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• W4383891705 endingPage "108217" @default.
• W4383891705 startingPage "108217" @default.
• W4383891705 abstract "A simple and easy-to-use phenomenological kinetic flotation model, strongly connected with the physics of the process, is proposed in this paper. The model explicitly contains the cell volume, aeration rate, volumetric hold-up, mean bubble size, and particle density as input variables. It can be employed to characterize the floatability distributions of the particles in the pulp and the froth separately any time during the flotation process. Two new time-dependent kinetic parameters, the bubble loading factor φ(t) and the maximum cell mass transfer capacity Ṁmax(t) also appear in the model expression. φ(t) is a measure of the degree of crowding of the bubble surfaces and accounts for the deviations from the first-order rate equation. Ṁmax(t) describes the maximum amount of mass that can be transported to the froth phase by the bubble population in the cell. Screen fractionation of each froth product collected at different time intervals during a single kinetic flotation test is sufficient to generate the data required by the model for analysis. Application of the model to this data yields directly time-dependent functions for the floatability of the particles reporting to froth Kf(t) or remaining in the cell Kp(t) for each size fraction separately, without the need for any empirical parameters. The test of the model was carried out using published kinetic flotation data from the literature." @default.
• W4383891705 created "2023-07-12" @default.
• W4383891705 creator A5045149930 @default.
• W4383891705 creator A5076113256 @default.
• W4383891705 date "2023-10-01" @default.
• W4383891705 modified "2023-10-12" @default.
• W4383891705 title "A phenomenological kinetic flotation model: Distinct Time-Variant floatability distributions for the pulp and froth materials" @default.
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• W4383891705 doi "https://doi.org/10.1016/j.mineng.2023.108217" @default.
• W4383891705 hasPublicationYear "2023" @default.
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