Effects of anode slime removing by Fe^(2+)dissolution method on electrochemical properties of Pb−0.6%Ag anode and zinc electrowinning  

Fe^(2+)溶蚀法清理阳极泥对Pb-0.6%Ag阳极电化学性能及锌电积的影响(英文)

作　　者：Wen-jun WANG Lan-bo LI Xu LIU Tie-chui YUAN He-xin GAO 王文军;李澜波;刘旭;袁铁锤;高和欣(中南大学粉末冶金国家重点实验室,长沙410083;浙江力博实业股份有限公司,绍兴312000;邵阳学院机械与能源工程学院,邵阳422000;株洲冶炼集团股份有限公司,株洲412000)

机构地区：[1]State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China [2]Zhejiang Libo Industrial Co.,Ltd.,Shaoxing 312000,China [3]College of Mechanical and Energy Engineering,Shaoyang University,Shaoyang 422000,China [4]Zhuzhou Smelter Group Co.,Ltd.,Zhuzhou 412000,China

出　　处：《Transactions of Nonferrous Metals Society of China》2024年第11期3777-3788,共12页中国有色金属学报（英文版）

基　　金：supported by Zhejiang Libo Industrial Co.,Ltd.,Shaoxing,China。

摘　　要：Fe^(2+)dissolution method and manual method were used to remove the anode slime and their effects on properties of cast Pb−0.6wt.%Ag anode and zinc electrowinning were compared.The results reveal that the Fe^(2+)dissolution method can avoid mechanical damage to the oxide film layer on the anode surface,which cannot be achieved by traditional manual method.This can lower the anode corrosion rate by 57.14%,thus reducing Pb contamination in electrolyte and zinc products.Meanwhile,compared with manual method,Fe^(2+)dissolution method can significantly improve the electrocatalytic activity of the anode and lower the initial power consumption of zinc electrowinning to 2720 kW·h/t after removing anode slime.对比研究Fe^(2+)溶蚀法和人工法清理阳极泥对铸造Pb-0.6%Ag(质量分数)阳极性能和锌电积的影响。结果表明,Fe^(2+)溶蚀法能避免阳极表面氧化膜层受到机械损伤,而传统人工法无法实现,这将使阳极腐蚀速率降低57.14%,从而减少电解液和锌产品的Pb污染。同时,相较于人工法,Fe^(2+)溶蚀法清理阳极泥可显著提高阳极的电催化活性,使阳极泥清理后的锌电积初始电耗低至2720 kW·h/t。

关 键 词：Pb−Ag anode zinc electrowinning anode slime removing electrochemical properties 

分 类 号：TF813[冶金工程—有色金属冶金]