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.
Matte is a mixture of
A. `cu_(2)+FeS `(small amount )
B. `FeS+Cu_(2)s`{small amount )
C. `Cu_(2)O+FeO`(small amount)
D. `Cu_(2)O +FeO`(large amount).
