Process and apparatus for chemically removing ash from coal

Details Process and apparatus for chemically removing ash from coal Process and apparatus for chemically removing ash from coal

1982-03-09

1984-01-03

Gantz, Delbert E.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 1R, 423461, C10L 902

Patent

active

044240627

ABSTRACT:
Finely divided ash-containing coal is immersed in an aqueous solution of hydrochloric acid or citric acid, and acidic ammonium fluoride to cause the ash to react with the acid and the acidic ammonium fluoride, and the deashed coal is thereafter separated from the solution.

REFERENCES:
patent: 2808369 (1957-10-01), Hickey
patent: 4071328 (1978-01-01), Sinke
patent: 4305726 (1981-12-01), Brown, Jr.
patent: 4328002 (1982-05-01), Bender

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