电积锌工业中,目前广泛使用Pb-(0.8~ 1.0) %Ag合金作为阳极,其优势地位尚无法完全被取代,Al,Ca,Sr,RE等元素能较好地提升铅银合金的综合性能,并且能弥补银的损失.分别在ZnSO4-H2SO4和ZnSO4-MnSO4-H2 SO4体系中研究了Pb-0.15%Ag,Pb-0.15%Ag-0.11%Al,Pb-1.00%Ag,Pb-0.30%Ag-0.06 %Ca-0.05%Ce的阳极腐蚀速率以及后3种阳极在ZnSO4-H2 SO4体系极化48 h阳极氧化膜的形貌和组成.结果表明:在以上2种体系中Pb-0.15%Ag-0.11%Al的耐蚀性均要好于Pb-0.15%Ag,但较Pb-1.00%Ag,Pb-0.30%Ag-0.06 %Ca-0.05%Ce合金的差.
参考文献
[1] | Aaron Felder;R. David Prengaman.Lead Alloys for Permanent Anodes in the Nonferrous Metals Industry[J].JOM,200610(10):28-31. |
[2] | 衷水平 .锌电积用铅基多孔节能阳极的制备、表征与工程化试验[D].中南大学,2009. |
[3] | W. Zhang;G. Houlachi.Electrochemical studies of the performance of different Pb–Ag anodes during and after zinc electrowinning[J].Hydrometallurgy,20102(2):129-135. |
[4] | 李霞;尚鸿远.铅-钙-铝合金的研制及推广应用[J].甘肃冶金,2002(4):15-17. |
[5] | Weiguo Wang;Hong Guo.Effects of thermo-mechanical iterations on the grain boundary character distribution of Pb-Ca-Sn-Al alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20071/2(1/2):155-162. |
[6] | 衷水平;LAI Yan-qing;蒋良兴;TIAN Zhong-liang;李劼;LIU Ye-xiang.锌电积用Pb-Ag-Ca-Sr四元合金阳极的阳极极化行为[J].中国有色金属学报,2008(7):1342-1346. |
[7] | Ivanov I.;Stefanov Y..Insoluble anodes used in hydrometallurgy Part I. Corrosion resistance of lead and lead alloy anodes[J].Hydrometallurgy,20002(2):109-124. |
[8] | Ivanov I.;Stefanov Y..Insoluble anodes used in hydrometallurgy Part II. Anodic behaviour of lead and lead-alloy anodes[J].Hydrometallurgy,20002(2):125-139. |
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