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Acrylic acid/2-acrylamido-2-methylpropylsulphonic acid/2-acrylamido-2-methylpropyl phosphonic acid polymers and their use as scale and corrosion inhibitors
Acrylic acid/2-acrylamido-2-methylpropylsulphonic acid/2-acrylamido-2-methylpropyl phosphonic acid polymers and their use as scale and corrosion inhibitors
Novel polymers having an intrinsic viscosity of 0.05 to 4.5 dI/ g in 1.0 M NaCI are prepared from:(A) 35 to 65% by weight of acrylic acid or methacrylic acid;(B) 15 to 45% by weight of 2-acrylamido-2-methyl-propyl- sulphonic acid or 2-methacrylamido-2-methyl-propylsulphonic acid; and(C) 15 to 25% by weight of 2-acrylamido-2-methyl-propyl phosphonic acid or 2-methacrylamido-2-methylpropylphos- phonic acid.;Corrosion and the precipitation of scale-forming salts in an aqueous solution is inhibited by adding to the system at least 0.1 mg/l of such a polymer.
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机译:在1.0 M NaCl中,特性粘度为0.05至4.5 dI / g的新型聚合物可通过以下方法制备:(A)35至65%重量的丙烯酸或甲基丙烯酸; ListItem> (B)15至45%的重量2 -丙烯酰胺基-2-甲基-丙基磺酸或2-甲基丙烯酰胺基-2-甲基-丙基磺酸; ListItem> UnorderedList>;和 ListItem> (C)15至25%(重量)的2-丙烯酰胺基-2-甲基-丙基膦酸或2-甲基丙烯酰胺基-2-甲基丙基膦酸。通过向体系中加入至少0.1mg / l的这种聚合物,可以抑制水溶液中的结垢盐的腐蚀和沉淀。
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