Abstract
Based on the hydrodynamic principles of bubble-particle interactions, a simulation package has been developed to predict the performance of flotation columns for sulfide flotation. The input variables to the simulator include particle size, bubble size, particle hydrophobicity, feed rate, feed composition, aeration rate, wash water rate, column height, etc. The problems associated with carrying capacity limit and froth overloading have also been considered in the model development. The simulation results show that operating a column considerably beyond this limits creates a circulating load between the froth and pulp phases, which is helpful for improving the product grade. Since the simulator is based largely on first principles, it can be useful for scale-up, control, optimization and trouble-shooting.
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