The word hydrometallurgy is a noun that refers to a method of obtaining metals from their ores entailing the use of aqueous chemicals on metal ores. Hydrometallurgy is at times complemented by pyrometallurgy which is an older technology.
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what is the definition of hydrometallurgy
Advice (also called exhortation) is a form of relating personal or institutional opinions, belief systems, values, recommendations or guidance about certain situations relayed in some context to another...