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