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  5. A novel porous Pb-Ag anode for energy-saving in zinc electrowinning PartⅠ. Preparation and propertie

A novel porous Pb-Ag anode for energy-saving in zinc electrowinning PartⅠ. Preparation and propertie

来源 :第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg | 被引量 : 0次 | 上传用户：ywd56649
【摘 要】
：
A new type of porous Pb-0.8%Ag anode in zinc electrowinning was prepared.In electrolyte of pure ZnSO4-H2SO4, the anodic polarization potential, corrosion rate were studied systematically and the elect
【作 者】
：
Yanqing Lai Shuiping Zhong Liangxing Jiang Xiaojun Lv Jie Li Yexiang Liu 
【机 构】
：
School of metallurgical science and engineering, Central South University, Changsha, 410083
【出 处】
：
第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg
【发表日期】
：
2009年4期
【关键词】
：
Zinc electrowinning porous anode oxygen evolution potential corrosion rote Mn2+ 
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　　A new type of porous Pb-0.8%Ag anode in zinc electrowinning was prepared.In electrolyte of pure ZnSO4-H2SO4, the anodic polarization potential, corrosion rate were studied systematically and the electrochemical behavior and characteristics of porous anode are revealed.Additionally, the current efficiency and Mn2+ dilution were studied in the electrolyte of ZnSO4-MnSO4-H2SO4.The results show that the anodic oxygen evolution potential decreases first and then increases with the decrease of pore diameter.
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