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研究了杂质Ｃｕ；Ｚｎ，Ｓｎ在氯化物和硫酸盐电解质溶液中与Ｆｅ共沉积的电化学行为及其对提取高纯度电解铁的影响．发现Ｆｅ一Ｃｕ共沉积是Ｃｕ先析出的正常型共沉积，Ｆｅ－Ｚｎ共沉积在４０℃低温时是Ｚｎ先析出的异常型共沉积，８０℃高温时是Ｆｅ先析出的正常型共沉积， Ｆｅ－Ｓｎ共沉积在高电流密度时属Ｆｅ优先析出的异常型共沉积．
The electrochemical behavior of Cu, Zn and Sn co-deposition with Fe in chloride and sulfate electrolyte solutions and their effect on the extraction of high purity electrolytic iron were studied. It is found that Fe-Cu co-deposition is a normal-type co-deposition of Cu first precipitation. Fe-Zn co-deposition is an anomalous co-deposition of Zn first precipitated at low temperature of 40 ℃ and normal co-deposition of Fe first precipitated at a high temperature of 80 ℃, Fe-Sn co-deposition at high current density is the preferential deposition of Fe-type co-deposition.