简介:Inordertoseparatemethylacetateandmethanolazeotrope,theionicliquid(IL)1,3-dimethylimidazoliumdimethylphosphate([DMIM]DMP)wasusedasthesolvent.TheAspenPlussoftwarewasusedtodesignandoptimizetheextractivedistillationprocess.Undertheoptimizedconditions,themassfractionsofmethylacetateandmethanolwerebothabove99.5%.Comparedwiththedimethylsulfoxide(DMSO)process,the[DMIM]DMPprocesshastheadvantagesofsavingenergyandlowerequipmentinvestmentcost.Theresultshowsthatusing[DMIM]DMPasthesolventtoseparateamethylacetateandmethanolazeotropehasbetterprospectinindustrialapplication.