纳滤膜对氨基酸的分离研究  

Nanofiltration Process of Phenylalanine and Aspartic Acid Aqueous Solution

作　　者：营爱玲[1] 王建[1] 王晓琳[2] 

机构地区：[1]淮海工学院化工系,连云港222005 [2]清华大学化工系,北京100084

出　　处：《北京科技大学学报》2004年第6期641-644,共4页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.29876018)

摘　　要：选择NTR7450膜对L-苯丙氨酸和L-天冬氨酸水溶液进行了纳滤分离过程研究，讨论了不同pH下氨基酸的透过特性，pH=5～8时，NTR7450膜对L-苯丙氨酸和L-天冬氨酸的截留率分别为0和90％．根据实验结果进行了模拟计算．结果表明，通过调节pH值，L-苯丙氨酸和L-天冬氨酸可以被有效地分离。The permeation experiments of L-phenylalanine and L-aspartic acid aqueous solution were carried out with NTR7450 membrane. When pH=5~8 the rejections to L-phenylalanine and L-aspartic acid by NTR7450 membrane are about 0 and 90%, respectively. The concentration and separation process of phenylalanine and aspartic acid solution was simulated. The results showed that L-phenylalanine and L-aspartic acid can be separated satisfactorily by adjusting the pH value.

关 键 词：氨基酸 分离 纳滤 

分 类 号：TQ028.8[化学工程]