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Relationship of Iron and Sulfur Inclusions in Fossil Coals with Their Tendency to Gas-Dynamic Phenomena

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Abstract

X-ray fluorescence analysis was used to study the composition of mineral inclusions in outburst-prone coal bed. A relationship between the presence of iron-containing compounds and sulfur in coals with their tendency to gas-dynamic phenomena was revealed. It was found that coal outbursts from the Pechora and Donets basins contained several times more iron than coals from non-hazardous zones of in the same coal bed. The predominance of iron over sulfur in outburst coal relative to a stoichiometric ratio between them in pyrite and, similarly, the predominance of sulfur content in coals from the zones of bed unprone to outbursts were determined.

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Funding

This study was supported by the Russian Foundation for Basic Research, project no. 19-05-00824-а.

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Authors and Affiliations

  1. Melnikov Research Institute of Problems of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, 111020, Moscow, Russia

    E. V. Ulyanova, O. N. Malinnikova, B. N. Pashichev & M. O. Dolgova

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  1. E. V. Ulyanova
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  2. O. N. Malinnikova
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  3. B. N. Pashichev
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  4. M. O. Dolgova
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Correspondence to E. V. Ulyanova, O. N. Malinnikova, B. N. Pashichev or M. O. Dolgova.

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Translated by V. Makhlyarchuk

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Ulyanova, E.V., Malinnikova, O.N., Pashichev, B.N. et al. Relationship of Iron and Sulfur Inclusions in Fossil Coals with Their Tendency to Gas-Dynamic Phenomena. Solid Fuel Chem. 54, 105–109 (2020). https://doi.org/10.3103/S0361521920020111

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  • DOI: https://doi.org/10.3103/S0361521920020111

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