Method for comminuting bituminous coal using an aqueous methanol

Details Method for comminuting bituminous coal using an aqueous methanol Method for comminuting bituminous coal using an aqueous methanol

1983-04-15

1985-08-06

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

241 21, 241 29, 299 5, B02C 1900

Patent

active

045330840

ABSTRACT:
This invention is a process for comminuting run-of-mine crushed coal by contacting the coal with an aqueous methanol solution for a time sufficient to comminute a substantial portion of the coal to a predetermined particle size. Another aspect of this invention is a process for slurry mining coal which comprises contacting the coal in-situ with an aqueous methanol solution for a time sufficient to comminute a portion of the coal and to form a slurry, and then conveying the slurry to a receiving vessel where the comminuted coal is recovered. Still another aspect of this invention, is to transport the comminuted coal having a desired particle size in slurry form using an aqueous methanol solution as the slurry medium wherein there is further comminution of the coal to improve its burning characteristics.

REFERENCES:
patent: 3815826 (1974-06-01), Aldrich et al.
patent: 4400034 (1983-08-01), Chew
"Application of . . . Particle Coal", Lawler et al., 3-1978.

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