Research on the Electrolyze High Impurities Copper with CuNO_3-HNO_3 System

The copper recovered from jamesonite concentrate contains too much impurities like lead,sliver,antimony and bismuth,and can’t be refined with normal electrolysis process.The electrolysis process with CuNO3-HNO3 electrolyte can effectively separate copper and silver,and avoid anodic passivation.At last,it points out the problems of electrolysis,such as higher cell voltage and lower current efficiency.