Coal recovery process

Details Coal recovery process Coal recovery process

1990-12-06

1992-06-23

Willis, Jr., Prince

Fuel and related compositions

Solid carbonaceous fuel dispersed in a liquid medium

The liquid medium is, or contains, hydrocarbon

44280, 44505, 44622, 252 60, 252 61, C10L 132

Patent

active

051239310

ABSTRACT:
A method for the beneficiation of coal by selective agglomeration and the beneficiated coal product thereof is disclosed wherein coal, comprising impurities, is comminuted to a particle size sufficient to allow impurities contained therein to disperse in water, an aqueous slurry is formed with the comminuted coal particles, treated with a compound, such as a polysaccharide and/or disaccharide, to increase the relative hydrophilicity of hydrophilic components, and thereafter the slurry is treated with sufficient liquid agglomerant to form a coagulum comprising reduced impurity coal.

REFERENCES:
patent: 3988120 (1976-10-01), Chia
patent: 4426281 (1984-01-01), Meyers et al.
patent: 4484928 (1984-11-01), Keller, Jr.
patent: 4702824 (1987-10-01), Abadi
patent: 4770766 (1988-09-01), Keller, Jr. et al.
patent: 5030340 (1991-07-01), Panzer
Kirk-Othmer Encyclopedia of Chemical Technology, 3rd Edition, vol. 6, pp. 266-267, 1979.
Van Nostrand Reinhold Encyclopedia of Chemistry, 4th Edition, 1984, p. 793.

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