Corrosion Behavior of Pb-Ca-Sn Electrodes for Copper Electrowinning

被引：3
作者：
Yuan, Xuetao [1 ]
Lv, Xudong [1 ]
Hua, Zhiqiang [1 ]
Wang, Lei [1 ]
Li, Tao [1 ]
机构：
[1] Beijing Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
来源：
ADVANCES IN METALLURGICAL AND MINING ENGINEERING | 2012年 / 402卷
关键词：
copper electrowinning; anodic polarization; corrosion rate; ALLOYS; LEAD;
D O I：
10.4028/www.scientific.net/AMR.402.349
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Anodic polarization behavior of ternary alloy Pb-0.08%Ca-1%Sn is studied by potentiodynamic polarization measurements, corrosion rate, the products on electrode surface after polarization, and microstructure of anode mud after polarization in electrowinning cell. The results show that Pb-Ca-Sn anode is easy to be passivated in electrolyte for copper electrowinning, the maintaining passivity current density is 97.72 mu A.cm(-2) and the corrosion products on the surface of Pb-Ca-Sn electrode present loose scaly, being composed of alpha-PbO2, beta- PbO2 and PbSO4 after polarization.
引用
收藏
页码：349 / 353
页数：5
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