Determination of the contributions of true flotation and entrainment in batch flotation tests |
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| Authors: | Leonard J Warren |
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| Institution: | CSIRO Division of Mineral Chemistry, P.O. Box 124, Port Melbourne, Vic. 3207, Australia |
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| Abstract: | Laboratory batch flotation tests were carried out on a deslimed (+6 μm) sulfiderich cassiterite ore, an ultrafine fraction (?6 μm) of a cassiterite ore and a bituminous coal. Chemical conditions were kept constant but the water recovery was varied by changing the height of the froth column and the rate and depth of froth removed. The recovery of the floatable mineral in each system was then found to be linearly related to the weight of water recovered. The intercept of the regression line on the mineral recovery axis, where the water recovery is zero, was interpreted as the recovery due to true flotation. The entrainment contribution was proportional to the slope of the line. In this way the contributions of entrainment and true flotation to overall recovery were separated. |
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