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<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2022-02-24T14:51:32.5785965+00:00 -->
<!-- Version            : 5.0.1.728 -->
<!-- Package ID         : c2b6f59f81a242259ac03fba8c9695ec -->
<!-- Copyright (c) 2022 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="lxu_PreciousMetals" name="PreciousMetals" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_SuppliesPrepaidItemsAndOther" name="SuppliesPrepaidItemsAndOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_IntangiblesAndOtherAssetsNet" name="IntangiblesAndOtherAssetsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_TemporaryEquityDividendRatePercentage" name="TemporaryEquityDividendRatePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_DeemedDividendOnRedeemablePreferredStocks" name="DeemedDividendOnRedeemablePreferredStocks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_DividendPaidOnNonRedeemablePreferredStockUponConversion" name="DividendPaidOnNonRedeemablePreferredStockUponConversion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_ConversionOfNonRedeemablePreferredStockIntoCommonStockShares" name="ConversionOfNonRedeemablePreferredStockIntoCommonStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ConversionOfNonRedeemablePreferredStockIntoCommonStock" name="ConversionOfNonRedeemablePreferredStockIntoCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_AmortizationOfIntangibleAndOtherAssets" name="AmortizationOfIntangibleAndOtherAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_ProceedsFromVendorSettlementsAssociatedWithPropertyPlantAndEquipment" name="ProceedsFromVendorSettlementsAssociatedWithPropertyPlantAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_PaymentsOfDebtRelatedCosts" name="PaymentsOfDebtRelatedCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_PaymentsOfCostsToExchangeRedeemablePreferredStocksForCommonStock" name="PaymentsOfCostsToExchangeRedeemablePreferredStocksForCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_PaymentsOfDividendsOnNonRedeemablePreferredStocks" name="PaymentsOfDividendsOnNonRedeemablePreferredStocks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_SixPointTwoFivePercentageSeniorSecuredNotesMember" name="SixPointTwoFivePercentageSeniorSecuredNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NinePointSixTwoFivePercentageLongTermSeniorSecuredNotesDueIn2023Member" name="NinePointSixTwoFivePercentageLongTermSeniorSecuredNotesDueIn2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SixPointSevenSixSecuredPromissoryNoteDueTwoThousandAndTwentyThreeMember" name="SixPointSevenSixSecuredPromissoryNoteDueTwoThousandAndTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_RedeemablePreferredStocksTextBlock" name="RedeemablePreferredStocksTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_NonRedeemablePreferredStockTextBlock" name="NonRedeemablePreferredStockTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ExecutiveBenefitAgreementsEmployeeSavingsPlansAndCollectiveBargainingAgreementsDisclosureTextBlock" name="ExecutiveBenefitAgreementsEmployeeSavingsPlansAndCollectiveBargainingAgreementsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_NatureOfBusinessPolicyTextBlock" name="NatureOfBusinessPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_AccruedInsuranceLiabilitiesPolicyTextBlock" name="AccruedInsuranceLiabilitiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ExecutiveBenefitAgreementsPolicyTextBlock" name="ExecutiveBenefitAgreementsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_RecognitionOfIncentiveTaxCreditsPolicyTextBlock" name="RecognitionOfIncentiveTaxCreditsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_InsuranceRecoveriesRevenueRecognitionPolicyTextBlock" name="InsuranceRecoveriesRevenueRecognitionPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_RevenueRecognitionCostOfSalesPolicyTextBlock" name="RevenueRecognitionCostOfSalesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ScheduleOfExecutiveBenefitAgreementsTableTextBlock" name="ScheduleOfExecutiveBenefitAgreementsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ScheduleOfLifeInsurancePoliciesOwnedTableTextBlock" name="ScheduleOfLifeInsurancePoliciesOwnedTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ScheduleOfLifeInsurancePremiumsCostTableTextBlock" name="ScheduleOfLifeInsurancePremiumsCostTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ComponentsOfLeaseExpenseSupplementalCashFlowInformationRelatedToLeasesAndOtherLeaseRelatedInformationTableTextBlock" name="ComponentsOfLeaseExpenseSupplementalCashFlowInformationRelatedToLeasesAndOtherLeaseRelatedInformationTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_NumberOfFacilitiesForManufactureAndDistributionOfProducts" name="NumberOfFacilitiesForManufactureAndDistributionOfProducts" