高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (10): 1293.

• 论文 • 上一篇    下一篇

聚乙二醇2000-吐温80-(NH4)2SO4-H2O液-固萃取体系

李步海, 瞿迎军, 李福元   

  1. 中南民族学院化学系, 武汉, 430074
  • 收稿日期:1990-08-19 出版日期:1991-10-24 发布日期:1991-10-24
  • 通讯作者: 李步海
  • 基金资助:

    国家自然科学基金

Liquid-Solid Extraction System of Polyethylene Glycol 2000-Tween80-(NH4)2SO4-H2O

Li Bu-hai, Qu Ying-jun, Li Pu-yuan   

  1. Department of Chemistry, South-Central College for Nationalities, Wuhan, 430074
  • Received:1990-08-19 Online:1991-10-24 Published:1991-10-24

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摘要： 研究了聚乙二醇2000-吐温80混合聚合物水溶液在(NH4)2SO4存在下分成液-固两相的条件和水溶性螫合剂及金属离子螫合物在两相间的分配行为,实现了Zr(Ⅳ)-Sc(Ⅲ)、Fe(Ⅲ)-Sc(Ⅲ)的定量萃取分离,初步探讨了混合聚合物相的萃取机理。

关键词: 萃取, 聚乙二醇2000, 吐温80

Abstract: In the presence of (NH4)2SO4the aqueous solution of the mixed polymers of polyethylene glycol (PEG)2000 and Tween 80 can be separated into liquid and solid phases. The conditions for the phase separation were found. The distribution behaviour of water-soluble ligands and their metal chelates between the two phases was studied. The quantitative extraction separation of Zr(Ⅳ)-Sc (Ⅲ) and Fe(Ⅲ)-Sc(Ⅲ) was achieved. The extraction mechanism for the phase of the mixed polymers was tentatively discussed.

Key words: Extraction, Polyethylene glycol2000, Tween80

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