extraction of copper from copper pyrites ore
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An overall equation for this series of steps is:
2CuFeS2 + 2SiO2 +4O2 =Cu2S + 2FeSiO3 + 3SO2
The copper(I) sulfide produced is converted to copper with a final blast of air Cu2S + O2 = 2Cu + SO2
The end product of this is called blister copper - a porous brittle form of copper, about 98 - 99.5% pure.
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