丁二酸二异丙酯合成工艺-研究

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1、AbstractDiisopropylsuccinateisanimportantchemicalintermediateswhichisusedinthefieldsofdyes，pharmaceuticals，agro—processing，andgaschromatographystationaryphase．DPP(1，4一diketopyrrolopyrrole)dyeconsumesthemostoftheDissopropylsuccinate．Recentyear，astheincr

2、easeindemandforDPPdye，theconsumptionofdissopropylsuccinateisincreasedtoo．Inthispaper，diisopropylsuccinatewassynthesizedfromsuccinicacidanhydrideandisopropanol、^，itllp-methylbenzenesulfonicacidascatalyst，andwitllcyclohexaneaswater·carryingagent．Theeffec

3、tsofwater-carryingagentaddingtime，reactiontime，alcoholtoacidratio，thecatalystamount，theamountofwater—carryingagent，Wasinvestigatedwithorthogonalandsinglefactorexperiment．TheresultsshowedthatthereactiontimeCanbeshortedabout1hourwhenthewater-carryingagen

4、tWasaddedafterthereactionstarted1hour．Theoptimaldiisopropylsuccinatesynthesisconditionswereasfollow：thealcoholtoacidratiois2．6，thecatalystamountis0．4g，thewater-carryingamountiS26ml，thereactiontimeWas4handthepurifieddiisopropylsuccinateyieldWas97．50％．Ak

5、indofcarbon-basedsolidsulfonicacid，usedtosynthesizeDiisopropylsuccinate，Waspreparedfromwalnutshellviacarbonizationandsulfonation．nleeffectsofthecarbonizationtemperature，carbonizationtime，thesulfonationtemperature，thecarbonizaiontimeandtheamountofsulfur

6、icacid，ontheactivityofcatalystwerediscussed．necatalystWascharacterized、vithIR．nleresultshowsthatthecatalysts’optimizedpreparationconditionswereasfollow：carbonizationtemperature300℃，carbonizationtime2ksulfonationtime5h，sulfonationtemperature90℃，theamoun

7、tofsulfuricacid15m1．Inthiscondition，thediisopropylsuccinateyieldWas96．42％withthiscatalyst．Theresearchresultprovidedsomedetaileddatesforthediisopropylsuccinateindustrialproduction．ThecatalystusinginthesynthesisofdissopropylsuccinateWaspotentialandhadsom

8、e玎Abstractengineeringvalue．Keywords：diisopropylsuccinate；succinicacidanhydride；carbon—basedsolidacid；walnutshell；catalyst；walnutshalll文献综述目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．IAbstract⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．II1文献综述⋯⋯⋯⋯⋯⋯