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Thermal Reduction of Mechanically Activated Cinnabar (HgS) and Stibnite (Sb2S3)

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Abstract

The reduction of cinnabar (HgS) and stibnite (Sb2S3) by hydrogen was investigated. These investigations were performed in the temperature region 636–765 K for cinnabar and in the region 825–954 K for stibnite. It has appeared that the mechanical activation positively affects the thermal reduction of the sulphides. The thermal decomposition of HgS is accompanied by a change in mechanism taking place at 744 K. As to Sb2S3, the change in mechanism inthe investigated temperature region was not observed.

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Authors and Affiliations

  1. Institute of Geotechnics, Slovak Academy of Sciences, 043 53, Košice, Slovakia

    P. Baláž & E. Godočiková

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  1. P. Baláž
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  2. E. Godočiková
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Baláž, P., Godočiková, E. Thermal Reduction of Mechanically Activated Cinnabar (HgS) and Stibnite (Sb2S3). Journal of Thermal Analysis and Calorimetry 65, 51–57 (2001). https://doi.org/10.1023/A:1011564232088

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  • DOI: https://doi.org/10.1023/A:1011564232088

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