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    Process for producing composite semipermeable membrane employing a polyfunctional amine solution and high flash point - solvent
    1.
    发明授权
    Process for producing composite semipermeable membrane employing a polyfunctional amine solution and high flash point - solvent 失效
    使用多官能胺溶液和高闪点溶剂制备复合半透膜的方法

    公开(公告)号：US5324538A

    公开(公告)日：1994-06-28

    申请号：US849336

    申请日：1992-03-11

    申请人： Seriya Takahashi ,  Yoshishige Fujii ,  Tadahiro Uemura

    发明人： Seriya Takahashi ,  Yoshishige Fujii ,  Tadahiro Uemura

    IPC分类号： B01D71/82 ,  B01D69/12 ,  B01D71/56 ,  C08G69/26 ,  C08G69/46 ,  B05D3/04

    CPC分类号： B01D69/125

    摘要： A process of producing a composite semipermeable membrane which includes applying a polyfunctional amine solution and a polyfunctional acid halide solution in a hydrocarbon-based solvent having a flash point of not lower than 10.degree. C. on a surface of a microporous substrate to allow interfacial polycondensation reaction so as to form a cross-linked polyamide-based ultra-thin membrane superposed on the microporous substrate, then blowing a gas on the surface of the ultra-thin membrane so as to evaporate the hydrocarbon-based solvent, which gas has a velocity at the surface of 2-20 m/sec., a temperature of 10.degree.-80.degree. C. that is lower than the flash point of the hydrocarbon-based solvent, and an absolute humidity of not less than 1 g of water per 1 kg of dry gas.

    摘要翻译： 一种制备复合半透膜的方法，该方法包括在微孔基材的表面上将多官能胺溶液和多官能酰卤溶液涂布在闪点不低于10℃的烃基溶剂中以允许界面缩聚 反应，形成叠加在微孔基材上的交联聚酰胺系超薄膜，然后在超薄膜的表面吹入气体，使烃类溶剂蒸发，该气体具有速度 以2-20m / sec的表面，比碳氢化合物溶剂的闪点低10℃-80℃的温度，每1个不少于1g水的绝对湿度 kg干燥气体。

    Process of producing composite semipermeable membrane
    2.
    发明授权
    Process of producing composite semipermeable membrane 失效
    生产复合半透膜的工艺

    公开(公告)号：US5051178A

    公开(公告)日：1991-09-24

    申请号：US415347

    申请日：1989-09-07

    申请人： Tadahiro Uemura ,  Hideo Fujimaki ,  Toshihiro Ikeda

    发明人： Tadahiro Uemura ,  Hideo Fujimaki ,  Toshihiro Ikeda

    IPC分类号： B01D71/82 ,  B01D69/12 ,  B01D71/56

    CPC分类号： B01D69/125

    摘要： Alkyldiamine, 1,3,5-trihydroxybenzene or 1,3-dihydroxybenzene is added as a copolymerization component to a polyfunctional aromatic amine component in the amount of 1-20% by weight with respect to the polyfunctional aromatic amine in producing a composite semipermeable membrane by laminating on a microporous substrate a polyamide formed by interfacial polycondensation between a polyfunctional aromatic amine and a polyfunctional acid halide. The composite semipermeable membrane has improved oxidation resistance while retaining excellent separation selectivity and high permeability of the crosslinked polyamide-based composite semipermeable membrane. The composite semipermeable membrane is used for desalination of brackish and sea water.

    摘要翻译： PCT No.PCT / JP89 / 00019 Sec。 371日期：1989年9月7日 102（e）1989年9月7日PCT PCT 1月10日PCT公布。 公开号WO89 / 06153 日期：1989年7月13日。烷基二胺，1,3,5-三羟基苯或1,3-二羟基苯作为共聚组分加入到多官能芳族胺组分中，其量相对于多官能芳族化合物为1-20重量％ 胺通过在微孔基材上层叠通过多官能芳族胺和多官能酰卤之间的界面缩聚形成的聚酰胺来制备复合半透膜。 复合半透膜具有改善的抗氧化性，同时保持交联的聚酰胺基复合半透膜的优异的分离选择性和高渗透性。 复合半透膜用于淡化咸水和海水。

    Semipermeable membrane treated with modified vinyl polymer
    4.
    发明授权
    Semipermeable membrane treated with modified vinyl polymer 失效
    用改性乙烯基聚合物处理的半透膜

    公开(公告)号：US4478717A

    公开(公告)日：1984-10-23

    申请号：US382566

    申请日：1982-05-27

    申请人： Masaru Kurihara ,  Noriho Harumiya ,  Tadahiro Uemura

    发明人： Masaru Kurihara ,  Noriho Harumiya ,  Tadahiro Uemura

    IPC分类号： B01D67/00 ,  B01D31/00

    CPC分类号： B01D67/0088

    摘要： A membrane treating agent for rejuvenating and improving a rejection performance of a semipermeable membrane, which contains an effective amount of a modified vinyl polymer having acetoxy groups and at least one group represented by the Formula (I) and/or (II): ##STR1## wherein R is a radical selected from the group consisting of aliphatic, aromatic and heterocyclic radicals having from 1 to 9 carbon atoms, and n is an integer from 1 to 3.Valuable modified vinyl polymers are obtained by reacting a partially saponified vinyl polymer with at least one carboxylic acid such as maleic acid, phthalic acid, succinic acid, butane tetracarboxylic acid and/or acid anhydrides or acid chlorides thereof.

