高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (4): 336.

• 研究论文 • 上一篇    下一篇

聚乙烯吡咯啉酮-(NH4)2SO4-H2O液-液、液-固萃取体系

李步海, 王克富   

  1. 中南民族学院化学系
  • 收稿日期:1988-07-16 出版日期:1990-04-24 发布日期:1990-04-24
  • 通讯作者: 李步海

The Liquid-Liquid and Liquid-Solid Extraction System of Polyvinyl Pyrrodidone- (NH4)2SO4-H2O

Li Buhai, Wang Kefu   

  1. Department of Chemistry, South Central Institute for National Minorities, Wuhan
  • Received:1988-07-16 Online:1990-04-24 Published:1990-04-24

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摘要： 研究了聚乙烯吡咯啉酮水溶液在(NH4)2SO4存在下分成液-液或液-固两相的条件和水溶性整合剂及金属离子整合物在该体系两相间的分配行为。实现了Zr(Ⅳ)-La(Ⅲ)的定量萃取分离,初步探讨了聚乙烯吡咯啉酮相的萃取机理。

关键词: 萃取, 聚乙烯吡咯啉酮, 锆, 镧

Abstract: The aqueous solution of polyvinyl pyrrodidone can be separated into two liquid or a liquid and a solid phases in the presence of (NH4)2SO4. The conditions of phase separation were found. The distribution behaviour of water-soluble ligands and their metal chelates between the two phases were investigated. The quantitative extraction separation of Zr(Ⅳ )-La( Ⅲ ) was carried out. The extraction machanism for PVPphases was also studied.

Key words: Extraction, Poly vinyl pyrrodidone, Zirconiun, Lanthanum

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