ES2046992T3 - Membranas de osmosis inversa. - Google Patents

Membranas de osmosis inversa.

Info

Publication number
ES2046992T3
ES2046992T3 ES88100109T ES88100109T ES2046992T3 ES 2046992 T3 ES2046992 T3 ES 2046992T3 ES 88100109 T ES88100109 T ES 88100109T ES 88100109 T ES88100109 T ES 88100109T ES 2046992 T3 ES2046992 T3 ES 2046992T3
Authority
ES
Spain
Prior art keywords
membrane
reverse osmosis
groups
resulting
nitrous acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES88100109T
Other languages
English (en)
Inventor
John E Cadotte
Donald L Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Filmtec Corp
Dow Chemical Co
Original Assignee
Filmtec Corp
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Filmtec Corp, Dow Chemical Co filed Critical Filmtec Corp
Application granted granted Critical
Publication of ES2046992T3 publication Critical patent/ES2046992T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/30—Cross-linking

Abstract

SE DESCRIBE UNA MEMBRANA PARA OSMOSIS INVERSA MEJORADA Y UN PROCEDIMIENTO PARA FABRICARLA. LA MEMBRANA SE PREPARA POR TRATAMINETO DE UN POLIMERO, QUE TIENE GRUPOS AMINO PRIMARIO, CON ACIDO NITROSO O UN COMPUESTO DE DIAZONIO PARA QUE REACCIONEN LOS GRUPOS DIAZONIO RESULTANTES CON LOS OTROS GRUPOS PRESENTES. LA MEMBRANA RESULTANTE POSEE RESISTENCIA AL CLORO MEJORADA. CUANDO SE EMPLEA EL TRATAMIENTO CON ACIDO NITROSO, EL FLUJO DE AGUA DE UNA MEMBRANA DE POLIAMIDA SE AUMENTA FRECUENTEMENTE CON POCO O SIN EFECTO SOBRE EL RECHAZO DE LA SAL DE LA MEMBRANA.
ES88100109T 1987-01-15 1988-01-07 Membranas de osmosis inversa. Expired - Lifetime ES2046992T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US399687A 1987-01-15 1987-01-15
US07/083,134 US4812238A (en) 1987-01-15 1987-08-10 Membranes prepared via reaction of diazonium compounds or precursors

Publications (1)

Publication Number Publication Date
ES2046992T3 true ES2046992T3 (es) 1994-02-16

Family

ID=26672466

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88100109T Expired - Lifetime ES2046992T3 (es) 1987-01-15 1988-01-07 Membranas de osmosis inversa.

Country Status (6)

