Precious Metal Heap Leach Design and Practice - Ore-Max
Heap leaching of gold and silver ores is conducted at approximately 120 mines worldwide. Heap leaching is one of several alternative process methods for treating precious metal ores, and is selected primarily to take advantage of its low capital cost relative to other methods.
Heap Leaching of Gold and Silver Ores - PDF Free Download
Most gold heap leaches apply cyanide within a range of 200e600 mg/L NaCN. Silver-bearing ores should usually be leached with a cyanide level of 600e1000 mg/L NaCN. Cyanide consumption via complexation, volatilization, natural oxidation, or oxidation by ore components typically ranges from 0.1 to 1.0 kg/t of ore.
Heap Leaching Gold and Silver Ores
Table of ContentsLaboratory Equipment and MaterialInvestigation of Process VariablesEffect of the Amount of Portland Cement added on Percolation Flow RateEffect of
Heap Leaching of Gold and Silver Ores - ResearchGate
Heap leaching is performed in different configurations, each with certain advantages and disadvantages. Gold and silver are leached with a dilute alkaline solution of sodium cyanide. The recovery