Improvement of Ce on performance of Pb-Ag-Ca-Sr quaternary alloy anode plate for zinc electrowinning
LI Yan-long1, LI Yin-li1, CHEN Xiang-dong2, JIAO Xiao-bin2, WANG Chang-zheng1, WANG Hong-wei1
1. Institute of New Materials and Metallurgy, Northwest Research Institute of Mining and Metallurgy, Baiyin 730900, Gansu, China; 2. Baiyin Nonferrous Metals Group Co., Ltd., Baiyin 730900, Gansu, China
Abstract：Pb-Ag-Ca-Sr quaternary alloy is a widely used anode material for zinc electrolysis because of its good mechanical properties, electrical conductivity and corrosion resistance, but uneven distribution of alloying elements, unstable performance, high loss of rare metals and high production cost restrict its wide application in zinc electrowinning anode. The addition of rare earth elements can improve the property of anode materials. The effect of rare earth Ce on the microstructure, mechanical properties, conductivity and corrosion resistance of Pb-Ag-Ca-Sr alloy was studied by melting. The result showed that the grain size of Pb-Ag-Ca-Sr quaternary alloy was obviously refined by adding 0.04% Ce. The tensile strength was increased by 9%, the yield strength was increased by 23%, the electrical conductivity was increased by 1.75%, and the corrosion resistance was also improved obviously. The effect of rare earth Ce on comprehensive properties of Pb-Ag-Ca-Sr quaternary alloy anode material was stronger than that of rolling process.
李彦龙, 李银丽, 陈向东, 焦晓斌, 王长征, 王宏伟. 稀土Ce对锌电积用Pb-Ag-Ca-Sr四元合金阳极板性能的改进[J]. 中国冶金, 2021, 31(8): 127-131.
LI Yan-long, LI Yin-li, CHEN Xiang-dong, JIAO Xiao-bin, WANG Chang-zheng, WANG Hong-wei. Improvement of Ce on performance of Pb-Ag-Ca-Sr quaternary alloy anode plate for zinc electrowinning[J]. China Metallurgy, 2021, 31(8): 127-131.
2021, Vol. 31 
