A modified laboratory cell for the flotation of coal |
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| Authors: | T Roberts BA Firth SK Nicol |
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| Institution: | BHP Central Research Laboratories, Newcastle, N.S.W. 2307 Australia |
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| Abstract: | The need to obtain accurate, operator-independent data from small-scale laboratory flotation tests has become particularly apparent in the treatment of fine coal. The work described suggests a method for reducing operator dependency by removing the flotation froth uniformly. This is achieved using a perspex insert to change the geometry of the cell, by maintaining a constant pulp level height and by removing froth from the full width of the cell and at a fixed depth.A comparison is made between the modified cell and a conventional Denver cell by obtaining equilibrium and kinetic data for each cell from two independent operators.The comparison shows a reduction in the variability of the results obtained from the modified cell. |
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