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Hydro metallurgy:


The use of an aqueous solution to extract metals from their ores is known as hydrometallurgy. One early example of hydrometallurgy is a process used to obtain gold. Gold occurs in its elemental state, but often as very small particles mixed with other substances. The gold can be separated out of the mixture by selectively dissolving it into solution, a process called leaching. Hydrometallurgy use for extraction of Cu, Ag, Au etc. Hydrometallurgy used two famous processes (1) MacArthur-Forrest Process (2) Leaching

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