应用化学 ›› 1989, Vol. 0 ›› Issue (5): 73-76.

• 研究简报 • 上一篇    下一篇

硫氰酸甲基三烷基季铵盐萃取Co(Ⅱ)的动力学

高自立, 孙思修, 董金华, 盖会法, 沈静兰   

  1. 山东大学化学系 济南
  • 收稿日期:1988-04-13 修回日期:1989-03-11 出版日期:1989-10-10 发布日期:1989-10-10

KINETICS OF SOLVENT EXTRACTION OF COBALT(Ⅱ) BY QUATERNARY AMMONIUM THIOCYANATE

Gao Zili, Sun Sixiu, Dong Jinhua, Gai Huifa, Shen Jinglan   

  1. Department of Chemistry, Shandong University, Jinan
  • Received:1988-04-13 Revised:1989-03-11 Published:1989-10-10 Online:1989-10-10

摘要: 有关Co(Ⅱ)、Ni(Ⅱ)萃取分离的研究一直受到人们的重视。Preston[1]报导了硫氰酸季铵盐(Q+SCN-)萃取Co(Ⅱ)、Ni(Ⅱ)的平衡研究,认为Co(Ⅱ)的萃合物组成为Q2Co(SCN)4.本文用上升液滴法技术[2]考察了Co(Ⅱ)/0.10mol·L-1SO42-/QSCN-煤油体系在298±1K条件下萃取速率R与CoSO4、SO42-和QSCN浓度的关系,确定了正向初始萃取速率方程,拟定了速控步骤。

关键词: 钴(Ⅱ)萃取动力学, 硫氰酸甲基, 三烷基季铵盐

Abstract: The kinetics and mechanism of the extraction of Co(Ⅰ) from sulphate solution withquatornary ammonium thiocyanate (QSCN, Q-CH3 N [CH2(CH2)6-10CH3]3) in kerosenewere studied by means ot single drop method at 298K.

Key words: Cobalt(Ⅱ), Extraction kinetics, Quaternary ammonium thiocyanate