摘要
通过对双极性膜电渗析转化γ-氨基丁酸(GABA)过程的研究,确定了三隔室电渗析工艺的可行性,并利用双极性膜电渗析装置,将γ-氨基丁酸钾盐转化为GABA和KOH.最终结果表明,经三隔室双极性膜电渗析转化和冷却结晶后,可以得到纯度为99%以上的γ-氨基丁酸结晶以及2.5%以上的粗氢氧化钾溶液,对于粗品γ-氨基丁酸溶液双极性膜电渗析转化过程,平均电流效率在60%以上,电耗为2kW.h/(kg GABA).
The technical feasibility of the production of GABA from its potassium salt by means of bipolar membrane electrodialysis（BMED） method is investigated. By using a three-compartment BMED, GABA and KOH from its salt can be produced. The results show that, after BMED, GABA solution and up to 2.5% KOH can be obtained. When the GABA solution is cooled down, GABA crystal can be collected. The purity of GABA can exceed 99%. And the average electric current efficiency of the process is above 60%, the electric energy consumption is approximately 2 kW · h per kg of GABA.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2012年第1期111-115,共5页
Membrane Science and Technology
基金
中央级工艺性科研院所基本科研业务费专项基金项目(K-JBYWF-2009-G09)
