亚氨基二乙酸母液的电渗析脱盐实验  

Removal of Salt from Iminodiacetic Acid Solution with Electrodialysis

作　　者：沈江南[1] 计伟荣[1] 徐寅初 高从堦 

机构地区：[1]浙江工业大学化材学院,杭州310014 [2]杭州赛菲膜分离技术有限公司,杭州310012 [3]国家液体膜分离工程研究中心,杭州310012

出　　处：《农药》2008年第10期715-717,共3页Agrochemicals

基　　金：国家重点基础研究发展规划(973计划)资助项目(2003CB15706);浙江省博士后基金择优资助项目(20060803)

摘　　要：在对亚氨基二乙酸母液(IDA)进行调等电点的基础上,采用电渗析技术对该母液进行了脱盐的实验研究,考察了电渗析运行电压、料液循环流量等工艺参数对电渗析脱盐工艺过程的影响。结果表明:均相离子交换膜电渗析技术能有效脱除亚氨基二乙酸母液中的盐,而且具有较高的亚氨基二乙酸回收率,在料液流量为300L/h、运行电压为30V时,IDA回收率为92.4%。On the basis of the regulating isoelectric point of the iminodiacetic acid（IDA） solution, separation of salt from iminodiacetic acid solution with electrodialysis is studied, the effects of operation voltage, feed flow on the electrodialysis desalination process are investigated. As a result, the salts in th IDA solution could be removed effectively by homogeneous ion exchange membrane electrodialysis, and the recovery of the IDA is about 92.4% at the velocity of 300 L/h and voltage of 30 V.

关 键 词：亚氨基二乙酸 电渗析 脱盐 回收率 

分 类 号：O621.2[理学—有机化学]