中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (3): 49-53.

• 研究论文 • 上一篇    下一篇

BTMPPA与HPMBP协同萃取稀土元素(Ⅲ)的研究

孙静, 李德谦   

  1. 中国科学院长春应用化学研究所稀土化学与物理开放实验室 长春 130022
  • 收稿日期:1993-08-30 修回日期:1993-12-22 出版日期:1994-06-10 发布日期:1994-06-10
  • 基金资助:
    国家自然科学基金资助项目

Study of Synergistic Extraction of Rare Earth Elements(Ⅲ )with BTMPPA and HPMBP

Sun Jing, Li Deqian   

  1. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinses Academy of Sciences, Changchun 130022
  • Received:1993-08-30 Revised:1993-12-22 Published:1994-06-10 Online:1994-06-10

PDF

313

被引次数

5

摘要： 研究了二(2,4,4-三甲基戊基)膦酸(BTMPPA,HL)和1-苯基-3-甲基-4-苯甲酰基吡唑酮-5(HPMBP,HA)的苯溶液在不同矿物酸介质中,对稀土元素(Ⅲ)的AA类协同革取。以Nd3+、Yb3+为例,研究了BTMPPA-HPMBP苯溶液从HNO3介质中协同萃取稀土元素(Ⅲ)的机理。用斜率法确定了协萃配合物组成为Nd(HL2)2、Yb(HL2)2·A·HA,计算了协萃平衡常数。

关键词: BTMPPA, HPMBP, 稀土元素(Ⅲ), 协同萃取

Abstract: The synergistic extraction of rare earth elemcnts(Ⅲ)including La,Nd,Gd,Er,Dy, Yb and Y from aqueous mineral acid (H2SO4,HCl,HNO3,) with benzene solution of bis (2,4,4-trimethylpentyl) phosphinic acid (BTMPPA,HL) and 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (HPMBP,hA) has been studied. The compositions of the extracted complexes and the mechanism of the synergistic extraction have been determined by the methods of slope and constant molarity. The equilibium constants have been calculated.

Key words: BTMPPA, HPMBP, rare earth element, synergistic extraction

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