中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (2): 77-80.

• 研究论文 • 上一篇    下一篇

PMBP为载体的乳状液膜提取钪的研究

李亚栋, 李智勇, 郑化桂, 李龙泉, 周移   

  1. 中国科学技术大学应用化学系 合肥 230026
  • 收稿日期:1993-06-08 修回日期:1993-10-26 出版日期:1994-04-10 发布日期:1994-04-10

Extraction of Sc(Ⅲ) by ELM Method Using PMBP as Caaarrier

Li Yadong, Li Zhiyong, Zheng Huagui, Li Longquan, Zhou Yi   

  1. Department of Applied Chemistry, University of Science and Technology of China, Heifei 230026
  • Received:1993-06-08 Revised:1993-10-26 Published:1994-04-10 Online:1994-04-10

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311

被引次数

1

摘要： 研究了以1-苯基-3-甲基-4-苯甲酰基吡唑酮-5(PMBP)为流动载体的乳状液膜(ELM)法提取钪,确定最佳液膜体系组成为0.4%PMBP-3% Span80-5%液体石蜡-煤油-3mol/L HCl,Roi=1:1(油内比).Rwe(水乳比)可达20:1.用该体系对钪与混合稀土进行分离,钪的回收率可达95.5%,分离系数βSC/RE=32.0。

关键词: 钪, 混合稀土, 提取, 分离, 液膜法, 苯基甲基苯甲酰基吡唑酮

Abstract: Scandium(Ⅲ) was extracted by the emulsion liquid membrane (ELM)method using 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-on as a carrier. The extraction rate of Sc(Ⅲ) was more than 95.5% and the separation factor for Sc(Ⅲ) and mixed rare earths βSC/RE was 32.0. The optimum conditions for the extraction as follows:pH=1.7～3.8 for feed liquid, PMBP 0.4%, surfactant Span80.3%, mixed solution of liquid paraffin and kerosene 5%, concentration of HCl in the internal phase 3mol/L, Roi=1:1,Rwe=20:1.

Key words: scandium, mixed rare earth, extraction, separation, emulsion liquid membranemethod, benzoyl-methyl-phenyl-pyrazolidone

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