Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (5): 532-536. Previous Articles    


顾彦龙, 石峰, 邓友全   

  1. 中国科学院兰州化学物理研究所, 绿色化学与催化中心, 兰州, 730000
  • 投稿日期:2003-08-28 修回日期:2003-10-30 发布日期:2014-02-18
  • 通讯作者: 邓友全,
  • 基金资助:

Room Temperature Ionic Liquid as Leaching Reagent for Separation of the Solid Mixture of Taurine and Sodium Sulfate

GU Yan-Long, SHI Feng, DENG You-Quan   

  1. Center for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000
  • Received:2003-08-28 Revised:2003-10-30 Published:2014-02-18

The solubility of taurine in various 1,3-dialkylimidazolium ionic liquids was approximately determined. The taurine is well soluble in 1-butyl-3-methylimidazolium chloride ([C4MIm]Cl) ionic liquid but Na2SO4 is not, therefore, the leaching separation of the solid mixture of taurine and sodium sulfate could be actualized by using [C4MIm]Cl as the leaching reagent. After leaching, the taurine solid can be separated by dispersing the [C4MIm]Cl ionic liquid solution in ethanol. The separation yield could be up to 98.5% (99.5% purity). The leaching separation process simplified the separation of taurine and sodium sulfate, and the ionic liquid could be reused for several times without a loss of the leaching ability.

Key words: ionic liquid, leaching separation, taurine, sodium sulfate