Country Link
US (1) US4812238A (es)
EP (1) EP0275027B1 (es)
AU (1) AU607960B2 (es)
BR (1) BR8800185A (es)
DE (1) DE3886057T2 (es)
ES (1) ES2046992T3 (es)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888116A (en) * 1987-01-15 1989-12-19 The Dow Chemical Company Method of improving membrane properties via reaction of diazonium compounds or precursors
US4872984A (en) * 1988-09-28 1989-10-10 Hydranautics Corporation Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same
IL89970A (en) * 1989-04-14 1994-10-21 Weizmann Kiryat Membrane Prod Composite membranes containing a coated layer of crosslinked polyaromatic polymers and/or sulfonated poly (haloalkylenes)
US5015380A (en) * 1989-04-20 1991-05-14 E. I. Du Pont De Nemours And Company Microporous support layer with interfacially polymerized copolyamide membrane thereon
US4981497A (en) * 1989-06-01 1991-01-01 E. I. Du Pont De Nemours And Company Amine-modified polyimide membranes
EP0432358A1 (en) * 1989-12-13 1991-06-19 Filmtec Corporation Treated composite polyamide membranes to separate concentrated solute
US4960517A (en) * 1989-12-13 1990-10-02 Filmtec Corporation Treatment of composite polyamide membranes via substitution with amine reactive reagents
US4964998A (en) * 1989-12-13 1990-10-23 Filmtec Corporation Use of treated composite polyamide membranes to separate concentrated solute
US5582725A (en) * 1995-05-19 1996-12-10 Bend Research, Inc. Chlorine-resistant composite membranes with high organic rejection
GB2332157A (en) * 1995-08-28 1999-06-16 Millipore Investment Holdings Limited Fabric reinforced adsorptive membrane
US5755964A (en) * 1996-02-02 1998-05-26 The Dow Chemical Company Method of treating polyamide membranes to increase flux
US5658460A (en) * 1996-05-07 1997-08-19 The Dow Chemical Company Use of inorganic ammonium cation salts to maintain the flux and salt rejection characteristics of reverse osmosis and nanofiltration membranes during drying
WO2001023077A1 (fr) * 1999-09-28 2001-04-05 Toray Industries, Inc. Procede de production de membrane composite semipermeable
AU2002304623A1 (en) * 2001-05-11 2002-11-25 Poly-An Gesellschaft Zur Herstellung Von Polymeren Fur Spezielle Anwendungen Und Analytik Mbh Method for reducing an adsorption tendency of molecules or biological cells on a material surface
US8028842B2 (en) 2006-01-18 2011-10-04 Virginia Tech Intellectual Properties, Inc. Chlorine resistant desalination membranes based on directly sulfonated poly(arylene ether sulfone) copolymers
US7806275B2 (en) * 2007-05-09 2010-10-05 The United States Of America As Represented By The Secretary Of The Interior, The Bureau Of Reclamation Chlorine resistant polyamides and membranes made from the same
US8216473B2 (en) 2008-06-13 2012-07-10 Solution Dynamics, Llc Apparatus and methods for solution processing using reverse osmosis
TWI398353B (zh) * 2009-03-02 2013-06-11 Ind Tech Res Inst 奈米纖維材料與脫鹽過濾材料
AU2010336627A1 (en) * 2009-12-22 2012-05-31 Toray Industries, Inc. Semipermeable membrane and manufacturing method therefor
EP2517782A4 (en) * 2009-12-24 2017-01-04 Toray Industries, Inc. Composite semipermeable membrane and method for producing same
JP5741431B2 (ja) * 2010-02-23 2015-07-01 東レ株式会社 複合半透膜およびその製造方法
AU2011245067B2 (en) * 2010-04-28 2015-10-29 The University Of Queensland Control of bacterial activity, such as in sewers and wastewater treatment systems
JP6136266B2 (ja) * 2010-12-28 2017-05-31 東レ株式会社 複合半透膜
WO2013006890A1 (en) * 2011-07-12 2013-01-17 The University Of Queensland Treatment of membranes used in water treatment
US9630149B2 (en) * 2012-07-19 2017-04-25 Dow Global Technologies Llc Composite polyamide membrane with improved structure
US9056284B2 (en) 2012-08-10 2015-06-16 The United States Of America, As Represented By The Secretary Of The Interior Chlorine resistant amides, polyamides, and membranes made from the same
JP6272905B2 (ja) * 2013-01-14 2018-01-31 ダウ グローバル テクノロジーズ エルエルシー トリ−ヒドロカルビルホスフェートを含む複合ポリアミド膜
KR102172598B1 (ko) * 2013-02-28 2020-11-02 도레이 카부시키가이샤 복합 반투막
AU2014376253B2 (en) * 2014-01-09 2018-07-26 Dow Global Technologies Llc Composite polyamide membrane having preferred azo content
CN108367244B (zh) 2015-07-29 2022-05-03 格雷迪安特公司 渗透脱盐方法和相关系统
CN109789377B (zh) * 2016-08-08 2022-03-08 港大科桥有限公司 具有高生产量和水消毒性能的手提式重力驱动的水过滤器的制备
JP7010216B2 (ja) * 2017-04-28 2022-01-26 東レ株式会社 複合半透膜及びその製造方法
SG11202101293TA (en) 2018-08-22 2021-03-30 Gradiant Corp Liquid solution concentration system comprising isolated subsystem and related methods
WO2022108891A1 (en) 2020-11-17 2022-05-27 Gradiant Corporaton Osmotic methods and systems involving energy recovery

