Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing
Patent
1977-11-21
1979-03-27
Dees, Carl
Fuel and related compositions
Liquid fuels
Aluminum or heavy metal, other than lead, containing
44 1G, 241 1, 241 23, C10L 910, B02C 1900
Patent
active
041463668
ABSTRACT:
A method of removing gangue materials from coal characterized by the steps of comminuting and sizing all of the material to have most particles of a size smaller than one hundred microns; slurrying in an alcohol containing 1 to 4 carbon atoms; thereafter separating by settling velocity separation into an overflow stream containing most of the valuable coal products for storage as a fuel or the like and an underflow containing the gangue materials with some larger sized coal particles; thereafter diluting the underflow with alcohol and separating by settling velocity separation or the like into an overflow stream containing the coal for storage and an underflow containing mostly gangue material with some coal particles; separating the alcohol from the gangue materials and returning the alcohol to the process. The gangue materials can be employed as a fuel if they contain enough of the entrained coal particles.
Preferably, the comminution to effect mostly particles smaller than 100 microns is effected by a multi-step process including crushing and screening to drying size; drying; and separating into top and bottom streams, the hot latter being sent to a thermal-chemical reactor employing cool alcohol and thermal shock to effect partial comminution; and further comminution to effect the particle sizes less than 100 microns.
Also disclosed are specific details of the process to effect a low cost non-polluting carbonaceous fuel, feed stock or hydrocarbon fuel extender.
REFERENCES:
patent: 1679857 (1928-08-01), France
patent: 3250016 (1966-05-01), Agarwal
patent: 3815826 (1974-06-01), Aldrich et al.
patent: 3991943 (1976-11-01), Rohrbach
patent: 4030893 (1977-06-01), Keller
Dees Carl
The Keller Corporation
LandOfFree
Method of removing gangue materials from coal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of removing gangue materials from coal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of removing gangue materials from coal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1820241