DE3064461D1 - Process for the production of a reverse osmosis membrane, reverse osmosis membrane thus produced, and use of such membrane in a desalination process - Google Patents

Process for the production of a reverse osmosis membrane, reverse osmosis membrane thus produced, and use of such membrane in a desalination process

Info

Publication number
DE3064461D1
DE3064461D1 DE8080300096T DE3064461T DE3064461D1 DE 3064461 D1 DE3064461 D1 DE 3064461D1 DE 8080300096 T DE8080300096 T DE 8080300096T DE 3064461 T DE3064461 T DE 3064461T DE 3064461 D1 DE3064461 D1 DE 3064461D1
Authority
DE
Germany
Prior art keywords
reverse osmosis
membrane
osmosis membrane
produced
production
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
Application number
DE8080300096T
Other languages
German (de)
English (en)
Inventor
John E Cadotte
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.)
Midwest Research Institute
Original Assignee
Midwest Research Institute
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 Midwest Research Institute filed Critical Midwest Research Institute
Application granted granted Critical
Publication of DE3064461D1 publication Critical patent/DE3064461D1/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/28—Preparatory processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/0622—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
    • C08G73/0633—Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with only two nitrogen atoms in the ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
DE8080300096T 1979-01-10 1980-01-10 Process for the production of a reverse osmosis membrane, reverse osmosis membrane thus produced, and use of such membrane in a desalination process Expired DE3064461D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/002,396 US4259183A (en) 1978-11-07 1979-01-10 Reverse osmosis membrane

Publications (1)

Publication Number Publication Date
DE3064461D1 true DE3064461D1 (en) 1983-09-08

Family

ID=21700568

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8080300096T Expired DE3064461D1 (en) 1979-01-10 1980-01-10 Process for the production of a reverse osmosis membrane, reverse osmosis membrane thus produced, and use of such membrane in a desalination process

Country Status (6)