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SignificantAccountingPoliciesTable" name="SignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SpecialDividendsMember" name="SpecialDividendsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_CustomersIncludingAffiliatesMember" name="CustomersIncludingAffiliatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_KochFertilizerLLCMember" name="KochFertilizerLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_CoffeyvilleResourcesNitrogenFertilizersLLCMember" name="CoffeyvilleResourcesNitrogenFertilizersLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NumberOfShareIssuedOfCommonStockExchangedForPreferredStock" name="NumberOfShareIssuedOfCommonStockExchangedForPreferredStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_NumberOfCustomersAccountedAsPercentageOfAccountsReceivable" name="NumberOfCustomersAccountedAsPercentageOfAccountsReceivable" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_CreditSalesPaymentTerms" name="CreditSalesPaymentTerms" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_InsuranceCoverageOfGeneralLiabilityAndAutoLiabilityRisks" name="InsuranceCoverageOfGeneralLiabilityAndAutoLiabilityRisks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_InsurancePolicyCoveringPollutionLiability" name="InsurancePolicyCoveringPollutionLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_TaxBenefitRecognized" name="TaxBenefitRecognized" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_NoncashIncentiveTaxCreditReceivable" name="NoncashIncentiveTaxCreditReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_PreferredStockExchangePrice" name="PreferredStockExchangePrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="lxu_NumberDaysUsedDetermineExchangePrice" name="NumberDaysUsedDetermineExchangePrice" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ExchangeAgreementMember" name="ExchangeAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_EldridgeMember" name="EldridgeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeriesEAndSeriesFRedeemablePreferredStockMember" name="SeriesEAndSeriesFRedeemablePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SellingGeneralAndAdministrativeExpenseMember" name="SellingGeneralAndAdministrativeExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NumberOfSharesIssuedOfCommonStockExchangedForPreferredStock" name="NumberOfSharesIssuedOfCommonStockExchangedForPreferredStock" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="lxu_DeemedDividendsOnPreferredStocks" name="DeemedDividendsOnPreferredStocks" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_TemporaryEquityAccretionLiquidationPreference" name="TemporaryEquityAccretionLiquidationPreference" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_TemporaryEquityAccretionDiscountAndStockIssuanceCosts" name="TemporaryEquityAccretionDiscountAndStockIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_TemporaryEquityCostsRelatingToExchangeTransactions" name="TemporaryEquityCostsRelatingToExchangeTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_TemporaryEquityShareCarryingValue" name="TemporaryEquityShareCarryingValue" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_TemporaryEquityValueCarryingValue" name="TemporaryEquityValueCarryingValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_StockholdersEquityLineItems" name="StockholdersEquityLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_StockholdersEquityTable" name="StockholdersEquityTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeriesERedeemablePreferredStockMember" name="SeriesERedeemablePreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeriesFRedeemablePreferredStocksMember" name="SeriesFRedeemablePreferredStocksMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_AccruedLiabilityEmbeddedDerivativeMember" name="AccruedLiabilityEmbeddedDerivativeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_PercentageOfCommonStockSharesHeld" name="PercentageOfCommonStockSharesHeld" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_PaymentsForCashBasedAwardsLiability" name="PaymentsForCashBasedAwardsLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_EarningsPerShareNumeratorAbstract" name="EarningsPerShareNumeratorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_RestrictedStockAndRestrictedStockUnitsMember" name="RestrictedStockAndRestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_PropertyPlantAndEquipmentUsefulLifeAndValuesAbstract" name="PropertyPlantAndEquipmentUsefulLifeAndValuesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_FurnitureFixturesAndStoreEquipmentMember" name="FurnitureFixturesAndStoreEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_CapitalSparePartsMember" name="CapitalSparePartsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_PropertyPlantAndEquipmentCapitalizedInterestCostsAbstract