Method for mining coal using ammonia and nitrifying bacteria

Details Method for mining coal using ammonia and nitrifying bacteria Method for mining coal using ammonia and nitrifying bacteria

1979-12-05

1981-03-03

Purser, Ernest R.

Mining or in situ disintegration of hard material

In situ conversion of solid to fluid

Dissolving or chemical reaction

166246, 241 1, 435248, E21C 4104

Patent

active

042537037

ABSTRACT:
Subterranean coal seams are treated with ammonia to enhance methane removal and improve the mineability of coal. Residual ammonia remaining from the coal treatment is removed by contacting the coal seam with nitrifying bacteria after ammonia treatment and before mining is carried out.

REFERENCES:
patent: 3918761 (1975-11-01), Aldrich
patent: 4108722 (1978-08-01), Stover

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