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公开(公告)号：EP3068733A1
公开(公告)日：2016-09-21
申请号：EP14860335.0
申请日：2014-10-06
申请人： Nalco Company
CPC分类号： C02F9/00 , B01D61/025 , B01D61/027 , B01D61/14 , B01D2311/04 , B01D2311/2642 , B01D2311/2665 , B01D2311/2688 , C02F1/285 , C02F1/441 , C02F1/442 , C02F1/444 , C02F1/5236 , C02F1/56 , C02F1/683 , C02F2101/103 , C02F2101/106 , C02F2101/20 , C02F2101/203
摘要： The invention provides methods and compositions for separating metals from a liquid medium, the method uses a copolymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals are disclosed. The treated liquid is then passed through a filtration system. The scavenging effect of the combination of the treatment with the filtration is unexpectedly greater than the sum of its parts. MS
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公开(公告)号：EP2203391A1
公开(公告)日：2010-07-07
申请号：EP08839112.3
申请日：2008-10-10
申请人： Nalco Company
IPC分类号： C02F1/44 , C02F1/52 , C02F1/56 , C02F1/68 , C02F9/00 , C02F101/32 , C02F103/10
CPC分类号： C02F1/444 , C02F1/441 , C02F1/5272 , C02F1/56 , C02F1/682
摘要： A method of enhancing flux of tailings settling pond water from an oil sands process through a membrane separation system and purifying the water comprising is disclosed. The process comprises the following steps: (a) treating the water with an effective amount of one or more water-soluble cationic polymers, amphoteric polymers, zwitterionic polymers, or a combination thereof; (b) passing the treated water through a membrane separation system; and (c) optionally, passing the permeate from step (b) through an additional membrane separation system.
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