高等学校化学学报

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (6): 479.

• 研究论文 • 上一篇    下一篇

萃取热力学研究(Ⅰ)——PMBP-DPSO-Er(ClO4)3-C6H5CH3体系

陈金榜, 彭立娥, 梁利源   

  1. 北京大学技术物理系
  • 收稿日期:1983-12-20 出版日期:1985-06-24 发布日期:1985-06-24

Thermodynamic Studies of Extraction(Ⅰ) --PMBP-DPSO-Er (ClO4)3 -C6H5CH3 Systems

Chen Jinbang, Peng Lie, Liang Liyuan   

  1. Department of Technical Physics, Peking University, Beijing
  • Received:1983-12-20 Online:1985-06-24 Published:1985-06-24

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摘要： 本文研究了1-苯基-3-甲基-4-苯甲酰基吡唑啉酮-5(PMBP)与二苯基亚砜(DPSO)的甲苯溶液在高氯酸介质中对铒(Ⅲ)的协同萃取,测得了萃合物的组成和各萃取反应的平衡常数及热力学函数增量.

Abstract: The extraction of Europium (Ⅲ) from perchloric acid solution with mixtures of l-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (PMBPor HA) and diphenyl sulfoxide (DPSOor B) in toluene has been investigated.The formulas of the extracted species have been shown to be ErA3·HA, ErA3·Band ErA3·2B. Their extraction equilibrium constants and thermodynamic parameters of the enthalpy change (ΔH) Gibbs free energy change (ΔG) and entropy change (ΔS) have been calculated at 298.2K.

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