減壓揮發(fā)過程分離共沸物的研究

1、天津大學(xué)碩士學(xué)位論文減壓揮發(fā)過程分離共沸物的研究姓名：陳金婷申請學(xué)位級別：碩士專業(yè)：制藥工程指導(dǎo)教師：白鵬20070101ABSTRACTLiquidmixturehavingazeotropicphenomenonCallnotbeseparatedbYconventionaldistillationItisandifficultproblemofseparateprojecttofindsomenewmethodstoseparat

2、ethesemixtures。ItisanurgentproblemtoseparateazeotropeinindustryInthispaperanewmethodwithoutintroducinganotherentrainmenttoseparatetheseazeotropicmixtureswasproposedandstudiedThismethodcanbeexplainedasaprocessofvacuumvola

3、tilizationIntheprocessofthis。experiment，thesystem’StemperatureiscontrolledbelowtheazeotropicboilingpointtoavoidcreatingazeotropeItcandependonthedifferenceofvolatilizationvelocityanddiffusionconstanttoseparatethesemixture

4、sbybreakthroughtheazeotropicboilingpointInthispapertheseazeotropesbeingseparatedincludecontainingwaterandexcludablewatersystem。Thevaccumvolatilizationseparateexperimenttoseparatefiveazeotropewascarriedoutincludingethanol

5、water、isopropanolwater，toluene—ethanol、n—butylalcoholm—xyleneandcyclohexane——ethan01bytheinfluenceofpressureonazeotropiccompositionThecomposingoftherawmaterialisbelowtheazeotropiccompositionofexperimentspressure。Fromther

6、esultsofeveryreceiver，alltheexperimentalsystemscangettheproductexceedingazeotropiccompositionofexperiment’SpressureTheeffectofoperationparameterofsystemicpressureandtemperatureandthetemperatureofcoolingwaterontheseparati

7、onresultwasstudiedIntheexperimentprocess，resultsCanbeevaluatedbYchangingsystem’Stemperature、pressureandthetemperatureofcoolingwaterTheexperimentshowedthattheseparationeffectwasimprovedwiththereducingofpressureandtheincre

8、aseoftemperatureAlltherawmaterialcanbeseparatedtosomeextend，andhaveadifferentseparateeffectThismethodhavingbeprovedbyexperimentcallbreakthroughazeotropicboilingpointtoseparateazeotropicmixture。Intheendtoaccountforthesepa