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551331A (en) * 1969-09-22 1970-12-29 Du Pont Reverse osmosis separations using a treated polyamide membrane
US3721623A (en) * 1971-07-23 1973-03-20 Westinghouse Electric Corp Method of improving the salt rejection of semipermeable reverse osmosis membranes
BE788751A (fr) * 1971-09-13 1973-01-02 Teijin Ltd Membranes polymeres permselectives
US3806564A (en) * 1972-01-26 1974-04-23 Interior Method of chemically modifying asymmetric membranes
US3850797A (en) * 1973-06-12 1974-11-26 Culligan Int Co Method of sterilizing reverse osmosis water treatment units
US3966580A (en) * 1974-09-16 1976-06-29 The University Of Utah Novel protein-immobilizing hydrophobic polymeric membrane, process for producing same and apparatus employing same
US4005012A (en) * 1975-09-22 1977-01-25 The United States Of America As Represented By The Secretary Of The Interior Semipermeable membranes and the method for the preparation thereof
US4087388A (en) * 1976-10-21 1978-05-02 E. I. Du Pont De Nemours And Company Process of preparing a permselective membrane
US4080296A (en) * 1977-03-28 1978-03-21 The Dow Chemical Company Hollow fiber permeator
FI70421C (fi) * 1978-05-15 1986-09-19 Pall Corp Foerfarande foer framstaellning av skinnfria hydrofila i alkohol oloesliga polyamidmembraner polyamidhartsmembranhinna filterelement och gjuthartsloesning
US4340480A (en) * 1978-05-15 1982-07-20 Pall Corporation Process for preparing liquophilic polyamide membrane filter media and product
US4259183A (en) * 1978-11-07 1981-03-31 Midwest Research Institute Reverse osmosis membrane
US4227344A (en) * 1979-02-15 1980-10-14 David Poppke Automatic parking lot gate with four-way flex connector
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane
DE3070021D1 (en) * 1979-09-19 1985-03-07 Aligena Ag Porous semipermeable membrane based on polyacrylonitrile modified by amidoxime groups, process for its preparation and their use
US4673504A (en) * 1980-10-27 1987-06-16 Cuno Inc. Charge modified microporous membrane
GB2101137B (en) * 1981-04-14 1984-09-26 Ube Industries Producing porous aromatic imide polymer membranes
US4415455A (en) * 1982-11-09 1983-11-15 Rohm And Haas Company Reverse osmosis membranes based on hydroxyalkyl methacrylate and methacrylic acid copolymers
WO1984003054A1 (en) * 1983-02-02 1984-08-16 Memtec Ltd Cross linked porous membranes
US4606943A (en) * 1983-03-18 1986-08-19 Culligan International Company Method for preparation of semipermeable composite membrane
DE3342823A1 (de) * 1983-11-26 1985-06-05 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Verfahren zum herstellen von filterelementen auf der basis von aromatischem polyamid
US4520044A (en) * 1984-07-30 1985-05-28 E. I. Du Pont De Nemours And Company Production of composite membranes
US4601827A (en) * 1984-09-27 1986-07-22 E. I. Du Pont De Nemours And Company Multistage annealing of aramide reverse osmosis membranes
EP0178350B1 (en) * 1984-10-15 1989-05-10 Shell Internationale Researchmaatschappij B.V. Process for producing dense membranes
US4704324A (en) * 1985-04-03 1987-11-03 The Dow Chemical Company Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
US4661254A (en) * 1985-05-23 1987-04-28 Uop Inc. Chlorine-resistant semipermeable membranes
US4719062A (en) * 1986-04-23 1988-01-12 E. I. Du Pont De Nemours And Company Extractant-surfactant post-treatments of permselective composite membranes
US4626468A (en) * 1986-04-23 1986-12-02 E. I. Du Pont De Nemours And Company Microporous support layer with interfacially polymerized copolyamide thereon

