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Influence of Coal Processing with a Suspension of Blast Furnace Slag on Changes in the Physicochemical Properties of the Surface

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Abstract

The properties and efficiency of a solid–liquid suspension based on ground blast furnace slag, which is used to deactivate the processes of oxidation and spontaneous combustion of coals, have been studied. It has been established that sequential impregnation of coal with water-soluble and thickened components of the slag suspension promotes uniform passivation and a decrease in the oxidative activity of the external contacting surface. The results obtained justify the effectiveness of using slag waste as a constituent of technological suspensions for the insulation plugging of a coal seam.

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ACKNOWLEDGMENTS

The authors are grateful to S.A. Sozinov (Collective Use Center, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences) and A.V. Yarkova, T.A. Papina, and A.V. Anikina (Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences) for their assistance in performing physicochemical methods of analysis.

Funding

This work was carried out within the framework of a state contract at the Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences (project FWEZ-2021-0002, registration no. АААА-А21-121012290021-1).

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Authors and Affiliations

  1. Coal Institute, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, 650065, Kemerovo, Russia

    Yu. F. Patrakov, A. E. Maiorov, S. A. Semenova & D. P. Kulik

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  1. Yu. F. Patrakov
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  2. A. E. Maiorov
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  3. S. A. Semenova
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  4. D. P. Kulik
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Corresponding authors

Correspondence to Yu. F. Patrakov, A. E. Maiorov, S. A. Semenova or D. P. Kulik.

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The authors declare that they have no conflicts of interest.

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Translated by V. Makhlyarchuk

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Patrakov, Y.F., Maiorov, A.E., Semenova, S.A. et al. Influence of Coal Processing with a Suspension of Blast Furnace Slag on Changes in the Physicochemical Properties of the Surface. Solid Fuel Chem. 57, 394–401 (2023). https://doi.org/10.3103/S0361521923060058

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