浅谈外文文献翻译：用混合溶剂萃取精馏分离乙腈

《浅谈外文文献翻译：用混合溶剂萃取精馏分离乙腈》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、浅谈外文文献翻译：用混合溶剂萃取精馏分离乙腈浅谈外文文献翻译：用混合溶剂萃取精馏分离乙腈导读：Azeotropicsystemethylformamide(DMF),glycol(EG)andDMF-EGmixtureassolventsseparay.Theeffectsofdifferentoperatingconditionsixedsolvent,solventfloixedsolventLiChunli1,ZongLili2andFangJingSchoolofChemicalEngineering,HebeiUniversityofTechnology,Tianjin,30

2、013E-mail:lichunli_hebut126.,Tel:+86-022-60202246Abstractputer-aidedmoleculardesign(CAMD)approachethylformamide(DMF),glycol(EG)andDMF-EGmixtureassolventsseparay.Theeffectsofdifferentoperatingconditionsixedsolvent,solventfloixedsolventDMF-EGshoixedsolventixedsolventimproved;undertheconditionsthat

3、solventfloL/min,refluxratiowas2,qualityfractionofethylacetateinthetopproductcouldreach99.62%.KeywordsSeparation;Batc5678910浅谈外文文献翻译：用混合溶剂萃取精馏分离乙腈(2)导读：acetateintheethodofliquid-liquidextractiveixedicalandpharmaceuticalindustriesaschemicalraaterialsandgoodanicsolvent[1].Butthetazeotrope,ethylacet

4、atehold77%andtheother23%isacetonitrile(massfraction),mondistillationmethodcannotmakeanyeffect.Therefore,somepanieshavetotreatthemasy,butalsopollutetheenvironment.Atpresent,DiJiandong[2]ofTianjinuniversityhasrealizedtheseparationofacetonitrile-ethylacetatebyheterogeneousbatchazeotropicdistillatio

5、n,buttheproductreceivedinthisption.Accordingtothedifferenceofsolubilitythatacetonitrileandethylacetateintheethodofliquid-liquidextractiveixedwithabundantwater,sorecoveryofacetonitrileisverydifficult.Accordingtoourknowledge,noauthorshavestudiedtheseparationofacetonitrilee5678910浅谈外文文献翻译：用混合溶剂萃取精馏

6、分离乙腈(3)导读：esolvent.Inrecentyears,mixedsolventsareappliedmoreandmoreinextractivedistillation.Thispaperisdevotedtothestudyoftheseparationofthemixtureacetonitrile–ethylacetatebyusingextractivebatchdistillationixedsolvents.First,theselectionofthylacetatebyextractivedistillation.Inrecentyears,theappl

7、icationofextractivedistillation[4-6]fortheseparationofclose-boilingmixturehasbeenercializedovertheconventionaldistillationayalsobefeasiblebutninvestment.Hoofselectivityandsolubilityareofteninconsistentinsinglesolvent,limitit