Kinetics and Mechanism of the Natural Mineral Marmatite Oxidation Process |
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Authors: | Živković Ž. D. Živković D. Grujičić D. Štrbac N. Savović V. |
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Affiliation: | (1) Technical Faculty, University of Belgrade, 19210 Bor, Yugoslavia |
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Abstract: | Results obtained by the comparative investigations of the natural mineral marmatite (Zn,Fe)S (Stari Trg, Yugoslavia) oxidation process are presented in this paper. Determination of the oxidation process mechanism was done by thermal analysis methods: DTA-TG-DTG and DSC, while Mössbauer spectroscopy, X-ray and electronic microanalysis were used for phase composition determination of the products formed during the oxidation process. Kinetics of the process was defined for two temperature intervals 862–973 and 1023–1173 K, under isothermal conditions. |
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Keywords: | kinetics marmatite oxidation process |
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