The production of non-ferrous metals can directly obtain pure metals without the intermediate process of smelting crude metals.

Pure metal was prepared by using insoluble anode to reduce the extracted metal ions in the leaching and purifying electrolyte at the cathode. Electrolytic metallurgy has occupied a large proportion in the hydrometallurgical industry. The non-ferrous metals produced by electrolytic metallurgy are Zn, Cd, Cu, Mn, Co, Ni, Cr, etc.

The advantage of electrolytic metallurgy is that it has high selectivity, can obtain high-purity metals, and can recover useful metals, so it can deal with low-grade minerals and polymetallic ores with complex components, which is conducive to the comprehensive utilization of resources.