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1、浙江大學(xué)碩士學(xué)位論文用一乙醇胺催化合成甘氨酸及其分離研究姓名:盧祖國申請學(xué)位級別:碩士專業(yè):化學(xué)工程指導(dǎo)教師:蔡振云2003.2.1辯糕大學(xué)碩士學(xué)位論交摘要本論文在總結(jié)了工攮上幾釋霄氯酸璧產(chǎn)工苗靜基磣一匙,掇痿了靂一己髂胺在焦氧化鈉的堿滾中經(jīng)RaneyCu憾化輾化合成甘氨酸鈉,氍經(jīng)中黼。電滲析麒分離援縫曹氯羧靛薪王芑。本文建貴金蠖羨蛙RaneyCu,銼他測戇最健粒徑為200~-400勇,復(fù)擻淑壤掇制在挎0℃~1辨℃,艇威壓力維持在0.5~1.2MPa。通過多次黝對比實騷,}七較了在不嗣罐往裁鶼穩(wěn)楚下~Z。醇黢戇轉(zhuǎn)像率、越箋酸鑣翰選囂髓、愛瘦髓黎要熟時間以及催化劑本
2、身的熬復(fù)使用次數(shù)。實驗結(jié)聚淡明經(jīng)改性的RaneyCu倦化劑有雯好鶼潘瞧窺委彀靜談穗壽命,既褥離了一乙蘸黢靛轉(zhuǎn)傀擎器囂氮酸鐨瓣這擇毪,又繚短r愛痤霾謄瓣,鏷純裁贅?biāo)腩脡勖@孫浚馘主。一己囂藏熬平穩(wěn)轉(zhuǎn)識率勢95%以。E,甘氨陂鋪的選擇性為99%。愛擻舞夔混合匏耀然酸中翻,褥到髓氨酸弱氯億鈉她潼套物。本文糙出用漱滲蜇亍藤勢離韻方法狳轟混合耪中鼴鬣毪獺,濃縮褥委產(chǎn)瀑營氮黢。努剽氍交了不鞫漉螫瓣壤蔽彀浚、魄滲輯效霉、黢鼗攀竣及縫糕茨影嫡,蜜駿取褥了比較滿意魄結(jié)果,甘氨酸的收攀≥92%,縫廢可遮98%,實驗綣糶為中試和工業(yè)放大提供了可靠酶基礁。關(guān)繾誼茁§妊二五§≤:犍R粕。y
3、eh罐瀛魄滲耩簇棼;磊鼗旺太:警疆圭攀健豫囊ABSTRACTOnthebaseofsmnmarizationofseveralprocessestoindustriallysynthesizeglycin#,the搿lp釋studiesartewglycincpreparationprocess:monocthano
4、am/aciscontactedw/ththeaqueoussolutionofsodiumhydroxideandoxygenatedatthepresenceofRaneyCoppercatalysttoobtainsoditmqsaltofgl
5、yeine,whichisneulralizedwithhydrochloricacidandseparaledwithsodiumchlorideusingeleetrodialysisandmembraneseparationtechnologytoobtainpuregb潛ine.琢thisresearchRa魏eyCoppercatalystisdeveloped鍘搬nob/emetals。Theoptimalreactiontemperatureisbetween150’Caid190’C.爵.7MPa““l(fā)。IMPaforpressureand200~
6、400Inuforcatalystsize."Hu'oughanumberofeon矬astiveexpcriments,wecomparetireconversionrateofmonoethanolamine,辯妖穰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協(xié)辯翔l察osodiumchloridefrommix嫩are泌getpure搭yd矬eafterbeingeondense疽WeresearchtheeffectofvariedfluxonlimilxxtelectricalCUI'端蛙time.separatingrateofsodiumchlorideandenergyCOtLsuming.Satisfiedresults8矬o
9、btain