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Thermodynamics of copper matte converting: Part III. Steady-state volatilization of Au, Ag, Pb, Zn, Ni, Se, Te, Bi, Sb, and As from slag, matte, and metallic copper

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Abstract

A comprehensive compilation of various thermodynamic data required for a complete analysis of copper matte converting reactions is presented. The data comprise estimated free energies of formation for such gases as SeO, SeS, TeO, TeS, BiO, BiS, SbO, SbS, AsO, and AsS, as well as activity coefficients in dilute copper alloys and vapor pressures of various elements and compounds. The volatilization of minor elements in steady-state reactors comprising gas and several condensed phases is mathematically formulated, and a parameter which governs the volatilization in such reactors is defined and named volatilization constant. The vapor pressures of various volatile species are calculated thermodynamically for the Noranda Process reactor by assuming equilibrium conditions. The volatilization constants of various minor elements are expressed explicitly as functions of oxygen and sulfur activities.

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Authors and Affiliations

  1. Centre de Recherches Minérales, Quebec Government, 2700 Einstein, G1P 3W8, Ste-Foy, Quebec, Canada

    M. Nagamori

  2. Department of Metallurgical Engineering, University of Utah, 84112, Salt Lake City, UT

    P. C. Chaubal (Graduate Student)

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  1. M. Nagamori
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  2. P. C. Chaubal
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Formerly Associate Professor, Department of Metal-lurgical Engineering, University of Utah, Salt Lake City, UT.

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Nagamori, M., Chaubal, P.C. Thermodynamics of copper matte converting: Part III. Steady-state volatilization of Au, Ag, Pb, Zn, Ni, Se, Te, Bi, Sb, and As from slag, matte, and metallic copper. Metall Trans B 13, 319–329 (1982). https://doi.org/10.1007/BF02667747

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  • DOI: https://doi.org/10.1007/BF02667747

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