RECOVERY METHOD OF COPPER AND PRECIOUS METAL BY ELECTROLYSIS OF CRUDE COPPER CONTAINING PRECIOUS METAL USING COPPER CHLORIDE SOLUTION

摘要

An embodiment of the present invention provides a method for recovering copper and noble metals from a small amount containing noble metals by electrolysis using a copper chloride solution. In the copper electrolysis and noble metal concentration recovery method using a copper chloride solution, first, _{an electrolytic solution using cupric chloride (CuCl 2} ), hydrochloric acid, and sulfuric acid solution as an electrolyte, and a small volume containing copper and noble metals. An electrolytic cell including an anode and a cathode made of Cu is prepared. Thereafter, an electrolysis process is performed on the electrolytic cell to reduce and recover purified copper from the negative electrode, and concentrate and recover the precious metal with electrolytic slime from the positive electrode.