Extraction of copper is done  using copper pyrites. After roasting, the ore is mixed with
Channel: Doubtnut
Date: 2020-07-26

Extraction of copper is done  using copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted in a blast furnace. The matte obtained from the blast furnace is charged into a silica-lined converter. Some silica is also added, and a hot air blast is blown into the mixture to obtain blister copper, which is purified  by electrorefining.  The chemical formula of copper pyrites is.