Question

How is copper extracted from copper glance

Answer 1

Copper is extracted from its principal ore copper pyrites (CuFeS2). The oreis concentrated by froth flotation process. The concentrated ore is roasted in a reverberatory furnace when the following reactions occur.

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Answer 2

Answer:

1. Roasting of copper glance :

2Cu₂S + 3O₂ → 2Cu₂O + 2SO₄  

2.Reduction of copper oxide:

2Cu₂O + Cu₂S → 6Cu + SO₂