Optimising the Recovery of Fine and Coarse Particles in Mineral Flotation

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The collection of fine (<10 microns) and coarse (>100 microns) mineral particles by gas bubbles is the very heart of the selective froth flotation process. In the flotation of minerals, losses of fine and coarse value minerals equate to approximately $500M annually in Australia alone. The significance of flotation to the Australian economy may be judged from the fact that over $39b in commodity exports was derived from the minerals and energy industries in 2001, rising to well over $75b in 2005 (Australian Bureau of Statistics). These industries produce mineral concentrates of specific interest to our Industry Partner, such as copper, nickel, zinc and coal.