| abstract |
(57) [Summary]nA method for controlling scale deposits in aqueous systems. The method includes adding a scale inhibitor to the aqueous system such that the amount of the scale inhibitor in the aqueous system is less than or equal to about 1000 ppm, and / or forming in the aqueous system. Wherein the scale inhibitor comprises at least one of a polyvalent metal silicate and a polyvalent metal carbonate, the aqueous system has a pH of at least about 9, and the scale-forming agent The average particle size of the inhibitor is less than about 3 microns. The method includes adding a scale inhibitor to the aqueous system and / or forming in the aqueous system, and adding a copolymer of maleic anhydride and isobutylene, wherein the scale forming agent is added. The inhibitor comprises at least one of a polyvalent metal silicate and a polyvalent metal carbonate. A composition for the above method. |