Copper recovery from electrical engineering industry waste consists of electrolysis of copper nitrate soln. using metal cathode and graphite anode

Abstract

The process comprises electrolysis of copper nitrate solutions with Cu2+ = 2-110 g/l, acidity (NO3) = 0.1-35 g/l. The electrolysis, at normal temp., employs cells with a sepg. membrane, a metal cathode and a graphite anode. The current density is 2.3 A/dm2, the electrolysis taking place on one or both sides of the membrane. ADVANTAGE Electrolysis, on one or both sides of the separating membrane, takes place at normal temp.