Process for the beneficiation of coal by selective caking

Details Process for the beneficiation of coal by selective caking Process for the beneficiation of coal by selective caking

C - Chemistry, Metallurgy

10

L

44/48

C10L 9/00 (2006.01) B03B 1/04 (2006.01) C10L 5/14 (2006.01)

Patent

CA 1329987

ABSTRACT OF THE DISCLOSURE: A process is disclosed for the beneficiation of coal by selective caking, in which process a caking mixture is employed consisting of: one or more solvents selected from among light hydrocarbons having boiling points not higher than 70°C; a non-ionic, oil-soluble additive obtained from controlled propoxylation of the penolic fractions derived from coke-oven tars; and possibly one or more heavy co-caking agents selected from among coal-derived oils having boiling points between 200 and 400°C, or the residual products of petroleum refining or mixtures of the same. The process allows much higher caking rates, lower amounts of caking agent employed, higher dehydration and less amount of minerals to be obtained in the product.

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