湿法冶金Issue(4)：269-273,5.DOI:10.13355/j.cnki.sfyj.2014.04.06
Au-Cl --SO2-3-H2O 系的电化学行为研究
Electrochemical Behaviors of Au-Cl--SO2 -3 -H2 O System
聂华平 1张忠堂 1王日 2黄绍勇 2王莉红1
作者信息
- 1. 江西理工大学冶金与化学工程学院，江西赣州 341000
- 2. 江西铜业股份有限公司贵溪冶炼厂，江西贵溪 335424
- 折叠
摘要
Abstract
The Electrochemical reactions and ε-pH formulas of Au-H2 O system ,Au-Cl--H2 O system and H2 SO3-H2 O system were determined based on the possible electrochemical reactions and components thermo-dynamic data in Au-Cl--SO2 -3 -H2 O system .The ε-pH diagrams of these systems and overlapedε-pH diagram of Au-Cl--H2 O system and H2 SO3-H2 O system were charted based on thermo-dynamic data at 298 K .The thermo-dynamic stability regions of some substances and the possibility of chemical reactions under the conditions of different pH and potential were determined . The results show that by dealing with chloride ,the potential of gold can be decreased obviously ,and the potential of H2 SO3 system is significantly lower than the that of Au-Cl--H2 O system .And H2 SO3 can be using for reducing gold in liquid at the pH of 1 .75 .关键词
金/电化学/热力学/电位-pH图Key words
gold/electrochemical/thermo-dynamics/potential-pH diagram分类
矿业与冶金引用本文复制引用
聂华平,张忠堂,王日,黄绍勇,王莉红..Au-Cl --SO2-3-H2O 系的电化学行为研究[J].湿法冶金,2014,(4):269-273,5.
