Liquid Liquid Extraction Operations and Equipment

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1、Section15Liquid-LiquidExtractionOperationsandEquipmentLannyA.Robbins,Ph.D.,ResearchFellow,DowChemicalCompany;Member,Ameri-canInstituteofChemicalEngineersRogerW.Cusack,VicePresident,GlitschProcessSystems,Inc.;Member,AmericanInstituteofChemicalEngineersLIQUID-LIQUIDEXTRACTIONOPERATIONSRatesofMass

2、Transfer.......................................15-22UsesforLiquid-LiquidExtraction..............................15-4Continuous-PhaseCoefficients..............................15-22Definitions................................................15-5Dispersed-PhaseCoefficients..........................

3、.....15-23OverallCoefficientsandStageEfficiency......................15-23Scale-UpofMixers........................................15-24PHASEEQUILIBRIASettlers....................................................15-25EquilibriumPartitionRatios..................................15-6EmulsionsandDisp

4、ersions.................................15-25PhaseDiagrams............................................15-6Sedimentation............................................15-26ThermodynamicBasisofLiquid-LiquidEquilibria................15-8Coalescence.............................................15-26Exa

5、mple1:PartitionRatios.................................15-8GravitySettlers;Decanters.................................15-26Hydrogen-BondingInteractions...............................15-8Cyclones..................................................15-27ExperimentalEquilibriumData.....................

6、..........15-9Centrifuges................................................15-27DesirableSolventProperties..................................15-9SettlerAuxiliaries...........................................15-27Coalescers...............................................15-27SeparatingMembranes......

7、...............................15-27CALCULATIONMETHODSElectricalDevices.........................................15-28SingleStage................................................15-16Mixer-SettlerCombinations........................