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

1981-07-31

1983-11-22

Howard, Jacqueline V.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

406197, C10L 132

Patent

active

044166664

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.

REFERENCES:
patent: 4104035 (1978-08-01), Cole et al.
patent: 4282006 (1981-04-01), Funk

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