Coal treatment process

Details Coal treatment process Coal treatment process

1979-11-13

1981-09-08

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 1R, 44 2, 241 5, 241 39, 106309, C10L 900, C10L 908, B02C 1906

Patent

active

042882311

ABSTRACT:
A process and apparatus for treating coal to produce micron-size coal particles having high surface reactivity and a low level of ash-forming impurities. The process involves grinding the coal in a substantially air tight fluid energy attrition mill to form a hydrophobic coal-fraction and a hydrophilic impurities-fraction, and separating the fractions by virtue of the impurities-fraction's affinity for water.

REFERENCES:
patent: 3404120 (1968-10-01), Gotshall
patent: 3796308 (1974-03-01), McIlhinney et al.
patent: 3863846 (1975-02-01), Keller, Jr. et al.
patent: 3908920 (1975-09-01), Irons et al.
patent: 4080176 (1978-03-01), Verschuur
patent: 4099929 (1978-07-01), Tippmer et al.
patent: 4164124 (1979-08-01), Taylor et al.
patent: 4192652 (1980-03-01), Smith
patent: 4219164 (1980-08-01), Taylor

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