It is a method that uses electrical energy to produce metals by electrolysis. The electro metallurgical processes can be categorized into four main groups:
- Electrowinning: It is the extraction of metals by electrodeposition from aqueous solution or melts of their salts.
- Electrorefining: It is the purification of metals by electrolysis
- Electroplating: It is the treatment that modifies the surface of a metal or occasionally a non-metal, without changing
its bulk properties
- Electroforming: It is the manufacture of articles by electrodeposition