Also Published As

Publication number Publication date
EP0275027A2 (en) 1988-07-20
EP0275027B1 (en) 1993-12-08
DE3886057D1 (de) 1994-01-20
DE3886057T2 (de) 1994-04-14
US4812238A (en) 1989-03-14
AU1023388A (en) 1988-07-21
BR8800185A (pt) 1988-08-30
EP0275027A3 (en) 1989-03-15
AU607960B2 (en) 1991-03-21

Similar Documents

Publication Publication Date Title
ES2046992T3 (es) Membranas de osmosis inversa.
MX9102371A (es) Membranas semipermeables a base de ciertos polimeros de polisulfona sustituida, sulfonada.
DE3688689T2 (de) Membranen.
KR910700083A (ko) 삼투압 구동식 주사기
AR241451A1 (es) Un metodo de destilacion osmotica para la concentracion de un primer fluido de presion osmotica relativamente baja.
ATE107538T1 (de) Verfahren zur herstellung von halbdurchlässigen komposit- membranen.
ES2044723T3 (es) Membranas semipermeables secas de caudal elevado.
FR2189455A1 (en) 1,3-oxazatetralin resins - by reacting a phenol, primary amine and formaldehyde
DE60016889D1 (de) Zusammengesetzte Umkehrosmosemembranen und Verfahren zu ihrer Herstellung
YU46439B (sh) Tesnilni element za galvanski element
ES2057339T3 (es) Medicamento para la aplicacion por via subcutanea o intramuscular que contiene polipeptidos.
ES2050717T3 (es) Membrana semipermeable organomineral y su procedimiento de fabricacion.
DK22190A (da) Asymmetrisk membran og fremgangsmaade til dens fremstilling samt membranens anvendelse
FR2393594A1 (fr) Preparation d'une membrane composite semi-permeable
ATE104568T1 (de) Durch polyaldehyde aktivierte membranen, ihre herstellung und ihre verwendung.
ES2063405T3 (es) Fabricacion de acido cromico utilizando membranas bipolares.
CL2021002990A1 (es) Membranas de óxido de grafeno durables
EP0609446A4 (en) MEMBRANE MADE FROM POLYION COMPLEX.
AR241534A1 (es) Compuestos de 7-(2-(5-amino-1,2,4-tiazol-3-il)-2-alcoxiimino-acetamido)-3-metil-imidazo piridinio o imidazo-pirimidinio-3-cefem-4-carboxilato y sus sales.
ES547303A0 (es) Procedimiento para la obtencion de una membrana compuesta semipermeable sobre un substrato microporoso, basada en un polimero reticulado.
ES2138047T3 (es) Procedimiento para la preparacion de policarbonatos.
BR9808362A (pt) Recepiente para a preparação de soluções de soluto reidratado, de substitutos de sangue ou sangue reidratados, de soluções nutricionais, de soluções para propósito médico ou de água pura, uso de um recipiente, processo para a preparação de uma solução de soluto reidratado, de sangue ou substituto de sangue reidratado, de uma solução nutricional, de uma solução para propósito médico, de água pura, e, solução de soluto reidratado, sangue ou substituto de sangue reidratado, solução nutricional, solução para propósito médico, ou água pura.
ATE104149T1 (de) Dialysier- und spuelloesung zur intraperitonealen verarbreichung.
KR880003653A (ko) 아미노산 수용액의 농축방법
ES2053185T3 (es) Procedimiento para la preparacion de membranas semipermeables de poliester resistentes al cloro.

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 275027

Country of ref document: ES