26 September 2023

Metal extraction | Production of Metal

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Metal extraction

Metal extraction

The process of extracting metals from


  1. Pyrometallurgy – furnace heat is used with a reducing agent (iron uses coke) and a flux to produce metal and slag waste.
  2. Hydrometallurgy – leaching dissolves ore in a solvent and then electrolysis is used to separate the metal.

Thermo-electrometallurgy. Aluminum can be extracted from salt or mineral mixtures by electrolysis. It uses a lot of electricity making it an expensive process.

Blister copper is refined by electrolysis.

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