ABSTRACT
Effective use of coal of various technological brands is possible only after their enrichment, since increased ash and sulfur content reduce the usefulness of the coal, and if they are used in coking with ash more than 11%, the metallurgical coke obtained from these coals will not meet the requirements of blast-furnace production. Indicators of coal fine coal enrichment products are largely determined by the reagent mode used. In this work, studies were conducted to study the effect of the group chemical composition of the blowing agent reagents on the flotation rates. As the initial flotation feed, coal fines were investigated at the central processing plant Belovskaya with an ash content of 18.2%. It has been established that to obtain high indicators of coal flotation products, it is necessary to apply the technical product of petrochemistry Oxal T-80 as a blowing agent reagent. Its application allows to increase the extraction of combustible mass in concentrate by 1.9-2.5% and reduce the loss of organic matter of coal with flotation waste.
