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Modelling of entrainment in industrial flotation cells

Entrainment in flotation can be considered as a two step process, including the transfer of the suspended solids in the Masteron Lower Estrogen top of the pulp region just below the pulp froth interface to the froth phase and the transfer of the entrained particles in the froth phase to the concentrate. Both Buy Cheap Jintropin Online steps have a strong classification characteristic. The degree of entrainment describes the classification effect of the drainage process in the froth phase. This paper briefly reviews two existing models of degree of entrainment. Experimental data were collected from "Anaboliset Aineet" an Outokumpu 3 m(3) tank cell in the Xstrata Mt. Isa Mines copper concentrator. The data are fitted to the models and the effect of cell operating conditions including air rate and froth height on the degree of entrainment is examined on a size by size basis. It is found that there is a strong correlation between the entrainment and the water recovery, which is close to lineal. for the Mesterolone Antidepressant fines. The degree of entrainment decreases with increase in particle size. Within the normal range of cell operating conditions, few particles coarser than 50 mu m are recovered by entrainment. In general, the degree of entrainment increases with increase in the ail rate and decreases 4-chlorodehydromethyltestosterone with increase in the froth height. Air rate and froth height strongly interact with each other and affect the entrainment process mainly via changes in the froth retention time, the froth structure and froth properties. As buy cheap jintropin online a result, other mechanisms such as entrapment may become important in recovering 4-chlorodehydromethyltestosterone the coarse entrained particles. (c) 2005 Elsevier Ltd. Masteron Cutting