The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 1985
Filed:
Apr. 15, 1983
Ju-Nam Chew, Dallas, TX (US);
Joseph G Savins, Dallas, TX (US);
Mobil Oil Corporation, New York, NY (US);
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.