COAL PREPARATION
Original Paper
UDC 336. 201: 622.271.3 © V.I. Golik, 2024
ISSN 0041-5790 (Print) • ISSN 2412-8333 (Online) • Ugol’ – Russian Coal Journal, 2024, № 9, pp. 31-36
DOI: http://dx.doi.org/10.18796/0041-5790-2024-9-31-36
Title
LEACHING OF METALS FROM COALS OF RUSSIAN DONBASS
Authors
V.I. Golik
Moscow State Polytechnic University, Moscow, 107023, Russian Federation, e-mail: v.i.golik@mail.ru
Authors Information
Golik V.I. – Doctor of Engineering Sciences, Professor of Moscow State Polytechnic University, Moscow,
107023, Russian Federation, e-mail: v.i.golik@mail.ru
Abstract
The article is devoted to the topical topic of leaching metals from coal enrichment waste in the Russian Donbas. With the transition to new conditions of ownership, some of the coal deposits have become unprofitable for operation, which determines the need to find new ways to develop the reserves of the deposits, including lost substandard reserves and waste processing of previous years. Technological deposits can really replenish
the resource base of mineral raw materials and improve the environmental situation. The efficiency of metal leaching from coal mining and primary processing wastes is determined by solving mathematical models of mining technologies, taking into account ecological and economic components. The indicators of the treatment modes of mineral raw materials are compared, which differ in the place and time of the leaching process. The quantitative values of a multifactorial experiment to determine the dependence of metal extraction on the changed factors according to the Box – Benken plan are given. A certificate on the metal content in the districts is given. Full-factor models characterizing the dependence of leaching indicators on processing technologies have been obtained.
Indicators of metal leaching from coal enrichment tailings have been obtained. A new scheme of activation of leaching with vibration action on the activator has been developed. A model is proposed to determine the efficiency of utilization of coal enrichment tailings. It is proved that the leaching of metals from coal enrichment waste in high-speed activators-disintegrators is a promising direction for the development of the coal mining industry. It is concluded that the profitability of leaching metals from carbon waste will become obvious if the economic comparison of technology options takes into account the damage from waste storage on the earth’s surface. The research results may be in demand in the development of deposits of technologically exposed minerals.
Keywords
Coal, metal, processing, enrichment tailings, leaching, disintegrator, ecology, economy.
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For citation
Golik V.I. Leaching of metals from coals of Russian Donbass. Ugol’. 2024;(9):31-36. (In Russ.). DOI: 10.18796/0041-5790-2024-9-31-36.
Paper info
Received June 20, 2024
Reviewed August 15, 2024
Accepted August 26, 2024
