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This paper presents results of column flotation of silica sand (d 80 =190μm) that show typical column heights may adversely affect the performance of the flotation, when relatively dense flotation slurries of floatable mineral are processed. For slurry densities above 20% of solids (w/w), floated under typical conditions (J g =1.46cm/s, J t =1cm/s, J ww =0...
A statistical model to calculate the superficial velocity of water accompanying the solids recovered to the concentrate is presented and discussed. The model--intended for being incorporated to one of the available models for solids recovery to perform the balance of water around the column--expresses the superficial velocity of concentrate water as a function of solids recovery, bias velocity, froth...
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