高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (3): 460.

• 研究简报 • 上一篇    下一篇

HDEHP 的界面性质及萃取动力学机理

刘长欣1, 崔玉1, 杨永会2, 孙思修2, 孙国新3   

  1. 1. 山东建筑材料工业学院应化系, 济南, 250022;
    2. 山东大学化学系;
    3. 中国科学院上海原子核所
  • 收稿日期:1996-05-27 出版日期:1997-03-24 发布日期:1997-03-24
  • 通讯作者: 崔玉.
  • 作者简介:刘长欣, 男, 48岁, 副教授
  • 基金资助:

    国家自然科学基金

Interfacial Activity of HDEHP and Its Kinetics Mechanism of Nickel Extraction

LIU Chang-Xin1, CUI Yu1, YANG Yong-Hui2, SUN Si-Xiu2, SUN Guo-Xin3   

  1. 1. Department of Applied Chemistry, Shandong Institute of Building Materials, Jinan, 250100;
    2. Dept.Chem, Shandong Univ., Jinan;
    3. Shanghai Institute of Nuclear Sci., Chinese Academy of Sci.
  • Received:1996-05-27 Online:1997-03-24 Published:1997-03-24

关键词: 界面活性, 稀释剂, 萃取动力学, 二(2-乙基已基)磷酸(HDEHP)

Abstract: The interfacial tension was determined with drop method for bis(2-ethylhexyl)phosphoric acid(HDEHP) in different diIuents, such as benzene, toluene, cycl0hexane and n-hexane, and the surface excess was calculated according to the different adsorption isotherms.The extraction kinetics of Ni(Ⅱ) with HDEHPhas been studied and an interfacial reaction mechanism was suggested.The relationship between the interfacial structure and this mechanism was discussed.The interfacial activity of extractant and the effect of diluents give a strong evidence qualitatively for supporting this mechanism.

Key words: Interfacial activity, Diluent, Extraction kinetics, HDEHP

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