" name="PropertyPlantAndEquipmentCapitalizedInterestCostsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ChemicalProcessingPlantsAndPlantInfrastructureMember" name="ChemicalProcessingPlantsAndPlantInfrastructureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ProcessingPlantComponentsMember" name="ProcessingPlantComponentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_VehiclesAndOtherRollingStockMember" name="VehiclesAndOtherRollingStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ThreePointSevenFiveWorkingCapitalRevolverLoanMember" name="ThreePointSevenFiveWorkingCapitalRevolverLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeniorSecuredNotesDueTwoThousandAndTwentyEightMember" name="SeniorSecuredNotesDueTwoThousandAndTwentyEightMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeniorSecuredNotesDueTwoThousandAndTwentyThreeMember" name="SeniorSecuredNotesDueTwoThousandAndTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_EightPointThreeTwoPercentSecuredFinancingDueTwoThousandAndTwentyThreeMember" name="EightPointThreeTwoPercentSecuredFinancingDueTwoThousandAndTwentyThreeMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_EightPointSevenFivePercentSecuredLoanAgreementDueTwoThousandTwentyFiveMember" name="EightPointSevenFivePercentSecuredLoanAgreementDueTwoThousandTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_EightPointSevenFivePercentSecuredFinancingDueTwoThousandAndTwentyFiveMember" name="EightPointSevenFivePercentSecuredFinancingDueTwoThousandAndTwentyFiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_OnePointZeroZeroPercentUnsecuredLoanAgreementDueTwoThousandTwentyTwoMember" name="OnePointZeroZeroPercentUnsecuredLoanAgreementDueTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SecuredPromissoryNoteDueTwoThousandAndTwentyOneMember" name="SecuredPromissoryNoteDueTwoThousandAndTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_OtherLongTermDebtMember" name="OtherLongTermDebtMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_MinimumExcessBorrowingAvailabilityAsPercentageOfMaximumRevolverCommitments" name="MinimumExcessBorrowingAvailabilityAsPercentageOfMaximumRevolverCommitments" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_LoanRequirementDescription" name="LoanRequirementDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_FixedChargeCoverageRatio" name="FixedChargeCoverageRatio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="lxu_SpringingFinancialCovenantMember" name="SpringingFinancialCovenantMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_WorkingCapitalRevolverMember" name="WorkingCapitalRevolverMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_WellsFargoMember" name="WellsFargoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SixPointTwoFivePercentageLongTermSeniorSecuredNotesDueIn2028Member" name="SixPointTwoFivePercentageLongTermSeniorSecuredNotesDueIn2028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeniorSecuredNotesMember" name="SeniorSecuredNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_OptionalRedemptionOnOrAfterOctoberFifteenTwoThousandTwentyFourMember" name="OptionalRedemptionOnOrAfterOctoberFifteenTwoThousandTwentyFourMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ChangeOfControlMember" name="ChangeOfControlMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ElDoradoChemicalCompanyMember" name="ElDoradoChemicalCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SecuredLoanAgreementMember" name="SecuredLoanAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ElDoradoAmmoniaLimitedLiabilityCompanyMember" name="ElDoradoAmmoniaLimitedLiabilityCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_PaycheckProtectionProgramMember" name="PaycheckProtectionProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_DebtInstrumentMaturityTerm" name="DebtInstrumentMaturityTerm" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_DebtInstrumentIssuedPricePercentage" name="DebtInstrumentIssuedPricePercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_LoanAgreementAmount" name="LoanAgreementAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_TaxCreditCarryForwardExpirationTerm" name="TaxCreditCarryForwardExpirationTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_TaxCreditCarryforwardBeginningExpirationYear" name="TaxCreditCarryforwardBeginningExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_GrossAmountOfTaxCreditsAvailableToOffsetFederalBenefit" name="GrossAmountOfTaxCreditsAvailableToOffsetFederalBenefit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_GrossAmountOfTaxCreditsAvailableToOffsetStateIncomeTaxes" name="GrossAmountOfTaxCreditsAvailableToOffsetStateIncomeTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_OperatingLossCarryforwardsUtilizedCurrentPeriod" name="OperatingLossCarryforwardsUtilizedCurrentPeