POLYETHER GLYCOL ESTERS OF POLYCARBOXYLIC ACIDS AS RHEOLOGICAL ADDITIVESCOAL-WATER SLURRIES

摘要

Coal-water slurries containing a rheological additive are disclosed. The rheological additives employed for the preparation of the present coal-water slurries are the reaction product of a polycarboxylic organic acid and a polyether glycol. Salts of these reaction products may also be employed. The rheological additive is employed in an amount from about 0.1 to about 4 percent by weight of the slurry, the slurry having from about 60 to about 80 percent by weight solids, the balance being water.