高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (2): 177.

• 论文 • 上一篇    下一篇

HBTMPTP与伯胺N1923对稀土元素(Ⅲ)的协同萃取

孔薇1, 王春1, 李德谦1, 张秀英2, 王朝敏2   

  1. 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;
    2. 河南师范大学化学系, 新乡, 453002
  • 收稿日期:1996-01-22 出版日期:1997-02-24 发布日期:1997-02-24
  • 通讯作者: 李德谦.
  • 作者简介:孔薇, 女, 24岁, 硕士研究生
  • 基金资助:

    国家攀登计划!稀土科学基础研究

Studies on Synergistic Extraction of Rare Earths(Ⅲ) with HBTMPTP and Primary Amine N1923

KONG Wei1, WANG Chun1, LI De-Qian1, ZHANG Xiu-Ying2, WANG Chao-Min2   

  1. 1. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022;
    2. Department of Chemistry, He'nan Normal University, Xinxiang, 453002
  • Received:1996-01-22 Online:1997-02-24 Published:1997-02-24

摘要: 研究了二(2,4,4-三甲基戊基)单硫代膦酸(HBTMPTP,HL)和伯胺N1923的正己烷溶液从硫酸介质中对稀土元素(Ⅲ)的协同萃取.并以La(Ⅲ)为例,用斜率法、恒摩尔法和饱和法确定了协萃配合物的组成为(RNH3)3L2La(SO4)2,计算了协萃配合物的生成常数及热力学函数,观测了协萃配合物的IR谱.

关键词: HBTMPTP, 伯胺N1923, 稀土(Ⅲ), 协同萃取

Abstract: The synergistic extraction of rare earths (Ⅲ) with binary systems containing HBTMPTPand primary amine N1923 from sulfuric acid medium was observed. The synergistic extraction factor(R) decreased with increasing atomic number of lanthanides.Through the methods of slope analysis, constant mole and saturation titration, the synergistic extraction stoichiometry was obtained.The thermodynamic function was calculated.The IRspectra of the saturated synergistic extraction completely confirmed the mechanism.

Key words: HBTMPTP, Primary amine N1923, Rare earths(Ⅲ), Synergistic extraction

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