Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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INFLUENCE OF ORGANIC AND IN ORGANIC COMPOUNDS ON FLOTATION OF LOW COAL RANK

Chuprova L.V. 1 Mullina E.R. 1 Mishurina O.A. 1
1 Federal state budget educational institution of higher professional education “Magnitogorsk state technical university named after G. I. Nosov”
The article deals with the development of selective reagent modes of flotation of low coal ranks of Kuznetsk and Donets Basins on the basis of the influence of organic and inorganic compounds on physicochemical and flotation properties of these coals. It was proved that the presence of mineral impurities and oxygen containing compounds in the gas coals in question as well as the presence of microcracks and large voids cause energy unsaturation of their surfaces. The authors studied the influence of compound ethers structure on their adsorption and flotation characteristics. It was found that application of compound ethers of isomeric structure improves the quality of coal concentrates. It was also proved that coal surface modifying with inorganic sulphur-containing salines makes it possible to reduce the content of pyritic impurities in coal concentrates.