Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Sorting special items or sorting by methods and apparatus...
Patent
1978-04-19
1980-06-17
Knowles, Allen N.
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Sorting special items or sorting by methods and apparatus...
209576, B07C 502
Patent
active
042082730
ABSTRACT:
A method is disclosed for the separation of coal from run of mine (ROM) coal containing particles of coal and refuse, which comprises conditioning the ROM coal with a coupling agent capable of selectively coating the particulate coal to the substantial exclusion of coating the refuse, which coupling agent is at least one alcohol containing from about 6 to about 22 carbon atoms. Combined with said coupling agent is a fluorescent dye in a quantity to make the coated particles of coal fluoresce upon excitation to a degree sufficient to distinguish the coated coal particles from the substantially non-coated refuse. Exciting (e.g. as with ultraviolet light) the fluorescent dye coupled to the coal particles induces fluorescence and enables separating the fluorescing, coated coal particles from substantially non-fluorescing, non-coated refuse particles.
REFERENCES:
patent: 1678884 (1928-07-01), Sweet
patent: 2967614 (1961-01-01), Nury et al.
patent: 3346111 (1967-10-01), Thompson et al.
patent: 3356211 (1967-12-01), Mathews
patent: 3472375 (1969-10-01), Mathews
patent: 3795310 (1974-03-01), Buchot
patent: 3901793 (1975-08-01), Buchot
patent: 3936188 (1974-02-01), Sawyer
patent: 3992287 (1976-11-01), Rhys
Messenger David F.
Moudgil Brij M.
Bisson Barry A.
Knowles Allen N.
Occidental Research Corporation
LandOfFree
Separation of coal from waste material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Separation of coal from waste material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of coal from waste material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-474019