The Mining Process Waihi Gold
The larger particles from this mill are returned to the mill for more grinding. The finer particles receive more grinding in a ball mill, and are size classified to give a final product of 80% lt; microns. See more detail on grinding and sizing. 5. Leaching and adsorption A slurry of ground ore, water and a weak cyanide solution is fed into large steel leach tanks where the gold and