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公开(公告)号：DE3068112D1
公开(公告)日：1984-07-12
申请号：DE3068112
申请日：1980-08-21
Applicant: TORAY INDUSTRIES
Inventor： KURIHARA MASARU , HARUMIYA NORIHO , UEMURA TADAHIRO
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公开(公告)号：ES2575603T3
公开(公告)日：2016-06-29
申请号：ES07807653
申请日：2007-09-20
Applicant: TORAY INDUSTRIES
Inventor： ITO YOHITO , KANTANI SEIKO , UEMURA TADAHIRO , KITADE TAMOTSU
Abstract: Un método de funcionamiento de una planta de filtración con membrana de ósmosis inversa que tiene una unidad de entrada de agua bruta, una unidad de pre-tratamiento y una unidad de filtración con membrana de ósmosis inversa que tiene un módulo de membrana de ósmosis inversa en este orden, comprendiendo dicho método: disponer una membrana de ósmosis inversa usada como material de base de formación de biopelícula en un recipiente de flujo, en donde la membrana de ósmosis inversa es una hoja rectangular y está enrollada de tal manera que una superficie de capa con función de separación sirve de lado interno y la membrana de ósmosis inversa enrollada es empujada en el recipiente de flujo a lo largo de una pared interna del recipiente de flujo en el que el lado interno es la parte sobre la que circula el agua de evaluación dentro del recipiente de flujo, de manera que el agua de suministro del módulo de membrana de ósmosis inversa muestreada de la ramificación de tubería aguas arriba del primer módulo de membrana de ósmosis inversa en la unidad de filtración con membrana de ósmosis inversa y/o el agua no permeada por el módulo de membrana de ósmosis inversa muestreada de la ramificación de tubería aguas abajo de los módulos de membrana de ósmosis inversa a través de los cuales pasa el agua no permeada por el módulo de membrana de ósmosis inversa, circula/n sobre una superficie de una capa con función de separación de la hoja de membrana de ósmosis inversa usada como material de base de formación de biopelícula alojada en el recipiente de flujo, y de manera que el agua de suministro del módulo de membrana de ósmosis inversa y/o el agua no permeada por el módulo de membrana de ósmosis inversa no es/son filtrada(s) por la hoja de membrana de ósmosis inversa usada como material de base de formación de biopelícula alojada en el recipiente de flujo, pero en condiciones en que el agua de suministro del módulo de membrana de ósmosis inversa y/o el agua no permeada por el módulo de membrana de ósmosis inversa circula(n) a una velocidad lineal igual a una velocidad lineal de agua no permeada en el módulo de membrana de ósmosis inversa de la unidad de filtración de membrana de ósmosis inversa e igual a una velocidad lineal promedio sobre la superficie del módulo de membrana de ósmosis inversa sobre la que circula el agua no permeada; evaluar una cantidad de biopelícula sobre la hoja de membrana de ósmosis inversa usada como material de base de formación de biopelícula alojada en el recipiente de flujo a una frecuencia de una vez al día a una vez cada seis meses; y controlar el método de funcionamiento de una planta de filtración con membrana de ósmosis inversa basándose en los resultados de la evaluación, en el que la membrana de ósmosis inversa usada como material de base de formación de biopelícula está hecha del mismo material que una membrana de ósmosis inversa que se usa en la planta de filtración con membrana de ósmosis inversa.
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公开(公告)号：DE69132403T2
公开(公告)日：2001-03-29
申请号：DE69132403
申请日：1991-01-31
Applicant: TORAY INDUSTRIES
Inventor： SHIRO KUNIYASU , HIMESHIMA YOSHIO , YAMADA SHINICHI , WATANABE TETSUO , UEMURA TADAHIRO , KURIHARA MASARU
Abstract: A composite membrane excellent in the resistance to organic solvent, heat and organic vapor and usable for pervaporation, gas separation and reverse osmosis, which is composed of a porous membrane mainly comprising a polymer having repeating units of formula (I) and an active layer formed thereon: -( Ph - S - Ph SO2 -)n (I) wherein Ph represents phenyl and n is a natural number.
