Mixed potential oscillations in the dissolution of galena in ferric sulfate solution

被引：0
|
作者：
Li Zhou
Heping Li
机构：
[1] Chinese Academy of Sciences,Institute of Geochemistry
来源：
Mining, Metallurgy & Exploration | 2008年 / 25卷
关键词：
Oscillation reaction; Galena; Oxidative dissolution; Mixed potential;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The kinetics of the dissolution of galena was studied by monitoring the mixed potential of a galena electrode in ferric sulfate solutions. The results show that the mixed potential of the galena electrode fluctuated with time in a regular pattern in a 0.1 mol/L Fe2(SO4)3 solution of pH 1.66 and in a 0.01 mol/L Fe2(SO4)3 solution of pH 2.33 at 35°C. The periodic accumulation and precipitation of lead ions at the galena electrode surface and the cyclical variation in pH at the galena electrode surface caused the oscillation phenomena.
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页码：211 / 214
页数：3
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