试析用一乙醇胺催化合成甘氨酸及其分离研究

《试析用一乙醇胺催化合成甘氨酸及其分离研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、浙江大学硕士学位论文用一乙醇胺催化合成甘氨酸及其分离研究姓名：卢祖国申请学位级别：硕士专业：化学工程指导教师：蔡振云2003.2.1辩糕大学硕士学位论交摘要本论文在总结了工攮上几释霄氯酸璧产工苗静基碜一匙，掇痿了雳一己髂胺在焦氧化钠的碱滚中经RaneyCu憾化辗化合成甘氨酸钠，氍经中黼。电渗析麒分离援缝曹氯羧靛薪王芑。本文建贵金蠖羡蛙RaneyCu，锉他测戆最健粒径为200～-400勇，复擞淑壤掇制在挎0℃～1辨℃，艇威压力维持在0．5～1．2MPa。通过多次黝对比实骚，}七较了在不嗣罐往裁鹣稳楚下～Z。醇黢戆转像率、越笺酸镳翰选嚣髓、爱瘦髓黎要熟时间以及催化剂本

2、身的熬复使用次数。实验结聚淡明经改性的RaneyCu倦化剂有雯好鹣潘瞧窥委彀静谈穗寿命，既褥离了一乙蘸黢靛转傀擎器嚣氮酸镄瓣这择毪，又缭短r爱痤霾誊瓣，镤纯裁赘穗蠲寿命这孙浚馘主。一己嚣藏熬平稳转识率势95％以。E，甘氨陂铺的选择性为99％。爱擞舞夔混合匏耀然酸中翻，褥到髓氨酸弱氯亿钠她潼套物。本文糙出用漱渗蜇亍藤势离韵方法狳轰混合耪中鼹鬣毪獭，浓缩褥委产瀑营氮黢。努剽氍交了不鞫漉螫瓣壤蔽彀浚、魄渗辑效霉、黢鼗攀竣及缝糕茨影嫡，蜜骏取褥了比较满意魄结果，甘氨酸的收攀≥92％，缝废可遮98％，实验绻粜为中试和工业放大提供了可靠酶基礁。关缱谊茁§妊二五§≤：犍R粕。y

3、eh罐瀛魄渗耩簇棼；磊鼗旺太：警疆圭攀健豫囊ABSTRACTOnthebaseofsmnmarizationofseveralprocessestoindustriallysynthesizeglycin#,the搿lp释studiesartewglycincpreparationprocess：monocthano

4、am／aciscontactedw／ththeaqueoussolutionofsodiumhydroxideandoxygenatedatthepresenceofRaneyCoppercatalysttoobtainsoditmqsaltofgl

5、yeine,whichisneulralizedwithhydrochloricacidandseparaledwithsodiumchlorideusingeleetrodialysisandmembraneseparationtechnologytoobtainpuregb潜ine．琢thisresearchRa魏eyCoppercatalystisdeveloped铡搬nob／emetals。Theoptimalreactiontemperatureisbetween150’Caid190’C．爵．7MPa““l。IMPaforpressureand200～

6、400Inuforcatalystsize．"Hu'oughanumberofeon矬astiveexpcriments，wecomparetireconversionrateofmonoethanolamine,辩妖穰v毋嘏潮i髓msaltofglycine，repeatedtimesofcatalystitselfandreactiontimeundertheactionofdifferentcatalysts．Theexperimentresultdemonstratesthatthedevelopede,aneyCoppercatalystcannoton

7、lyimprovetheactivityofthe鞠凇and臻箍thel雌gcv／t％套罐alsoc奢曝increasetheconversionofmonoethanolmnineandshortenthereactiontime．Theconversionofmonoethanohminecallreach95％onLheaverage,theselectivi每ofsodiumsaltofglycineis99％。Thereac嫩xlmixtureiSneutralizedwithhydroddorieacidtoobtainthemixtureofglyc

8、incandsodiumchloride，InthispapertheeleetrodialysisandmembraneseparationtechnoMgyisir翻oduccd协辩翔l察osodiumchloridefrommix嫩are泌getpure搭yd矬eafterbeingeondense疽WeresearchtheeffectofvariedfluxonlimilxxtelectricalCUI'端蛙time．separatingrateofsodiumchlorideandenergyCOtLsuming．Satisfiedresults8矬o

9、btain