJuly2024Member" abstract="true" name="November2022InterestRateCapJuly2023ToJuly2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/> |
| </xs:schema> |