Dewatering of solid residues of carbonaceous materials

Details Dewatering of solid residues of carbonaceous materials Dewatering of solid residues of carbonaceous materials

1980-07-28

1982-04-06

Hruskoci, Peter A.

Chemistry: physical processes

Physical processes

Agglomerating

209 5, 210710, 210725, 210727, 210770, 75 3, C22B 114

Patent

active

043233651

ABSTRACT:
Process for removal of water from a mixture of water and certain solid residues of carbonaceous material, such as a coal char-water slurry, which comprises mixing the slurry with an acid, preferably hydrochloric acid, a surfactant, preferably water-immiscible such as lecithin, and an organic compound such as a liquid hydrocarbon, e.g. mineral spirits, causing the char to agglomerate, and thereby facilitating separation of the char from the mixture, as by screening, and filtering or centrifuging.

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patent: 4277252 (1981-07-01), Dudt
The Condensed Chemical Dictionary, 8th Edition, Von Nostrand Reinhold Company, 1971, p. 513.

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