Abstract
The kinetics of minor element removal has been included in an overall model of the Peirce-Smith converter. Mass transfer between the condensed phases and to the gas has been considered. The model is able to predict the distribution of the minor elements fairly well but is limited by the scarcity of thermodynamic and kinetic data. It has been determined that the factors that increase oxygen efficiency, in particular gas velocity and tuyere submergence, tend to increase the proportion of the minor elements reporting to the dust. The reduction of the gas volume flow through the converter associated with oxygen enrichment does tend to reduce the minor element content in the dust. However, this effect may be offset by the increased temperature. Increasing temperature also increases the minor element content of the blister copper produced.
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