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This paper reviews the developments in understanding of the mechanism and its modelling in industrial processes over the last 30 years. Both valuable and gangue minerals in the pulp zone of an industrial machine can be transported through the froth zone to the concentrate launder in the water which must also be...read more
Entrainment is a process by which fine and ultrafine particles are transferred to the flotation froth from the top of the flotation pulp, and eventually discharge to the concentrate product, even...read more
data also suggested a decrease in transport as size of added platy mica increased until a local transport minimum was reached, beyond which another increase in transport was observed. It was further hypothesized that this was related to confinement of coarse mica particles in theread more
· Abstract Theoretical and experimental studies have been performed to analyze the entrainment in flotation. A new model is proposed for the entrainment based on the water recovery trend. Two sets of timed flotation experiments were carried out to validate the model.read more
Flotation process in mechanical cells is carried out in highly turbulent conditions. In this work, the impact of impeller speed on four characteristics of the quiescent zone, i.e. zone height, turbulence, solid percentage, and gas holdup, and their relationship with the entrainment is investigated, and it is shown why at a higher impeller speed, entrainment is not significant.read more
, is a mechanical mass transfer and it is based on the changes depending on the establishment of linear relationship between water and solid recovery.read more
is one of the important mechanisms in processing of coal by froth where particles are transported from the pulp phase to the froth phase. In that particles enter the base of a froth and are transferred up and out of the cell suspended in …read more
· The effect of particle size in the was analyzed by particle size distributions of four fractions <25 µm +25–45 µm, +45–63 µm and >63 µm. The contribution of is similar for the three oxides and the degree of decreases with increasing particle size however, the recovery by true flotation is different because of its discriminatory effect on …read more
The main aim of a is to recover the valuable part of the ore with minimum gangue contamination by different mechanisms, such as . In this study, the rate and recovery of talc and of fine calcite particles were investigated using individual minerals and a mixture of talc and calcite.read more
Entrainment is Operational changes physical and/or chemical are required to reduce the recovery of gangue minerals by entrainment so that an acceptable concentrate grade can be obtained.read more
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