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G. Harris, J. Diao, D. Fuerstenau (1995)
Coal Flotation with Nonionic SurfactantsCoal Preparation, 16
V.N. Tyurnikova, M.E. Naumov (1982)
Fizicheskie i khimicheskie osnovy pererabotki mineral’nogo syr’ya
Coals supplied for coking are enriched until the mineral content is 7–9%. With greater mechanization of coal extraction, the content of fine classes (<0.5 mm) in regular coal sent for enrichment is 15–35%. Flotation provides an effective means of enriching fine coal. However, flotation is expensive (on account of the reagent cost) and environmentally problematic. In addition, because oil-industry wastes of variable group chemical composition are used as the reagents, flotation is associated with considerable loss of organic mass of the coal and chemical compounds with the waste. The use of activators is a promising means of increasing coal extraction in the concentrate, with simultaneous decrease in the consumption of expensive flotation reagents.
Coke and Chemistry – Springer Journals
Published: Aug 7, 2008
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