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  <xs:element id="oec_ActuarialGainLossRecognizedInEarnings" abstract="false" name="ActuarialGainLossRecognizedInEarnings" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_GuaranteeObligationsCarryingAmount" abstract="false" name="GuaranteeObligationsCarryingAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_AncillaryCreditFacilitiesMember" abstract="true" name="AncillaryCreditFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_UncommittedMember" abstract="true" name="UncommittedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="oec_IncreaseDecreaseInProvisions" abstract="false" name="IncreaseDecreaseInProvisions" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_BankOfChinaTermLoanMember" abstract="true" name="BankOfChinaTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_RevolvingCreditFacilityTotalCommitmentMember" abstract="true" name="RevolvingCreditFacilityTotalCommitmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_RubberMember" abstract="true" name="RubberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_LongTermDebtGrossCurrent" abstract="false" name="LongTermDebtGrossCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_WorkingCapitalLoanMember" abstract="true" name="WorkingCapitalLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="oec_CashInflowsRelatedToCurrentFinancialLiabilitiesFinancingActivities" abstract="false" name="CashInflowsRelatedToCurrentFinancialLiabilitiesFinancingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_TermLoanMember" abstract="true" name="TermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_TermLoanFacilityMember" abstract="true" name="TermLoanFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_CreditFacilityTermLoanMember" abstract="true" name="CreditFacilityTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_ChinaTermLoanMember" abstract="true" name="ChinaTermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_LongtermDebtExcludingCurrentMaturitiesGross" abstract="false" name="LongtermDebtExcludingCurrentMaturitiesGross" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_SpecialtiesMember" abstract="true" name="SpecialtiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_OrionEngineeredCarbonsGmbHMember" abstract="true" name="OrionEngineeredCarbonsGmbHMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="oec_LeasesRightOfUseAsset" abstract="false" name="LeasesRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_CorporateCharges" abstract="false" name="CorporateCharges" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_DepreciationAmortizationAndAssetImpairment" abstract="false" name="DepreciationAmortizationAndAssetImpairment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_CashOutflowsRelatedToCurrentFinancialLiabilitiesFinancingActivities" abstract="false" name="CashOutflowsRelatedToCurrentFinancialLiabilitiesFinancingActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="oec_CommittedMember" abstract="true" name="CommittedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
