COAL PREPARATION
IMPLEMENTATION OF GRAVITY-MAGNETIC TECHNOLOGY TO PROCESS CONSOLIDATED COAL TAILINGS
Original paper
UDC 622.7 c S.A. Prokopyev, E.S. Prokopyev, O.L. Alekseeva, 2025
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2025, №12
Authors
S.A. Prokopyev, E.S. Prokopyev, O.L. Alekseeva
Institute of the Earth’s Crust SB RAS, Irkutsk, 664003, Russian Federation e-mail: sapr100@mail.ru
Authors Information
Prokopyev S.A. – PhD (Engineering), Head of the Department of Integrated Use of Mineral Raw Materials, Institute of the Earth’s Crust SB RAS, Irkutsk, 664003, Russian Federation, e-mail: sapr100@mail.ru
Prokopyev E.S. – Head of the Assay and Analytical Research Department at the Institute of the Earth’s Crust SB RAS, Irkutsk, 664003, Russian Federation, e-mail: prokopyeves@mail.ru
Alekseeva O.L. – Senior Engineer of the Department of Integrated Use of Mineral Raw Materials, Institute of the Earth’s Crust SB RAS, Irkutsk, 664003, Russian Federation, e-mail: rssm38@mail.ru
Abstract
During laboratory, semi-industrial, and industrial tests, the Institute of the Earth’s Crust of the Siberian Branch of the Russian Academy of Sciences developed a gravity-magnetic technology for enriching coal dumps, which ensures the production of coal and iron-containing concentrate. During industrial tests, the following products were obtained: coal concentrate with a yield of 20.81% and an ash content of 18.9%; coal product (over-sieve product) with an ash content of 20.60% and a yield of 11.78%; and iron-containing concentrate with a mass fraction of iron of 64.9% and a yield of 0.66%. The gravity-magnetic technology for processing long-term coal tailings has proven to be effective.
Keywords
Industrial testing, coal processing tailings, gravity-magnetic technology.
References
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- Антипенко Л.А. Проблемы развития обогащения углей // Горный информационно-аналитический бюллетень (научно-технический журнал). 2009. № S14. С. 524-530. Antipenko L.A. Problems of coal enrichment development. Mining Informational and Analytical Bulletin. 2009;(S14):524-530.
Acknowledgements
The research was performed as part of the Integrated Scientific and Technical Programme with financial support from 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
Prokopyev S.A., Prokopyev E.S., Alekseeva O.L. Implementation of gravity-magnetic technology to process consolidated coal tailings. Ugol’. 2025;(12):27-29. (In Russ.). DOI: 10.18796/0041-5790-2025-12-27-29.
Paper Info
Received October 2, 2025
Reviewed October 18, 2025
Accepted October 30, 2025
