Cost Per Ton Calculator For Crushers – Grinding Mill …
Heap leaching is an industrial mining process to extract precious metals, ... (as high as 1,000 kg of acid per tonne of ore, but 500 kg is more common.) The method was originally patented by Australian miner BHP Billiton and is being commercialized by Cerro Matoso S.A. in Colombia (a wholly owned subsidiary of BHP Billiton), Vale in Brazil, …