Abstract
In the former two reports the authors have developed a mathematical model of continuous flotation process with back-flow model describing the flow characteristics of flotation cells and with the first-order flotation reaction equation involving the discrete distribution of the rate constants.In the present report the residence time distribution of the pulp was determined in different types of flotation cells in Shikama Concentrator in Kamioka, Mitsui Mining and Smelting Co. Ltd., to find out that the back-flow model could describe their flow characteristics adequately. The bulk flotation circuit of lead and zinc minerals in the plant was investigated under steady state conditions by the simulation model using the data of semi-batch flotation tests in the laboratory. The flotation behavior of the minerals could be approximated by this simulation fairly well. Thus the process model was proved to be valid for the simulation of a full-scale continuous flotation process of lead and zinc minerals.
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