초록

The instant invention is directed to a method for reducing the formation of silica deposits in an aqueous system comprising adding an effective amount, preferably at least 0.1 ppm, of a carboxylic functional polyampholyte or the salt thereof to said aqueous system.

대표청구항 ▼

A method for reducing the formation of silica deposits in an aqueous system comprising adding to said aqueous system an effective amount of a carboxylic functional polyampholyte or the salt thereof, having an intrinsic viscosity of at least 1.0 dl/g. in 1.0M sodium chloride, prepared from 30 to 32.5

A method for reducing the formation of silica deposits in an aqueous system comprising adding to said aqueous system an effective amount of a carboxylic functional polyampholyte or the salt thereof, having an intrinsic viscosity of at least 1.0 dl/g. in 1.0M sodium chloride, prepared from 30 to 32.5 percent, by weight, of acrylic acid; 17.5 to 30 percent, by weight, of a cationic-containing monomer selected from the group consisting of dimethyldiallyl ammonium chloride, diethyldiallyl ammonium chloride and mixtures thereof; and 40 to 50 percent, by weight, acrylamide to retard polymerization of silica and reduce the formation of silica deposits in said aqueous system.