公开(公告)号：EP4031498A1

公开(公告)日：2022-07-27

申请号：EP20772410.5

申请日：2020-09-16

申请人： Oxford University Innovation Limited

发明人： HANKINS, Nicholas Peter ,  COLLEY, Steve ,  SHEN, Licheng

IPC分类号： C02F1/68 ,  B01J20/26 ,  C11D1/14 ,  C02F1/56 ,  C02F1/28 ,  C02F101/20 ,  C02F101/22

公开(公告)号：EP3221270A1

公开(公告)日：2017-09-27

申请号：EP15800906.8

申请日：2015-11-18

申请人： Oxford University Innovation Limited

发明人： SHEN, Licheng ,  HANKINS, Nicholas

IPC分类号： C02F1/56 ,  C02F1/58 ,  C02F1/68 ,  C11D1/14 ,  C11D1/40 ,  C11D3/37 ,  C02F1/54 ,  C08F226/04 ,  C02F101/10 ,  C02F101/16 ,  C02F101/20 ,  C02F101/22 ,  C02F101/30 ,  C02F103/10 ,  C02F103/30 ,  C02F103/16

CPC分类号： C02F1/56 ,  C02F1/547 ,  C02F1/683 ,  C02F2101/105 ,  C02F2101/163 ,  C02F2101/203 ,  C02F2101/206 ,  C02F2101/22 ,  C02F2101/306 ,  C02F2101/308 ,  C02F2103/10 ,  C02F2103/16 ,  C02F2103/30 ,  C02F2305/04 ,  C08F226/04 ,  Y02P20/582

摘要： A complex comprising a charged species, a polymer comprising ionisable groups, and an ionic surfactant, wherein the charged species is a positively charged species and the ionic surfactant is an anionic surfactant, or the charged species is a negatively charged species and the ionic surfactant is a cationic surfactant. The charged species may comprise a metal such as cadmium, chromium, copper, magnesium, nickel, arsenic, lead, mercury, selenium, silver or zinc. The anionic surfactant may comprise an anionic functional group selected from sulphate, sulphonate, phosphate, phosphonate and carboxylate. The cationic surfactant may comprise a cationic functional group selected from a quaternary ammonium or a cationic nitrogen containing group. The polymer comprising ionisable groups may be selected from the group of polyethyleneimine (PEI), polydiallyldimethylammonium chloride (PolyDADMAC) or polystyrene sulphonate (PSS). A process comprising treating a solution with an ionic surfactant and a polymer comprising ionisable groups, wherein the solution comprises a charged species, to form a complex as claimed is also provided. Application of such treatment to the removal of heavy metal ions from aqueous effluents is also provided; such removal can be achieved via filtration of the complex from the effluent.

摘要翻译： 包含带电物质，包含可离子化基团的聚合物和离子表面活性剂的复合物，其中带电物质是带正电的物质，离子表面活性剂是阴离子表面活性剂，或者带电物质是带负电的物质，离子表面活性剂是 阳离子表面活性剂 带电物质可以包括诸如镉，铬，铜，镁，镍，砷，铅，汞，硒，银或锌的金属。 阴离子表面活性剂可以包含选自硫酸盐，磺酸盐，磷酸盐，膦酸盐和羧酸盐的阴离子官能团。 阳离子表面活性剂可以包含选自季铵或阳离子含氮基团的阳离子官能团。 包含可离子化基团的聚合物可以选自聚乙烯亚胺（PEI），聚二烯丙基二甲基氯化铵（PolyDADMAC）或聚苯乙烯磺酸盐（PSS）。 还提供了一种包括用离子型表面活性剂和包含可电离基团的聚合物处理溶液以形成如权利要求所述的复合物的方法，其中所述溶液包含带电物质。 还提供了这种处理从含水流出物中去除重金属离子的应用; 这种去除可以通过从流出物中过滤复合物来实现。