Abstract
This article examines the effects of the operation of the reactants, foaming agents with different chemical composition and molecular structure on the development of coal flotation regime entering the coking. High efficiency and selectivity of process of flotation with using as reagent of the technical product of petrochemistry «Oksal T-92» is established. The increased flotation activity and selectivity of the reagent foaming agents «Oksal T-92» are explained by the increased adsorption of dioxane alcohols and their formals due to their interaction with the polar centers of the coal surface in the form of hydrogen bonds. This fact ensures the preliminary hydrophobization of coal particles, which leads to an increase in the adsorption of the collector's reagent and an increase in the extraction of the combustible mass of coal into the concentrate, and a decrease in the organic mass loss of coal with flotation waste.
Keywords
Flotation of coals, reagents collectors, reagents foaming agents, efficiency, selectivity, extraction of combustible weight in concentrate, concentrate ash-content.