Economic of Copper Processing SlideShare
23/06/2013· Effective costs of Copper Processing As each tonne of ore produces 0.0051 t of copper in concentrates, with a free market value of £ 5.00, so total production costs of copper in concentrates : However, if the ore contains appreciable by products, the effective production costs are reduced. Assuming the concentrate contains 25 gpt of gold and 70 gpt of silver, then