Coal-water slurry and method for its preparation

Details Coal-water slurry and method for its preparation Coal-water slurry and method for its preparation

C - Chemistry, Metallurgy

10

L

44/10

C10L 1/32 (2006.01)

Patent

CA 1178442

ABSTRACT A deashed coal-water slurry and process for preparing the same containing 65-85 percent of solids and 0.01 - 2.4 weight percent of dispersing agent. The slurry is comprised of a coal compact whose coal particles have a particle size distribution in substantial accordance with a specified formula. The coal-water slurry has a relatively low viscosity of less than 4,000 centipoise at a 75 percent solids content and, when it is pumped at either a constant or an increasing shear rate, its viscosity decreases. Also disclosed are a pumping process and an electrophoretic deashing cell and process.

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