New approaches in gold recovery

Much of the world’s gold is in the form of free-milling and alluvial gold. Gold has a high density, about 20 times higher than water, which means that free gold can be economically recovered by a myriad of gravity processes such as jigs, tables, sluices, and centrifugal devices. It is generally accepted that the size of such particles should be greater than several hundred microns to be efficient

New approaches in gold recovery New approaches in gold recovery New approaches in gold recovery New approaches in gold recovery New approaches in gold recovery

Figure 1: A 16 inch diameter small-scale production HydroFloat for gravity tails flotation

At the same time, conventional flotation such as flash flotation, which is often used in gold flowsheets, is only effective for particles less than about 100 microns, and flotation is complicated when