| 双极性膜电渗析法制备γ-氨基丁酸 |
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| 引用本文： | 沈萌,陈劲春,杨晓英.双极性膜电渗析法制备γ-氨基丁酸[J].膜科学与技术,2012,32(1):111-115. |
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| 作者姓名： | 沈萌 陈劲春 杨晓英 |
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| 作者单位： | 北京化工大学生命科学与技术学院,北京,100029 |
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| 基金项目： | 中央级工艺性科研院所基本科研业务费专项基金 |
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| 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).
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| 关 键 词： | 双极性膜 电渗析 γ-氨基丁酸 |
Separation of GABA from its potassium salt by bipolar membrane electrodialysis method |
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| SHEN Meng
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CHEN Jinchun
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YANG Xiaoying.Separation of GABA from its potassium salt by bipolar membrane electrodialysis method[J].Membrane Science and Technology,2012,32(1):111-115. |
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| Authors: | SHEN Meng CHEN Jinchun YANG Xiaoying |
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| Affiliation: | (College of Life Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China) |
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| Abstract: | 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. |
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| Keywords: | bipolar membrane electrodialysis GABA |
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