伯胺N1923和三苯基氧化膦萃取金(Ⅲ)的动力学 Ⅰ.一元萃取剂体系萃取AuCl_4^-

The Extraction Kinetics of Gold(Ⅲ)by Primaryamine N1923 and Triphenylphosphine Oxide Ⅰ. The Extraction of AuCl_4^- in a System of Single-Extractant

研究了伯胺N1923和三苯基氧化膦(TPPO)两个一元萃取剂体系从盐酸介质中萃取AuCl_4^-的动力学.认为两体系的萃取速率均受界面化学反应控制;得到298K时两体系萃取反应的速率常数;计算出萃取反应的活化能.

The kinetics and mechanism of the extraction of gold (Ⅲ) by primaryamine N1923 or triphenylphosphine oxide (TPPO) in chloroform from hydrochloric acid have been Studied in a Stirred Lewis' cell. The experimental results showed that the chemical reactions at the interface are rate-determining steps. The rate constants and activation energies of the reactions were calculated.