Copper is extracted from copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted into 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 thrown into the mixture to obtain blister copper which is purified by electrorefining.
During roasting, copper pyrites are ultimately converted into a mixture of:
(A) FeS + Cu2S
(B) FeS + Cu2O
(C) FeO + Cu2S
(D) FeS+Cu2S→FeO+Cu2O
Copper is extracted from copper pyrites. After roasting, the ore is mixed with silica and coke and then smelted into 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 thrown into the mixture to obtain blister copper which is purified by electrorefining.
During roasting, copper pyrites are ultimately converted into a mixture of:
(A) FeS + Cu2S
(B) FeS + Cu2O
(C) FeO + Cu2S
(D) FeS+Cu2S→FeO+Cu2O
Harshit Singh , 4 Years ago
Grade 12th pass