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公开(公告)号：DE69030314D1
公开(公告)日：1997-04-30
申请号：DE69030314
申请日：1990-01-26
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TATSUO , FUJIMAKI HIDEO , UEMURA TADAHIRO
Abstract: This invention relates to a composite semipermeable membrane of low-pressure high desalination type having an excellent chlorine resistance and a method for the production thereof. This membrane is composed of a microporous supporting membrane and an ultrathin membrane covering said supporting membrane, wherein the ultrathin membrane comprises a polyamide prepared by the polycondensation of a dicarboxylic acid halide with piperazine and ethylenediamine as the main component and a molar fraction of ethylenediamine polyamide constituents to piperazine polyamide constituents is regulated to be in the range of 0.01 to 0.25, so that the membrane has a high desalination rate, a high fresh water generation rate and a sufficient chlorine durability. Thus it can be used in a small ultrapure water generator and a household water purifier and as a reverse osmosis membrane for treating waste water or the like.
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公开(公告)号：DE69122934D1
公开(公告)日：1996-12-05
申请号：DE69122934
申请日：1991-08-08
Applicant: TORAY INDUSTRIES
Inventor： IKEDA TOSHIHIRO , NAKAGAWA YUKIO , UEMURA TADAHIRO , KURIHARA MASARU
Abstract: A composite semipermeable membrane which has a high electrolytes rejection even when the concentration of the electrolytes in feed water is very low and even if the pH of feed water is not less than 8 is disclosed. The composite semipermeable membrane of the present invention comprises a microporous substrate and a cross-linked polyamide-based ultra-thin membrane laminated on the microporous substrate, the ultra-thin membrane having a covalently bonded quaternary nitrogen atom.
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Patent Agency Ranking
公开(公告)号：DE69211731D1
公开(公告)日：1996-08-01
申请号：DE69211731
申请日：1992-03-11
Applicant: TORAY INDUSTRIES
Inventor： TAKAHASHI SERIYA , FUJII YOSHISHIGE , UEMURA TADAHIRO
Abstract: A process of producing a composite semipermeable membrane with high performance, which does not involve a highly ignitable solvent or a chlorofluorocarbon solvent which destructs the environment is disclosed. In the process of the present invention, a polyfunctional amine solution and a polyfunctional acid halide solution in a hydrocarbon-based solvent with a flash point of not lower than 10 C are applied 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 a gas is blown 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 - 80 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.
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公开(公告)号：AU643303B2
公开(公告)日：1993-11-11
申请号：AU8034191
申请日：1991-07-11
Applicant: TORAY INDUSTRIES , KIRIN BREWERY
Inventor： YAMADA SHINICHI , SAKUMA ISAMU , HIMESHIMA YOSHIO , AOKI TAKAO , UEMURA TADAHIRO , SHIRAKURA AKIRA
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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18.发明专利
公开(公告)号：DE3071096D1
公开(公告)日：1985-10-24
申请号：DE3071096
申请日：1980-07-21
Applicant: TORAY INDUSTRIES
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公开(公告)号：DE2950623A1
公开(公告)日：1981-06-19
申请号：DE2950623
申请日：1979-12-15
Applicant: TORAY INDUSTRIES
Inventor： KURIHARA MASARU , UEMURA TADAHIRO , OKADA KIYOSHI
Abstract: Semipermeable membrane comprises crosslinked polymer consisting mainly of modified polyether amine obtd. by reaction of polyether having repeat unit of formula (I): (where X is Cl, Br or I; i and j are mole fraction, and i + j = 1, 0 =i =1, 0 = j =0.8, and polyamine having more than two prim. or sec. amino gps. (prim. amino is one or less). The membrane has good resistance to hydrolysis, chemicals, esp. chlorine, and mechanical property. The membrane is useful for the desalination of seawater or brine. In an example, a semipermeable membrane was obtd. by casting modified polyether amine of 4-(aminomethyl)piperidine on polysulphone membrane.
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公开(公告)号：AU2007301269A1
公开(公告)日：2008-04-03
申请号：AU2007301269
申请日：2007-09-20
Applicant: TORAY INDUSTRIES
Inventor： KANTANI SEIKO , ITO YOHITO , KITADE TAMOTSU , UEMURA TADAHIRO
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.
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