METHOD OF OBTAINING COPPER FROM ORE

摘要

A method of obtaining copper from feedstock includes: providing the feedstock into acid solution including chloride and bromide of one of alkali metal and alkali earth metal, and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper with use of oxidizing power of an iron ion and / or copper ion, with air being blown into the acid solution under and atmospheric pressure at a temperature less than a boiling point of the acid solution; solid-liquid separating the acid solution; blowing air into the solution and oxidizing copper in the solution; coprecipitating iron and impurity; separating deposition including coprecipitate obtained in the coprecipitating from the solution after the coprecipitating; extracting copper from the solution after the separating; obtained the extracted copper into sulfuric acid solution as copper sulfate; and obtaining copper from the copper sulfate.