    摘要翻译： 一种用于再生和改善半透膜的排斥性能的膜处理剂，其含有有效量的具有乙酰氧基和至少一个由式（I）和/或（II）表示的基团的改性乙烯基聚合物：（I）OR（COOH）n（II）其中R是选自具有1至9个碳原子的脂族，芳族和杂环基团的基团，n是1至3的整数。有价值的改性乙烯基 聚合物通过部分皂化的乙烯基聚合物与至少一种羧酸如马来酸，邻苯二甲酸，琥珀酸，丁烷四羧酸和/或酸酐或其酰氯反应而获得。

    METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE FILTRATION PLANT, AND REVERSE OSMOSIS MEMBRANE FILTRATION PLANT
    8.
    发明申请
    METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE FILTRATION PLANT, AND REVERSE OSMOSIS MEMBRANE FILTRATION PLANT 审中-公开
    操作反渗透膜过滤装置的方法和反渗透膜过滤装置

    公开(公告)号：US20090266762A1

    公开(公告)日：2009-10-29

    申请号：US12442631

    申请日：2007-09-20

    申请人： Yohito Ito ,  Seiko Kantani ,  Tadahiro Uemura ,  Tamotsu Kitade

    发明人： Yohito Ito ,  Seiko Kantani ,  Tadahiro Uemura ,  Tamotsu Kitade

    IPC分类号： B01D61/12 ,  C02F1/44

    CPC分类号： B01D61/025 ,  B01D61/12 ,  B01D65/08 ,  B01D65/10 ,  B01D2311/165 ,  B01D2321/40 ,  C02F1/441 ,  C02F1/50 ,  C02F2103/08 ,  C02F2209/36 ,  Y02A20/131

    摘要： A method for operating a reverse osmosis membrane filtration plant having a raw water intake unit, a pre-treatment unit, and a reverse osmosis membrane filtration unit having a reverse osmosis membrane module in this order, the method including: disposing a biofilm formation base material under conditions that reverse osmosis membrane supply water and/or reverse osmosis membrane non-permeated water in the reverse osmosis membrane filtration unit are/is flowed at a linear speed equal to a non-permeated water linear speed in the reverse osmosis membrane module of the reverse osmosis membrane filtration unit; evaluating a biofilm amount on the biofilm formation base material at a frequency of from once a day to once in six months; and controlling the method for operating a reverse osmosis membrane filtration plant based on results of the evaluation.

    摘要翻译： 一种反渗透膜过滤装置的操作方法，所述反渗透膜过滤装置具有原水进料单元，预处理单元和具有反渗透膜组件的反渗透膜过滤单元，该方法包括：将生物膜形成基材 在反渗透膜供水和/或反渗透膜反渗透膜过滤单元中的反渗透膜组件的反渗透膜组件中以等于非渗透水线速度的线速度流动的条件下 反渗透膜过滤单元; 在生物膜形成基础材料上以每天一次至六个月的一次的频率评估生物膜量; 并根据评估结果控制反渗透膜过滤装置的运行方法。

    Porous membrane and production process thereof
    10.
    发明授权
    Porous membrane and production process thereof 失效
    多孔膜及其生产工艺

    公开(公告)号：US5112487A

    公开(公告)日：1992-05-12

    申请号：US476413

    申请日：1990-05-29

    申请人： Yoshio Himeshima ,  Hideaki Tanisugi ,  Tetsuo Watanabe ,  Tadahiro Uemura ,  Masaru Kurihara

    发明人： Yoshio Himeshima ,  Hideaki Tanisugi ,  Tetsuo Watanabe ,  Tadahiro Uemura ,  Masaru Kurihara

    IPC分类号： B01D71/66

    CPC分类号： B01D71/76 ,  B01D71/26 ,  B01D71/66 ,  B01D71/68

    摘要： The present invention relates to a porous membrane which has excellent durability and is useful for ultrafiltration. The porous membrane of the present invention has heterogeneous structure, which consists essentially of a phenylenesulfide-based copolymer of the formula:(Ph--S--Ph--X--).sub.q --(wherein Ph represents phenylene group, X represents --SO.sub.2 -- or --CO--, and g represents an integer from 80-400 which membrane has a dense layer on one or both surfaces of the membrane, the dense layer controlling the separation performance of the membrane, and a porous layer next to the dense layer, which porous layer has a porosity higher than that of the dense layer.

    摘要翻译： 本发明涉及一种耐久性优异且可用于超滤的多孔膜。 本发明的多孔膜具有不均匀结构，其基本上由下式的苯基苯基系共聚物组成：（Ph-S-Ph-X-q） - （其中Ph表示亚苯基，X表示-SO 2 - 或 - CO-，g表示80-400的整数，该膜在膜的一个或两个表面上具有致密层，控制膜的分离性能的致密层和紧密致密层的多孔层，多孔 层的孔隙率高于致密层的孔隙率。