Authors: Z.R. Ismagilov, O.M. Gavriljuk

Title of the article: Comparative studies of industrial samples coal tarn

Year: 2022, Issue: 5, Pages: 22-29

Branch of knowledge: 2.6.12. Chemical technology of fuel and high-energy substances

Index UDK: 662.749.33

DOI: 10.26730/1999-4125-2022-5-22-29

Abstract: Coal tar is the only raw material of its kind, the processing of which makes it possible to obtain valuable chemicals: condensed polyaromatic (naphthalene, anthracene, pyrene, chrysene, etc.) and heterocyclic (quinoline, acridine, etc.) compounds. The results of the coal tar industrial samples fractional composition studies from JSC "EVRAZ" (Novokuznetsk) and JSC "Altai-Koks" (Zarinsk) by classical methods of analysis were obtained. Standard parameters characterizing the quality of coal tar – density, ash content, moisture content, insoluble in toluene substances , carbon and hydrogen - have been determined. Fractional analysis of the resin was carried out by dispersion in the temperature range of 25-400 ° C. The minimum content of the light+phenolic fraction for all the samples studied is approximately 1%. It was found that the fractional composition of the initial samples consists of pitch by more than 80%. The inverse correlation between the yield of coal pitch and the content of naphthalene+ absorption and anthracene fractions in the initial resin is shown. The obtained data on the group fractions composition confirm the need to use coke-chemical tar as a raw material source for obtaining valuable aromatic hydrocarbons, their mixtures and commercial products based on them, and the development of further scientific foundations of its deep processing is relevant.

Key words: coal tar fractional analysis coal tar pitch

Receiving date: 08.09.2022

Approval date: 01.10.2022

Publication date: 18.10.2022

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