Leaching separation of taurine and sodium sulfate solid mixture using ionic liquids

被引：17
|
作者：
Gu, YL [1 ]
Shi, F [1 ]
Yang, HZ [1 ]
Deng, YQ [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Green Chem & Catalysis, Lanzhou 730000, Peoples R China
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2004年 / 35卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ionic liquid; leaching separation; taurine; solubility; sodium sulfate;
D O I：
10.1016/j.seppur.2003.08.004
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The solubilities of taurine (2-aminoethanesulfonic acid (H2NCH2CH2SO3H)) and sodium sulfate in a series of room temperature ionic liquids were examined, and a novel and greener separation method combined with chlorinated dialkylimidazolium ionic liquid as leaching reagent and organic solvent as precipitating reagent was developed. Using such process, selective separation of taurine from solid mixture containing large amount of sodium sulfate could be realized with 67-98.5% of single separation yield. The recycling of ionic liquid and organic solvent used in this separation process is possible. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 159
页数：7
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