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Kinetics of biochemical leaching of sphalerite concentrate

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Abstract

The paper deals with bacterial leaching of sphalerite. The data include progress curves for leaching of the concentrate in terms of Zn, Cu, and Cd solubilization. Plots of the Zn and Cu data followed a relationship predicted by a chemical rate equation. Reaction rates for Zn and Cu were inversely related to initial particle size of the concentrate. A pulp density in excess of 2 pct caused a decrease in percent Zn leached in 31 days, presumably due to oxygen limitation. The leaching of Zn and Cu followed first order kinetics.

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Authors and Affiliations

  1. Hydro & Electro Metallurgy Group, Regional Research Laboratory, Bhubaneswar-751 013, Orissa, India

    G. Roy Chaudhury (Scientist), L. B. Sukla (Scientist) & R. P. Das (Assistant Director)

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  1. G. Roy Chaudhury
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  2. L. B. Sukla
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  3. R. P. Das
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Chaudhury, G.R., Sukla, L.B. & Das, R.P. Kinetics of biochemical leaching of sphalerite concentrate. Metall Trans B 16, 667–670 (1985). https://doi.org/10.1007/BF02667503

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  • DOI: https://doi.org/10.1007/BF02667503

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