A review of methods to model the froth phase in non-steady state flotation systems |
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| Affiliation: | 1. Automation and Supervision Centre for Mining Industry, CASIM, Department of Chemical and Environmental Engineering, Federico Santa Maria Technical University, P.O. Box 110-V, Valparaíso, Chile;2. Nuclear Trace and Engineering Ltd., Santiago, Chile;1. School of Automation, Central South University, Changsha 410083, China;2. The Peng Cheng Laboratory, Shenzhen 518000, China;3. School of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha 410004, China |
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| Abstract: | The current of batch flotation froth modelling is critically reviewed in order to identify its significance and usefulness, particularly in the scale-up of batch data to a continuous flotation process. This review suggests that the concept of the froth recovery factor, Rf, may provide the most useful way of establishing the performance of the froth phase in a batch flotation process. The froth recovery factor refers to the fraction of material reporting to the pulp-froth interface which is ultimately recovered in the concentrate. It is also proposed that a froth recovery model based on froth retention time can be used for relating batch froth performance to continuous flotation systems. However, a quantitative model which relates the froth recovery factor and froth sub-processes has yet to be developed. |
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