高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (7): 956.

• 论文 • 上一篇    下一篇

HDEHP和HEHEHP萃取Au(Ⅰ)的研究

郭梁芹, 高自立, 孙思修, 沈静兰   

  1. 山东大学化学系, 济南, 250100
  • 收稿日期:1997-07-16 出版日期:1992-07-24 发布日期:1992-07-24
  • 通讯作者: 高自立

A Study of the Extraction of Gold(Ⅰ) with HDEHP or HEHEHP

GUO Liang-qin, GAO Zi-li, SUN Si-xiu, SHEN Jing-lan   

  1. Department of Chemistry, Shandong University, Jinan, 250100
  • Received:1997-07-16 Online:1992-07-24 Published:1992-07-24

PDF (PC)

被引次数

1

摘要： 在298±1K时以恒界面搅拌池法考察了Au(I)/(Na,H)Cl、CS(NH2)2/HDEHP(或HEHEHP)-煤油体系的萃取平衡和动力学过程.确定了萃取平衡机理为阳离子的交换,动力学过程的速控步骤可能发生在两相交界处,属于界面反应。

关键词: Au(Ⅰ), 硫脲, 萃取平衡和动力学, HDEHP, HEHEHP

Abstract: The extraction equilibrium and kinetics of glod (I) from aqueous thiourea and sodium chloride/di (2-ethylhexyl) phosphoric acid(HDEHP) or 2-ethylhexyl 2-ethylhexyl phosphonic acid (HEHEHP) in kerosene were investigated at 298±1 K.The mechanism of extraction equilibrium determined is the exchange of cation.The rate-determining step of kinetics may be occur at the interface between HDEHP and HEHEHP and belongs to interfacial reaction.

Key words: Au(Ⅰ), Thiourea, Extraction equilibrium kinetics, HDEHP, HEHEHP

TrendMD: