Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1991-07-24
1993-08-17
Lithgow, Thomas M.
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
210697, 210768, 210769, 209 5, 209 10, 209 17, 209164, 209166, 44626, B03D 300, B01D 2100, B01D 2128, C10L 910
Patent
active
052365964
ABSTRACT:
A method and apparatus for dewatering an aqueous coal slurry includes imparting high shear forces to the aqueous coal slurry in the presence of a peptizing agent to render coal particles hydrophobic by stripping clay from the coal particles and peptizing the clay in the aqueous medium of the slurry. The slurry is separating to recover coal particles and the aqueous medium is draining medium from the hydrophobic surface of the coal particles.
REFERENCES:
patent: 3408293 (1968-10-01), Dajani
patent: 4167397 (1979-09-01), Grant
patent: 4195975 (1980-04-01), Homuro
patent: 4267046 (1981-05-01), Stoev
patent: 4274963 (1981-06-01), Purvis
patent: 4282088 (1981-08-01), Ennis
patent: 4284413 (1981-08-01), Capes
patent: 4330413 (1982-05-01), Wilson
patent: 4416666 (1983-11-01), Funk
patent: 4437861 (1984-03-01), Ishizuka
patent: 4477353 (1984-10-01), Messer
patent: 4521218 (1985-06-01), Greenwald
patent: 4537599 (1985-08-01), Greenwald
patent: 4543104 (1985-09-01), Brown
patent: 4552568 (1985-11-01), Igarashi
patent: 4555329 (1985-11-01), Sykes
patent: 4559060 (1985-12-01), Muroi
patent: 4579664 (1986-04-01), Cardini
patent: 4618414 (1986-10-01), Hartan
patent: 4662894 (1987-05-01), Greenwald
patent: 4701266 (1987-10-01), Janka
patent: 5089142 (1992-02-01), Turunc
Thrush, Paul; "Dictionary of Mining, Mineral and Related Terms" US Dept. of Interior p. 327 (1968).
Lithgow Thomas M.
Poff Clifford A.
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