CIESC Journal

• 化工学报 • 上一篇    下一篇

中性冠醚载体在乳化液膜技术中的应用

李伟宣,施亚钧   

  1. 中国科学院化工冶金研究所,华东化工学院化学工程研究所 北京100080 ,上海200237
  • 出版日期:1992-02-25 发布日期:1992-02-25

Application of Macrocyclic Ether as Carrier in Emulsion Liquid Membrane Technology

Li Weixuan Shi Yajun (Institute of Chemical Metallurgy,Academia Sinica, Beijing 100080) (Chemical Engineering Research Center, East China Institute of Chemical Technology, Shanghai 200237)   

  • Online:1992-02-25 Published:1992-02-25

摘要: 在大环多元醚应用方面,实现了以DB-18-C-6为载体,乳化液膜法分离钾、钠离子的工艺.实验结果表明,内水相试剂、外水相中阴离子的性质、膜相溶剂以及冠醚与金属阳离子的匹配均对乳化液膜的提取效果有极大的影响.扩散控制的传质模型与实验结果有较好的一致性.

Abstract: By using DB-18-C-6 as a carrier, K+ and Na+ were separated by emulsion liquid membrane. Such a liquid membrane system has evolved to a practical stage in a new area of the application of macrocyclic ether. Experimental results showed that the extractibility of emulsion liquid membrane depended on the reagent in the inner aqueous phase, the anion in the outer aqueous phase, membrane solvent, and the crown ethers pairing with the metal cation. A mass transfer model of diffusion was proposed and agreed with the experimental results well.