Flotation Kinetics: Mass & Water Recovery VS Entrainment & Mineralogy

This covers the recovery of entrained solids with water and the relationship between mineralogy and flotation performance; both are described in terms of flotation kinetics. The starting points for the relationship between mass and water recovery other products of a flotation rate test. In addition to concentrate mass, metal or mineral and floatable gangue. If the mass of water in each concentrate has been measured, then a fourth set of kinetics can be added which defines water recovery. This is useful if dealing with ultra-fine material or silicate gangue which has been recovered mainly by entrainment by water carry over to concentrate rather than being recovered by true flotation. Knowing the kinetics of water recovery is also useful as one means of classifying frothers. The graph shows the relationship between mass and water recovery for PGM ores in colours other than yellow and twenty two variability samples for a nickel ore in yellow. For reference, profiles for different silica size fractions from research conducted by Zheng in 2008 are included. The mass recovery of less than five microns slimes due to entrainment is high. Where there‚Äôs recovery of the coarser is less than thirty eight plus thirty one micron fraction … Continue reading Flotation Kinetics: Mass & Water Recovery VS Entrainment & Mineralogy