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Original Paper

UDC 552.574 © E.S.Prokopiev, S.A.Prokopiev, O.L.Alekseeva, 2023

ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2023, № 12, pp. 104-107

DOI: http://dx.doi.org/10.18796/0041-5790-2023-12-104-107




Prokopiev E.S.1,2, Prokopiev S.A.1,2, Alekseeva O.L. 1,2

1Institute of the Earth’s Crust of SB RAS, Irkutsk, 664033, Russian Federation

2LLC Research and Production Company Spirit, Irkutsk, 664033, Russian Federation

Authors information

Prokopiev E.S., Junior researcher, Director for Technology and Innovation, e-mail: pes@spirit-irk.ru

Prokopiev S.A., PhD (Engineering),Head of the Department of Integrated Use of Mineral Raw Materials, Chief Executive Officer, e-mail: psa@spirit-irk.ru

Alekseeva O.L.,Leading engineer of the department for integrated use of mineral raw materials,Director of Economics and Finance, e-mail: aol@spirit-irk.ru


In this article, the authors talk about the importance of determining the optimal modes of enrichment equipment during the development of enrichment technology. With their data, they show that to achieve positive results it is not necessary to perform labor-intensive work; it is possible to achieve them using the most simplified methods.


Coal sludge, Enrichment of coal sludge, Operating parameters, Granulometric analysis, Thickening operation, Thickening of coal sludge.


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The research was performed as part of the Integrated Scientific and Technical Programme of the Ministry of Science and Higher Education of the Russian Federation № 075-15-2022-1192 "Processing of coal mill tailings in order to obtain commercial coal concentrate” with support of the ‘Development and implementation of complex technologies in the areas of exploration and extraction of minerals, industrial safety, bioremediation, creation of new deep conversion products from coal raw materials while consistently reducing the environmental impact and risks to human life’ Integrated Scientific and Technical Programme of the Full Innovation Cycle, approved by Order No. 1144-р of the Government of the Russian Federation on May 11, 2022.

For citation

Prokopiev E.S., Prokopiev S.A. &Alekseeva O.L. Coal slurry research resultsauthors. Ugol’, 2023, (12), pp. 104-107. (In Russ.). DOI: 10.18796/0041-5790-2023-12-104-107.

Paper info

Received> October 5, 2023

Reviewed November 10, 2023

Accepted November 27, 2023


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