Influence of arsenic,antimony and cobalt impurities on the cathodic process in zinc electrowinning

被引：0
|
作者：
YU XiaoHua1
2Technology Center of Yunnan Metallurgy Group Co.
机构：
来源：
Science China Chemistry | 2010年 / 03期
基金：
中国国家自然科学基金;
关键词：
zinc electrowinning; arsenic; antimony and cobalt; cathodic polarization curves; kinetic equation and parameters;
D O I：
暂无
中图分类号：
O646.54 [电极过程];
学科分类号：
081704 ;
摘要：
By means of an electrochemical study,the influence of arsenic,antimony and cobalt on cathodic polarization in the zinc electrowinning process,the associated kinetic equations and parameters,and the polarization mechanism have been studied.The results show that the experimental values of the kinetic parameters are in accord with the theoretical values in the ZnSO4/H2SO4 solution with a single impurity is added.In contrast,the charge transfer coefficient α is smaller than the theoretical value in the ZnSO4/H2SO4 solution when the three impurities are added together.
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页码：676 / 681
页数：6
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