Discovery Projects - Grant ID: DP0211085

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Behaviour of particles in flotation froths. Froth flotation is widely used for the separation of mineral particles. Currently, there is an upper limit on the size of particles that can be treated. It has recently been found that the upper limit can be extended from a few hundreds of microns, up to millimetre sizes, by processing the particles in the froth. We will study the forces acting on particles in flotation froths, as well as froth drainage and entrainment, to find the factors that limit the flotation of large particles and objects. The work is relevant to water treatment and the separation of plastics for recycling.