L－半胱氨酸的电化学还原制备（Ⅰ）  

Preparation of L-Crystein via Electrochemical Reduction(Ⅰ)

作　　者：魏守强[1] 刘瑛[1] 张淑梅 于德龙[1] 

机构地区：[1]沈阳工业学院专科学校化工系

出　　处：《沈阳化工》1996年第2期9-11,共3页

摘　　要：研究了包括电极材料、电解方式和电流密度在内的几个因素对Ｌ－胱氨酸电化学还原为Ｌ－半胱氨酸的影响。结果表明，经处理后的Ｓｎ能明显地提高反应速度；恒电位电解可使Ｌ－半胱氨酸的产率和电流效率分别达到９８％和１００％；恒电流电解的适宜电流密度为１２～１６Ａ·ｄｍ－３，产率和电流效率各为９７．６～９８；５％和７０～７８％；分段控制电流法的产率为９６．４％，电流效率为９２％。ffects of some factors on the electrochemical reaction of L-crystine have been investigated.It is found that the reaction rate of L-crystine on the Sn electrod treated becomes obviously higher.The yield of L-crystine and current efficiency reach 98% and 100% respectively by use of controlled potential electrolysis. And under the condition of controlled current electrolysis (12～16A.dm-2) the yields (97.6～98. 6%) of L-crystein and the current efficiencies (70～78%) are obtained. With the electrolysis of stage-controlled current the yield of L-crystein is 96.4% and the current efficiency is 92 %.

关 键 词：L-胱氨酸 L-半胱氨酸 电化学还原 氨基酸 

分 类 号：TQ246.37[化学工程—有机化工]