Method of controlling self-ignition of low rank coal

Details Method of controlling self-ignition of low rank coal Method of controlling self-ignition of low rank coal

1987-07-22

1988-07-26

Dees, Carl F.

Fuel and related compositions

Particulate

Treated to reduce spontaneous ignition

44592, C10L 524

Patent

active

047597720

ABSTRACT:
Self-ignition of low rank coal is inhibited by application of a permanganate salt, such as potassium permanganate, together with a phosphorus compound, such as a phosphoric or polyphosphoric acid. The inhibitors are applied in aqueous solution following drying of the particulate coal. The combination treatment is much more effective than the use of a permanganate salt alone.

REFERENCES:
patent: 1112547 (1914-10-01), Morin et al.
patent: 1799631 (1931-04-01), Mennie
patent: 4400176 (1983-08-01), Kutta

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