METHOD OF COPPER RECOVERY FROM SOLUTIONS Russian patent published in 2000 - IPC

FIELD: hydrometallurgical processes, particularly, recovery of copper from refining production solutions with removed precious metals. SUBSTANCE: method includes internal electrolysis. Loaded into revolving screen of electrolytic precipitator which serves as anode is electronic or iron scrap containing precious metals. Revolving screen is placed into titanium bath whose bottom serves as cathode. Copper-containing solution with removed precious metals is poured into bath and process of electrolytic precipitation is conducted. Upon completion of process, discharged from bath is solution depleted in copper, and precipitated copper is removed, washed, dried and melted. Unloaded from electrolytic precipitator is enriched in precious metals electronic or iron scrap, from which precious metals are recovered with the help of aqua regia method. EFFECT: higher degree of purification of solution from precious metals, reduced power consumption, increased concentration of precious metals in scrap. 2 ex