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_FederalNetOperatingLossCarryforwardsExpirationYear" name="FederalNetOperatingLossCarryforwardsExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_StateNetOperatingLossCarryForwardsExpirationYear" name="StateNetOperatingLossCarryForwardsExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_DeferredTaxAssetsLeaseLiability" name="DeferredTaxAssetsLeaseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_DeferredTaxAssetInterestExpenseCarryforward" name="DeferredTaxAssetInterestExpenseCarryforward" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_DeferredTaxLiabilitiesPrepaidAndOtherInsuranceReserves" name="DeferredTaxLiabilitiesPrepaidAndOtherInsuranceReserves" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_TermOfAgreementExpirationDateMonthAndYear" name="TermOfAgreementExpirationDateMonthAndYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_TermOfTerminationNotice" name="TermOfTerminationNotice" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_CommitmentsAndContingenciesLineItems" name="CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_CommitmentsAndContingenciesTable" name="CommitmentsAndContingenciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_PryorChemicalMember" name="PryorChemicalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_UANSupplyAgreementMember" name="UANSupplyAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_AmmoniaSupplyAgreementMember" name="AmmoniaSupplyAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NitricAcidSupplyAgreementMember" name="NitricAcidSupplyAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NaturalGasPurchaseCommitmentsMember" name="NaturalGasPurchaseCommitmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_GlobalIndustrialIncMember" name="GlobalIndustrialIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_LeidosConstructorsLimitedLiabilityCompanyMember" name="LeidosConstructorsLimitedLiabilityCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SupplyCommitmentDescription" name="SupplyCommitmentDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_NoticeOfTermination" name="NoticeOfTermination" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_QuantityOfNitricAcid" name="QuantityOfNitricAcid" type="dtr-types:weightItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_TermOfRenewal" name="TermOfRenewal" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_RealizedGainLossOnNaturalGasForwardContractsHeld" name="RealizedGainLossOnNaturalGasForwardContractsHeld" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_LitigationSettlementPartsAwardedFromOtherParty" name="LitigationSettlementPartsAwardedFromOtherParty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_LitigationSettlementServicesAndPartsAwardedFromOtherParty" name="LitigationSettlementServicesAndPartsAwardedFromOtherParty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_LitigationSettlementNoncurrentAccountsReceivable" name="LitigationSettlementNoncurrentAccountsReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_NaturalGasPurchaseCommitmentVolume" name="NaturalGasPurchaseCommitmentVolume" type="dtr-types:energyItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_WeightedAveragePurchasePriceForNaturalGas" name="WeightedAveragePurchasePriceForNaturalGas" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_WeightedAverageNaturalGasPricePerUnit" name="WeightedAverageNaturalGasPricePerUnit" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="lxu_WeightedAverageNaturalGasMarketValuePerUnit" name="WeightedAverageNaturalGasMarketValuePerUnit" type="srt-types:perUnitItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="lxu_WeightedAverageNaturalGasMarketValue" name="WeightedAverageNaturalGasMarketValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_EstimatedShareOfAnnualOperatingCostOfPipelineMinimum" name="EstimatedShareOfAnnualOperatingCostOfPipelineMinimum" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_EstimatedShareOfAnnualOperatingCostOfPipelineMaximum" name="EstimatedShareOfAnnualOperatingCostOfPipelineMaximum" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_OperatingAgreementDescription" name="OperatingAgreementDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_LiabilitiesRelatedToSuretiesMaximum" name="LiabilitiesRelatedToSuretiesMaximum" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_PaymentsUnderEmploymentAndSeveranceAgreements" name="PaymentsUnderEmploymentAndSeveranceAgreements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_RelatedPartyCommitmentObligationPercentage" name="RelatedPartyCommitmentObligationPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ProductLiabilityDeductiblePerClaim" name="ProductLiabilityDeductiblePerClaim" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_NumberOfSettlementAgreements" name="NumberOfSettlementAgreements" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="lxu_LiabilityReserve" name="LiabilityReserve" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_PrejudgmentInterest" name="PrejudgmentInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_PercentageOfAccruePostJudgementInterest" name="PercentageOfAccruePostJudgementInterest" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_AccruedPreJudgmentAndPostJudgmentInterest" name="AccruedPreJudgmentAndPostJudgmentInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_ClaimAmountNotApprovedForPayment" name="ClaimAmountNotApprovedForPayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_NaturalGasCurrentAssetMember" name="NaturalGasCurrentAssetMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NaturalGasCurrentLiabilityMember" name="NaturalGasCurrentLiabilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NonOperatingOtherIncomeAndExpenseMember" name="NonOperatingOtherIncomeAndExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_GainLossOnSaleNaturalGasForwardContracts" name="GainLossOnSaleNaturalGasForwardContracts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_UnrealizedGainLossOnNaturalGasForwardContractsHeld" name="UnrealizedGainLossOnNaturalGasForwardContractsHeld" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_PreferredParticipationRightsInDividendsAndLiquidationCommonStockShareEquivalent" name="PreferredParticipationRightsInDividendsAndLiquidationCommonStockShareEquivalent" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_TwoThousandSixteenPlanMember" name="TwoThousandSixteenPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_TwoThousandEightPlanMember" name="TwoThousandEightPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_TwoThousandTwentyOneRestrictedStockMember" name="TwoThousandTwentyOneRestrictedStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_TwoThousandTwentyRestrictedStockMember" name="TwoThousandTwentyRestrictedStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_TwoThousandNineteenRestrictedStockMember" name="TwoThousandNineteenRestrictedStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_PerformanceBasedRestrictedStockMember" name="PerformanceBasedRestrictedStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ExercisePriceOfStockOptionAsPercentageOfFairMarketValue" name="ExercisePriceOfStockOptionAsPercentageOfFairMarketValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_MaximumTermOfStockOptions" name="MaximumTermOfStockOptions" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_MinimumExercisePriceOfStockOptionGrantDate" name="MinimumExercisePriceOfStockOptionGrantDate" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_RestrictedStockPerformanceBasedRestrictedStockAndRestrictedStockUnitsRSUMember" name="RestrictedStockPerformanceBasedRestrictedStockAndRestrictedStockUnitsRSUMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentagePerYear" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentagePerYear" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockVestedInPeriodFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockVestedInPeriodFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingWeightedAverageRemainingContractualTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestingWeightedAverageRemainingContractualTerms" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedAtPercentageRateForFirstFiveYears" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedAtPercentageRateForFirstFiveYears" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingFinalYear" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingFinalYear" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_AllocatedShareBasedCompensationExpenseCostOfSales" name="AllocatedShareBasedCompensationExpenseCostOfSales" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_AllocatedShareBasedCompensationExpenseSellingGeneralAndAdministrative" name="AllocatedShareBasedCompensationExpenseSellingGeneralAndAdministrative" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionOutstandingWeightedAverageRemainingVestingTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionOutstandingWeightedAverageRemainingVestingTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_OwnershipChangeDescription" name="OwnershipChangeDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_PreferredStockLineItems" name="PreferredStockLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_PreferredStockTable" name="PreferredStockTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeriesBAndSeriesDPreferredStockMember" name="SeriesBAndSeriesDPreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_MinimumAmountOfLifeInsurancePoliciesToBeKeptByCompany" name="MinimumAmountOfLifeInsurancePoliciesToBeKeptByCompany" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_CollectiveBargainingAgreementsMember" name="CollectiveBargainingAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_UndiscountedDeathBenefits" name="UndiscountedDeathBenefits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_AccruedDeathBenefits" name="AccruedDeathBenefits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_LoansOnCashSurrenderValues" name="LoansOnCashSurrenderValues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_CashSurrenderValueNet" name="CashSurrenderValueNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_CostOfLifeInsurancePremiumsIncludedInSellingGeneralAndAdministrativeExpenseGross" name="CostOfLifeInsurancePremiumsIncludedInSellingGeneralAndAdministrativeExpenseGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_CostOfLifeInsurancePremiumsIncludedInSellingGeneralAndAdministrativeExpenseNet" name="CostOfLifeInsurancePremiumsIncludedInSellingGeneralAndAdministrativeExpenseNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_UnionAgreementEarliestExpirationDate" name="UnionAgreementEarliestExpirationDate" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_UnionAgreementLatestExpirationDate" name="UnionAgreementLatestExpirationDate" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_AntiDilutionTermsMember" name="AntiDilutionTermsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_LSBFundingMember" name="LSBFundingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_GolsenHoldersMember" name="GolsenHoldersMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_NewSeniorSecuredNotesMember" name="NewSeniorSecuredNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_BarryHGolsenMember" name="BarryHGolsenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_TransitionAgreementMember" name="TransitionAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_RelatedPartyTransactionRetirementDate" name="RelatedPartyTransactionRetirementDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_RelatedPartyTransactionAgreementCommencementDate" name="RelatedPartyTransactionAgreementCommencementDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_RelatedPartyTransactionAnnualCashRetainerPayable" name="RelatedPartyTransactionAnnualCashRetainerPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_RelatedPartyTransactionAdditionalMonthlyAmountPayable" name="RelatedPartyTransactionAdditionalMonthlyAmountPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_ExtinguishmentOfPPPLoan" name="ExtinguishmentOfPPPLoan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_PreferredStockDividendsAccretionEmbeddedDerivativeExchangedForCommonStockNetOfRelatedCostsInAccountsPayable" name="PreferredStockDividendsAccretionEmbeddedDerivativeExchangedForCommonStockNetOfRelatedCostsInAccountsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_CashPaymentsForAbstract" name="CashPaymentsForAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SupplementalCashFlowInformationLineItems" name="SupplementalCashFlowInformationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SupplementalCashFlowInformationTable" name="SupplementalCashFlowInformationTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_SeriesBAndDPreferredStockMember" name="SeriesBAndDPreferredStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ChemicalMember" name="ChemicalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_AgriculturalProductsMember" name="AgriculturalProductsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_IndustrialProductsMember" name="IndustrialProductsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_MiningProductsMember" name="MiningProductsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_WeightedAverageRevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod" name="WeightedAverageRevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPercent" name="RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="lxu_OtherLeaseCost" name="OtherLeaseCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="lxu_CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities" name="CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_SupplementalCashFlowInformationRelatedToLeasesAbstract" name="SupplementalCashFlowInformationRelatedToLeasesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_OtherLeaseRelatedInformationAbstract" name="OtherLeaseRelatedInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_VendorRecoverySettlement" name="VendorRecoverySettlement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="lxu_ScheduleOfQuarterlyFinancialDataLineItems" name="ScheduleOfQuarterlyFinancialDataLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_ScheduleOfQuarterlyFinancialDataTable" name="ScheduleOfQuarterlyFinancialDataTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="lxu_TurnaroundExpenseMember" name="TurnaroundExpenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
</xsd:schema>
