VISCOSITY STABLE SMECTITE CLAY SLURRY AND MIXTURE OF SMECTITE CLAY AND ONE OR MORE PHOSPHONATE USEFUL TO MANUFACTURE THE SLURRY

摘要

PPROBLEM TO BE SOLVED: To stabilize viscosity of clay slurry for a long time while leaving its fluidity. PSOLUTION: The smectite clay slurry comprises at least 2 wt.%, on an active clay basis, of one or more smectite clays, one or more phosphonate additives of about 0.5 to 15 wt.% based on the weight of the smectite clay on the active clay basis and water. PCOPYRIGHT: (C)2003,JPO