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Galvanic conversion of chalcopyrite

  • Hydrometallurgy
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Abstract

Galvanic interaction between particulate chalcopyrite (CuFeS2) and copper results in the rapid conversion of chalcopyrite to chalcocite. The effects of temperature, surface area, concentration of sulfuric acid and agitation were systematically evaluated. The kinetics were found to be controlled by a steady-state current flow controlled by the effective anodic and cathodic surface areas involved in the galvanic couple. The experimental activation energy was 11.5 and stoichiometric data and reaction products have been characterized. The overall kinetic system has been evaluated based upon an electrochemical model.

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Authors and Affiliations

  1. New Mexico Institute of Science and Technology, New Mexico

    J. Brent Hiskey (Assistant Professor of Metallurgy)

  2. Department of Mining, Metallurgical and Fuels Engineering, University of Utah, 84112, Salt Lake City, Utah

    Milton E. Wadsworth (Professor of Metallurgy and Chairman)

Authors
  1. J. Brent Hiskey
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  2. Milton E. Wadsworth
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Hiskey, J.B., Wadsworth, M.E. Galvanic conversion of chalcopyrite. Metall Trans B 6, 183–190 (1975). https://doi.org/10.1007/BF02825693

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  • DOI: https://doi.org/10.1007/BF02825693

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