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    2.
    发明专利
    未知

    公开(公告)号：DE68916343T2

    公开(公告)日：1995-01-19

    申请号：DE68916343

    申请日：1989-01-10

    Applicant: TORAY INDUSTRIES

    Inventor： UEMURA TADAHIRO ,  FUJIMAKI HIDEO ,  IKEDA TOSHIHIRO

    IPC: B01D71/82 ,  B01D69/12 ,  B01D71/56 ,  B01D71/00

    Abstract: A process for producing a composite semipermeable membrane, which comprises coating a microporous support membrane with a polyamide formed by the interfacial polycondensation between a polyfunctional aromatic amine and a polyfunctional acyl halide. The polyfunctional aromatic amine component contains, as the comonomer component, 1 to 20 wt %, based on said aromatic amine, of at least one member selected from among alkyldiamine, 1,3,5-trihydroxybenzene and 1,3-dihydroxybenzene, and hence the resulting composite semipermeable membrane has markedly improved oxidation resistance while maintaining the excellent highly selective separative function and high permeability of a crosslinked polyamide type composite semipermeable membrane. This membrane can be suitably used for desalting of brine or seawater.

    Method for purification treatment of process water
    5.
    发明专利
    Method for purification treatment of process water 未知

    公开(公告)号：AU2009230315B2

    公开(公告)日：2013-04-18

    申请号：AU2009230315

    申请日：2009-03-13

    Applicant: CHIYODA CORP ,  TORAY INDUSTRIES

    Inventor： KOSHIZUKA HIROMI ,  KAWAMURA KAZUSHIGE ,  TANIGUCHI MASAHIDE ,  TAKABATAKE HIROO ,  OGI SATOSHI ,  SHINOHARA MASAYO ,  UEMURA TADAHIRO

    IPC: C02F9/00 ,  B01D61/02 ,  B01D61/14 ,  B01D61/58 ,  B01D69/02 ,  C02F1/04 ,  C02F1/28 ,  C02F1/44 ,  C02F3/12

    Abstract: Disclosed is a method for purifying a process water that can reduce an equipment cost and a running cost in purifying water as a by-product in the production of liquefied hydrocarbons by an FT process to produce water utilizable for various applications. Water as a by-product separated from a reaction product obtained in the production of hydrocarbons using a synthesis gas is subjected to distillation treatment (1) to obtain a primary treated water. The primary treated water is then subjected to cross flow-type semi-permeable membrane separation treatment (2) to obtain a purified water. The purified water may be discharged into rivers, seas or the like. Preferably, however, the purified water is used, for example, as industrial water, irrigation water, and potable water. Concentrated water produced by the semi-permeable membrane separation treatment (2) is biologically treated and is further subjected to solid-liquid separation to purify the concentrated water. The biologically treated water is returned, for example, to the semi-permeable membrane separation treatment (2) to again perform the treatment.

    Method for operating reverse osmosis membrane filtration plant, and reverse osmosis membrane filtration plant
    6.
    发明专利
    Method for operating reverse osmosis membrane filtration plant, and reverse osmosis membrane filtration plant 未知

    公开(公告)号：AU2007301269B2

    公开(公告)日：2011-05-26

    申请号：AU2007301269

    申请日：2007-09-20

    Applicant: TORAY INDUSTRIES

    Inventor： KANTANI SEIKO ,  ITO YOHITO ,  KITADE TAMOTSU ,  UEMURA TADAHIRO

    IPC: B01D61/12 ,  B01D65/02 ,  C02F1/44 ,  C02F1/50

    Abstract: An object of the present invention is to provide a method for operating a reverse osmosis membrane filtration plant which enables operations including addition of bactericide, chemical cleaning, pre-treatment, and the like which are carried out for the purpose of preventing biofouling of a reverse osmosis membrane module of a reverse osmosis membrane filtration unit highly reliably, highly sensitively, rationally, rapidly and conveniently in a reverse osmosis membrane filtration plant, and the reverse osmosis membrane filtration plant. For this objection, the present invention provides 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. Particularly, as the biofilm formation base material, a reverse osmosis membrane used in the reverse osmosis membrane filtration plant is used.

    9.
    发明专利
    未知

    公开(公告)号：DE68916023D1

    公开(公告)日：1994-07-14

    申请号：DE68916023

    申请日：1989-09-29

    Applicant: TORAY INDUSTRIES

    Inventor： HIMESHIMA YOSHIO ,  TANISUGI HIDEAKI ,  WATANABE TETSUO ,  UEMURA TADAHIRO ,  KURIHARA MASARU

    IPC: B01D71/66 ,  B01D71/00 ,  B01D69/00 ,  D01F6/76 ,  C08J9/28

    Abstract: A new porous membrane is composed of a phenylene -sulphide copolymer represented by general formula (-Ph-S-) m(Ph-X-)n (I), where pH is a phenylene group; X is -SO2 or -CO-; m , n = a natural number, m + n = 80-400. The porous membrane has a nonuniform structure in which one or more dense layers, formed on one or both sides of the membrane, provide the separation function. The porous layer has a larger void volume than the dense layer and is formed in contact with the dense layer. The phenylene sulphide copolymer can be represented by general formula -(-Ph-S-Ph-X-)q- (II) where q = an integer between 80 and 400. X is preferably -SO2-. Ph is preferably p-phenylene group. The dense layers has a separation ability which can reject 10 wt. % polyethylene glycol from polyethylene glycols having a molecular weight of 100,000. The thickness of the porous membrane is 10-100 microns. The void volume of the whole membrane is 20-80 %. The permeability of the membrane to pure water, under a pressure of 1kg/cm2 at 25 C, is 0.1 m3/m2. The porous membrane is laminated on a woven or nonwoven fabric made of polyester, polyamide, polyethylene, polypropylene or polyphenylene sulphide.

    OXYGEN SCAVENGER
    10.
    发明专利
    OXYGEN SCAVENGER 未知

    公开(公告)号：AU8034191A

    公开(公告)日：1992-01-16

    申请号：AU8034191

    申请日：1991-07-11

    Applicant: KIRIN BREWERY ,  TORAY INDUSTRIES

    Inventor： YAMADA SHINICHI ,  SAKUMA ISAMU ,  HIMESHIMA YOSHIO ,  AOKI TAKAO ,  UEMURA TADAHIRO ,  SHIRAKURA AKIRA

    IPC: A23L3/3436 ,  B01D53/14 ,  B01D69/00 ,  B65D81/26 ,  B01D71/06 ,  B01D71/66 ,  B01D71/68 ,  B01D69/12

    Abstract: An oxygen scavenger (1) comprises an oxygen absorbent composition (7) and an oxygen permeable film (9) covering the oxygen absorbent composition (7) and including an asymmetric porous membrane (3) whose outer surface portion in the thickness direction of the asymmetric porous membrane (3) is formed as a dense skin layer (4). Since the dense skin layer (4) is very thin, the oxygen permeability to the oxygen absorbent composition (7) through the oxygen permeable film (9 ) can be maintained sufficiently high. At the same time, since the dense skin layer (4) has a sufficiently high barrier property as well as a high oxygen permeability, then where a container is provided with the oxygen scavenger, contact of a substance stored in the container with the oxygen absorbent composition (7) can be prevented with certainty. The substances stored in the container provided wtih the oxygen scavenger (1) can be prevented from deterioration due to the oxygen present in the container by a high oxygen absorption ability of the scavenger (1), and maintained in a good or fresh condition for a long time.

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