RECOVERING METHOD FOR METALLIC ZINC FROM ACID SOLUTION COATINING ZINC AND IRON BY ELECTROLYSIS

摘要

PURPOSE:To stably recover high purity Zn from an acid soln. contg. Zn and Fe with high current efficiency over a long period by electrolyzing the soln. obtd. by acid treating substandard Zn-plated steel materials or the like while specifying the concn. of free acid and the conc. (g/l) ratio of Fe/Zn.