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Primary Iron Ore Coppers

Rotary Kiln

From the formula it is clear that iron and sulfur have to be removed in order to produce copper. The roasting process changes some of the CuFeS 2 to copper oxide removes some of the sulfur as sulfur dioxide This is done by heating the concentrated ore from froth flotation. It is heated to between 500 C and 700 C in air. The product from

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