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U.S. Department of Energy
Office of Scientific and Technical Information

Coal-water slurry and method for its preparation

Patent ·
OSTI ID:5296265

A deashed coal-water slurry is disclosed 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.

Assignee:
Alfred University Research Foundation Inc.
Patent Number(s):
US 4416666
OSTI ID:
5296265
Country of Publication:
United States
Language:
English