Procedure for scale inhibition in systems susceptible to fouling and new antifouling agents for said process.

摘要

A process for treating an aqueous liquid having therein forming calcium salts of scabs, comprising adding to said aqueous liquid an inhibitory amount of a scab antifouling polymer comprising: (A) monomer units 1,2- dihidroxi3-butene, and (B) at least one monomer unit derived from the group consisting of maleic acid, acrylic acid, acrylamide, methacrylic acid, itaconic acid, vinylsulfonic acid, styrenesulfonic acid, N-tert-butylacrylamide, butoxymethylacrylamide , N, N-dimethylacrylamide, sodioacrilamidometil-propane sulfonic acid, and salts thereof, with the proviso that said polymeric additive does not include the monomer unit - (CH2 -CH = CHCH2-O) -.