Authors: T.G Cherkasova, D.A. Barantsev

Title of the article: Distribution of chemical elements in granulometric fractions of coal preparation waste of Berezovskaya JSC CPP

Year: 2023, Issue: 4, Pages: 26-40

Index UDK: 539.215.2:546[65+289]:62-665.4

DOI: 10.26730/2618-7434-2023-4-26-40

Abstract: The influence of such factors as high requirements for the quality of coal on the world market, sanctions pressure, the transition to «green energy», the formation of large volumes of waste from the coal industry and anthropogenic pressure on the environment require domestic coal industry enterprises to introduce new technologies that reduce production costs and allow organizing the production of coal processing, as well as waste into products high repartitions. In this regard, the technologies of complex processing of coal mining and coal refining waste in order to extract valuable components, such as rare and rare earth elements (REE), have the greatest potential. In this regard, an important role in the selection of possible ways of waste processing is played by knowledge of the elemental and mineralogical compositions of the raw materials. This paper presents the results of granulometric analysis of flotation and industrial product samples taken from various stages of the coal enrichment process line of the enterprise of JSC CPP «Berezovskaya», urban village. Berezovsky. The content of rock-forming oxides and the elemental, phase compositions of each fraction are determined. Based on the data obtained, a conclusion was made about the efficiency of sieving in order to obtain coal concentrate with an ash content of 33.4% by weight, as well as fractions with an increased content of total REE and germanium concentrate.

Key words: waste from coal mining coal preparation and coal refining ash slags elemental spectrochemical radiographic granulometric analysis concentration germanium rare earth elements

Receiving date: 15.09.2023

Approval date: 26.11.2023

Publication date: 25.12.2023

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