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102 条记录 (耗时 0.019 秒)

    Reverse osmosis membranes
    51.
    发明公开
    Reverse osmosis membranes 失效
    Umkehrosmose-Membranen。

    公开(公告)号：EP0275027A2

    公开(公告)日：1988-07-20

    申请号：EP88100109.3

    申请日：1988-01-07

    申请人： FILMTEC CORPORATION ,  THE DOW CHEMICAL COMPANY

    发明人： Cadotte, John E. ,  Schmidt, Donald L.

    IPC分类号： B01D67/00 ,  B01D71/56 ,  B01D71/60 ,  C08G69/48 ,  C08F8/30 ,  C08J7/12

    CPC分类号： B01D67/0093 ,  B01D69/125 ,  B01D71/56 ,  B01D2323/30

    摘要： An improved reverse osmosis membrane and process for making the same is described. The membrane is prepared by treating a polymer bearing primary amine groups with nitrous acid or a diazonium compound so as to react the resulting diazonium groups with other groups present. The resulting membrane possesses improved chlorine resistance. When the nitrous acid treatment is employed, the water flux of a polyamide membrane is frequently increased with little or no effect on the salt rejection of the membrane.

    摘要翻译： 描述了改进的反渗透膜及其制造方法。 通过用亚硝酸或重氮化合物处理带有伯胺基团的聚合物以使得到的重氮基团与存在的其它基团反应来制备膜。 所得膜具有改善的耐氯性。 当使用亚硝酸处理时，聚酰胺膜的水通量常常增加，对膜的排除盐几乎没有影响或没有影响。

    RAW MATERIAL LIQUID CONCENTRATION SYSTEM
    54.
    发明公开
    RAW MATERIAL LIQUID CONCENTRATION SYSTEM 审中-公开

    公开(公告)号：EP3978103A1

    公开(公告)日：2022-04-06

    申请号：EP20814976.5

    申请日：2020-05-29

    申请人： Asahi Kasei Kabushiki Kaisha

    发明人： FUJITA, Mitsuru ,  MIKAWA, Masato ,  HOTTA, Daisuke

    IPC分类号： B01D61/00 ,  B01D61/36 ,  B01D63/02 ,  B01D69/00 ,  B01D69/08 ,  B01D69/10 ,  B01D69/12 ,  B01D71/34 ,  B01D71/36 ,  B01D71/42 ,  B01D71/52 ,  B01D71/56 ,  B01D71/58 ,  B01D71/60 ,  B01D71/62 ,  B01D71/64 ,  B01D71/68 ,  B01D71/72 ,  B01D71/76 ,  A61K38/05

    摘要： Provided is a system that can prevent or reduce adhesion of a raw material component to a membrane surface and increase the recovery rate of the raw material component after concentration. A raw material liquid concentration system for a medicine production process is provided with: a forward osmosis membrane unit having a forward osmosis membrane, and a raw material liquid side space and an inductive solution side space which are separated from each other by the forward osmosis membrane; a raw material liquid channel for supplying, to the raw material liquid side space, a raw material liquid containing a solvent and a solute; an inductive solution channel for supplying, to the inductive solution side space, an inductive solution containing an inductive material; a concentrated liquid channel for removing a concentrated raw material liquid from the forward osmosis membrane unit; and a diluted inductive solution channel for removing a diluted inductive solution from the forward osmosis membrane unit. The forward osmosis membrane produces the concentrated raw material liquid and the diluted inductive solution by moving the solvent in the raw material liquid into the inductive solution and by moving the inductive material in the inductive solution into the raw material liquid.

    FORWARD OSMOSIS MEMBRANE, FORWARD OSMOSIS MEMBRANE MODULE, AND MANUFACTURING METHOD THEREOF
    55.
    发明公开
    FORWARD OSMOSIS MEMBRANE, FORWARD OSMOSIS MEMBRANE MODULE, AND MANUFACTURING METHOD THEREOF 审中-公开

    公开(公告)号：EP3978102A1

    公开(公告)日：2022-04-06

    申请号：EP20813249.8

    申请日：2020-05-29

    申请人： Asahi Kasei Kabushiki Kaisha

    发明人： HOTTA, Daisuke

    IPC分类号： B01D61/00 ,  B01D63/02 ,  B01D69/02 ,  B01D69/08 ,  B01D69/10 ,  B01D69/12 ,  B01D71/34 ,  B01D71/42 ,  B01D71/52 ,  B01D71/56 ,  B01D71/60 ,  B01D71/62 ,  B01D71/64 ,  B01D71/68 ,  B01D71/72

    摘要： Provided are a forward osmosis membrane, a forward osmosis membrane module, and a manufacturing method thereof, wherein a forward osmosis membrane, which achieves an extremely favorable reduction in the reverse diffusion of salt compared to the prior art and has a predetermined water permeability, is developed thereby bringing about: practicality in that a liquid-like raw material solution used in actual concentration operations can be concentrated with suppressed diffusion of an induction solution even when used multiple times; and durability in that the performance of the membrane can be maintained within a predetermined range even when a raw material solution having an osmotic pressure is concentrated multiple times. According to an aspect, provided is a forward osmosis membrane having a polymeric separation active layer disposed on the surface of a microporous support membrane, wherein when purified water is placed as a raw material solution on the separation active layer side and 3.5 mass% of a sodium chloride aqueous solution is placed as an induction solution on the support membrane side, with the forward osmosis membrane therebetween, the amount R1 of reverse diffusion of salt into the raw material solution is 0.65 g/(m 2 ×hr) or less, and the amount F1 of water permeation into the induction solution is at least 3.5 kg/(m 2 ×hr).