Electrometallurgy

Metals are produced by electrolysis using the metallurgical process known as electrometallurgy. As it is typically the final step in the manufacture of metal, pyrometallurgical or hydrometallurgical processes come before it. the electrode, for instance, in the Hall-Hérault process to make aluminium from aluminium oxide. A metal can be reduced from an aqueous metal salt solution created by hydrometallurgy and electrolysis can be employed as the last refining stage in the manufacture of pyrometallurgical metals electrorefining electrowinning. The study of the processes of metal electrodeposition is known as electrometallurgy. These processes can be divided into four groups:
Electrolysis; Metal extraction from ores using electrowinning; By depositing a coating of one metal on another, electroplating; Making thin metal by electroforming is a common practise.