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Oxidation Sequence of Sulfide Minerals in Operating and Out-of-Service Mine Waste Storage

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Abstract

To determine the oxidation sequence for sulfides in stored mine waste and to assess the effect of sulfide oxidation on the environment and the processing characteristics of anthropogenic deposits, the electrode potentials of sulfide minerals were measured in alkali solutions under conditions similar to storage conditions. The surface oxidation of sulfides was studied in relation to the nature and concentration of the dissolved gas. The influence of sulfide surface inhomogeneities and mineral concretion on the electrochemical oxidation was investigated. The oxidation rate of minerals was found to be increased by impurities with higher electropositive potentials.

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  1. Institute of Rare Element and Mineral Chemistry and Technology, Kola Research Center, Russian Academy of Sciences, ul. Fersmana 26a, Apatity, Murmansk oblast, 184200, Russia

    V. T. Kalinnikov, D. V. Makarov & V. N. Makarov

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  1. V. T. Kalinnikov
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  2. D. V. Makarov
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  3. V. N. Makarov
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Kalinnikov, V.T., Makarov, D.V. & Makarov, V.N. Oxidation Sequence of Sulfide Minerals in Operating and Out-of-Service Mine Waste Storage. Theoretical Foundations of Chemical Engineering 35, 63–68 (2001). https://doi.org/10.1023/A:1005272819672

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