文献类型：期刊文献

中文题名：季铵盐从氰化液中萃取金的宏观动力学

英文题名：THE STUDIES OF MACRO-KINETICS ON THE EXTRACTION OF GOLD FROM CYANIDE SOLUTION BY TRIALKYL-METHYL AMMONIUM HYDROXIDE

作者：傅建顺[1];周展云[1]

机构：[1]华东化工学院

年份：1990

卷号：10

期号：1

起止页码：46

中文期刊名：矿冶工程

外文期刊名：Mining and Metallurgical Engineering

收录：CSTPCD;;北大核心:【北大核心1992】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：金;萃取;季铵盐;动力学;铵盐

外文关键词：Trialkyl-methyl ammonium hydroxide, Extraction kinetics, Gold, Cyanide solution

摘要：本文采用恒界面池(Lewis池)研究了氢氧化三烷基甲胺在碱性氰化液中苹取金的宏观动力学特征。通过对实验结果及理论分析的比较判定了苹取反应的动力学过程为扩散控制,且扩散阻力集中在水相。实验条件下萃取反应的宏观动力学速率方程可由下式表示:
In this paper the macro-kinetics of gold extraction from alkaline cyanide solution by trialkyl-methyl ammonium hydroxide in kerosene has been studied in a Lewis cell. A comparison between the experimental results and the theoretical analysis has been made and it was concluded that the process of gold extraction is controlled by diffusion and the resistance of diffusion exists mainly in aqueous phases. The empirical rate equation under the laboratroy conditions is found to be -(dc_(Au(w))/(dt)=0.91a·Re^(0.76)exp(-3920/RT) (C_(Autw)-C_(Auw)~e)