CONTEMPORARY PRACTICES IN GRAVITY RECOVERY INSTALLATIONS IN THE CANADIAN GOLD MINING-INDUSTRY

There are now over sixty gold mining operations in Canada, many designed, built and commissioned or modernised during the last ten years. The majority of these recover gold by cyanidation and carbon-in-pulp, or carbon-in-leach. Many of the new plants use semi-autogenous grinding. This paper reviews current practice in those Canadian mills that use some form of gravity concentration. The gold mill at Corona Corporation's Jolu mine is described in some detail. This is a good example of many recent gold plants and successfully uses gravity concentration and carbon-in-pulp to achieve a gold recovery in excess of 97%.