Abstract
Trace elements are standard indicators of coal quality. Their distribution in coal is determined by means of the petrographic composition and ash content. However, despite extensive research, the dependence of the trace-element concentrations on these parameters has not been established. Physicochemical functions that relate the trace-element concentrations to the petrographic composition and ash content are introduced in the present work. The analysis is based on redox reactions in the organic system. The basic relations of the trace elements with physicochemical parameters are considered. The physicochemical parameters are regarded here as independent characteristics of the state of the coal, specified by its surroundings. Trace elements may be concentrated in coal in anaerobic conditions, outside of the peat-forming level—that is, in diagenesis.
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Original Russian Text © L.A. Admakin, 2015, published in Koks i Khimiya, 2015, No. 3, pp. 11–19.
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Admakin, L.A. Concentration of trace elements in coal. Coke Chem. 58, 88–95 (2015). https://doi.org/10.3103/S1068364X15030023
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DOI: https://doi.org/10.3103/S1068364X15030023