1380807 Flocculating LUBRIZOL CORP 8 Feb 1972 [12 Feb 1971] 5862/72 Heading C1C Solids in aqueous suspension (e.g. kaolin suspensions or sewage) are flocculated by adding thereto a water-soluble polymer or copolymer containing units of the formula wherein R = H, lower (up to 7 C atoms) alkyl or substituted lower alkyl, RSP3/SP = H or lower alkyl ; RSP4/SP = lower alkyl; M = H or one equivalent of a cation (e.g. Na, K, NH 4 ). An inorganic flocculant, e.g. Fe 2 (SO 4 ) 3 , Al 2 (SO 4 ) 3 or Ca(OH) 2 may be added. The copolymer may comprise acrylic acid, methacrylic acid, methacrylamide, N- methylacrylamide, or N-(1,1-dimethyl-3-dimethylaminobutyl) acrylamide. The copolymer may be quaternized. The substituted radical may include halide, hydroxy, alkoxy, keto, carboxy, carbalkoxy, amide, amino, nitro, cyano, hydrocarbylthio, sulphoxy, sulphone and sulphonic acid and amide groups.
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机译：1380807絮凝LUBRIZOL CORP 1972年2月8日[1971年2月12日] 5862/72标题C1C通过向水溶性悬浮液（例如高岭土悬浮液或污水）中的固体添加以下分子式进行絮凝：低级（至多7个碳原子）烷基或取代的低级烷基，R 3 = H或低级烷基; R 4 =低级烷基; M ＝ H或一当量的阳离子（例如Na，K，NH 4）。无机絮凝剂，例如可以添加Fe 2（SO 4）3，Al 2（SO 4）3或Ca（OH）2。该共聚物可以包含丙烯酸，甲基丙烯酸，甲基丙烯酰胺，N-甲基丙烯酰胺或N-（1,1-二甲基-3-二甲基氨基丁基）丙烯酰胺。共聚物可以被季铵化。取代的基团可以包括卤化物，羟基，烷氧基，酮基，羧基，烷氧基，酰胺基，氨基，硝基，氰基，烃硫基，亚砜基，砜和磺酸以及酰胺基团。
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