Country Link
US (1) US4259183A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (2) EP0014054B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0138522B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1144433A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3064461D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1980001464A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (122)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4337154A (en) * 1979-04-04 1982-06-29 Nippon Shokubai Kagaku Kogyo Co., Ltd. Crosslinked composite semipermeable membrane
JPS55139802A (en) * 1979-04-19 1980-11-01 Teijin Ltd Compound film of selective permeability
EP0025973B1 (de) * 1979-09-19 1985-01-23 Aligena Ag Poröse, semipermeable, durch Amidoximgruppen modifizierte Membran auf der Basis von Polyacrylnitrilen, Verfahren zu ihrer Herstellung und ihre Verwendung
DE3170223D1 (en) * 1981-01-13 1985-06-05 Teijin Ltd Ion-permeable composite membrane and its use in selective separation
US4473475A (en) * 1981-05-29 1984-09-25 Amf Inc. Charge modified microporous membrane, process for charge modifying said membrane, and process for filtration of fluids
JPS5824303A (ja) * 1981-08-03 1983-02-14 Teijin Ltd 耐酸化性複合半透膜
US4606943A (en) * 1983-03-18 1986-08-19 Culligan International Company Method for preparation of semipermeable composite membrane
EP0160050B1 (en) * 1983-10-18 1990-03-21 Memtec Limited Substituted aliphatic polyamide porous membranes
US4761234A (en) * 1985-08-05 1988-08-02 Toray Industries, Inc. Interfacially synthesized reverse osmosis membrane
US4758343A (en) * 1985-09-20 1988-07-19 Toray Industries, Inc. Interfacially synthesized reverse osmosis membrane
GB2189168B (en) 1986-04-21 1989-11-29 Aligena Ag Composite membranes useful in the separation of low molecular weight organic compounds from aqueous solutions containing inorganic salts
US4812270A (en) * 1986-04-28 1989-03-14 Filmtec Corporation Novel water softening membranes
US4824574A (en) * 1986-04-28 1989-04-25 The Dow Chemical Company Novel water softening process using membranes
US4765897A (en) * 1986-04-28 1988-08-23 The Dow Chemical Company Polyamide membranes useful for water softening
DE3623796A1 (de) * 1986-07-15 1988-01-28 Dow Chemical Rheinwerk Gmbh Vorrichtung und adsorptionsverfahren zur selektiven entfernung von ionen aus fluessigkeiten
US4812238A (en) * 1987-01-15 1989-03-14 The Dow Chemical Company Membranes prepared via reaction of diazonium compounds or precursors
US4888116A (en) * 1987-01-15 1989-12-19 The Dow Chemical Company Method of improving membrane properties via reaction of diazonium compounds or precursors
DE3786177T2 (de) * 1987-06-25 1993-12-16 Atlas Copco Airpower Wilrijk N Methode zur verbesserung der trennungseigenschaften von semipermeablen membranen und die nach dieser methode verbesserten membranen.
WO1988010141A1 (en) * 1987-06-25 1988-12-29 Atlas Copco Aktiebolag A process for production of a semi-permeable membrane, a membranemanufactured by said process and the use of such a membrane for gas or liquid separation
US4853122A (en) * 1987-09-15 1989-08-01 Bend Research, Inc. P-xylylenediamide/diimide composite RO membranes
US4859384A (en) * 1987-11-18 1989-08-22 Filmtec Corp. Novel polyamide reverse osmosis membranes
US4769148A (en) * 1987-11-18 1988-09-06 The Dow Chemical Company Novel polyamide reverse osmosis membranes
US5091216A (en) * 1988-04-13 1992-02-25 E. I. Du Pont De Nemours And Company Reactive post treatment for gas separation membranes
US4802984A (en) * 1988-05-04 1989-02-07 Ionics, Incorporated Composite semipermeable membrane
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
US4876009A (en) * 1988-10-21 1989-10-24 Bend Research, Inc. Tetrakis-amido high flux membranes
US5015382A (en) * 1989-04-20 1991-05-14 E. I. Du Pont De Nemours And Company Microporous support layer with interfacially polymerized copolyamide membrane thereon
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
GB8918888D0 (en) * 1989-08-18 1989-09-27 Lrc Products Production of thin walled hollow polymeric articles and polymeric coatings on substrates
US4983291A (en) * 1989-12-14 1991-01-08 Allied-Signal Inc. Dry high flux semipermeable membranes
US5173335A (en) * 1990-07-31 1992-12-22 E. I. Du Pont De Nemours And Company Method of producing multilayer reverse osmosis membrane of polyamide-urea
US5118424A (en) * 1990-11-30 1992-06-02 Ionics Incorporated Thin film composite membranes from vinyl and related nomomers
US5258203A (en) * 1991-02-04 1993-11-02 E. I. Du Pont De Nemours And Company Process for the manufacture of thin film composite membranes
US5271843A (en) * 1991-09-09 1993-12-21 Allied-Signal Inc. Chlorine-tolerant, thin-film composite membrane
US5234598A (en) * 1992-05-13 1993-08-10 Allied-Signal Inc. Thin-film composite membrane
US5262054A (en) * 1992-12-30 1993-11-16 E. I. Du Pont De Nemours And Company Process for opening reverse osmosis membranes
US5368889A (en) * 1993-04-16 1994-11-29 The Dow Chemical Company Method of making thin film composite membranes
US5616249A (en) * 1993-05-20 1997-04-01 Ionics, Incorporated Nanofiltration apparatus and processes
BE1007425A3 (nl) * 1993-08-30 1995-06-13 Holland Sweetener Co Werkwijze en inrichting voor de terugwinning van grondstoffen in het aspartaambereidingsproces.
US5783079A (en) * 1994-08-29 1998-07-21 Toyo Boseki Kabushiki Kaisha Composite hollow fiber membrane and process for its production
US5693227A (en) * 1994-11-17 1997-12-02 Ionics, Incorporated Catalyst mediated method of interfacial polymerization on a microporous support, and polymers, fibers, films and membranes made by such method
JP3489922B2 (ja) * 1994-12-22 2004-01-26 日東電工株式会社 高透過性複合逆浸透膜の製造方法
US5582725A (en) * 1995-05-19 1996-12-10 Bend Research, Inc. Chlorine-resistant composite membranes with high organic rejection
HUP0001634A2 (hu) 1996-10-10 2000-09-28 Cytel Corporation Szénhidrátok tisztítása ultraszűréssel, fordított ozmózissal és nanoszűréssel
IL119490A (en) * 1996-10-25 2000-06-01 Weizmann Kiryat Membrane Prod Process for producing a tubular membrane assembly
US6517343B2 (en) 1997-09-26 2003-02-11 Arizona Chemical Company Coated candles and coating compositions
US5922203A (en) * 1997-10-07 1999-07-13 Hydranautics Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
US6145588A (en) * 1998-08-03 2000-11-14 Xetex, Inc. Air-to-air heat and moisture exchanger incorporating a composite material for separating moisture from air technical field
US6268466B1 (en) 1999-01-04 2001-07-31 Arizona Chemical Company Tertiary amide terminated polyamides and uses thereof
US6503077B2 (en) 1999-01-04 2003-01-07 Arizona Chemical Company Gelled articles containing tertiary amide-terminated polyamide
US6592857B2 (en) 1999-01-04 2003-07-15 Arizona Chemical Company Tertiary amide terminated polyamides in cosmetics
US20030136727A1 (en) * 1999-05-27 2003-07-24 Hideki Yamada Composite semipermeable membrane
US6464873B1 (en) * 1999-06-15 2002-10-15 Hydranautics Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same
KR100474170B1 (ko) * 2000-04-14 2005-03-07 주식회사 새 한 폴리아미드 나노복합막 및 그 제조방법
BR0003677A (pt) * 2000-08-07 2002-03-26 Osmonics Inc Método de recuperação secundária de petróleo
US6955222B2 (en) * 2000-08-07 2005-10-18 Ge Osmonics, Inc. Method for secondary oil recovery
US7001518B1 (en) 2000-11-28 2006-02-21 Hydranautics Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof
KR100477591B1 (ko) * 2001-01-17 2005-03-18 주식회사 새 한 폴리아마이드 역삼투 복합막 및 그 제조방법
AU784308B2 (en) * 2001-02-06 2006-03-09 Saehan Industries Incorporation Composite polyamide reverse osmosis membrane and method for producing the same
KR100477592B1 (ko) * 2001-02-07 2005-03-18 주식회사 새 한 폴리아마이드 역삼투 복합막 및 그 제조방법
EP1230971B1 (en) * 2001-02-12 2005-05-11 Saehan Industries, Inc. Composite polyamide reverse osmosis membrane and method for producing the same
US6552160B2 (en) 2001-05-14 2003-04-22 Arizona Chemical Company Ester-terminated poly(ester-amides) useful for formulating transparent gels in low polarity fluids
DE10129458A1 (de) * 2001-06-19 2003-01-02 Celanese Ventures Gmbh Verbesserte Polymerfolien auf Basis von Polyazolen
US7156997B2 (en) * 2001-10-05 2007-01-02 Dow Global Technologies Inc. Package assembly for piperazine-based membranes
US7279097B2 (en) 2003-06-18 2007-10-09 Toray Industries, Inc. Composite semipermeable membrane, and production process thereof
US20060207930A1 (en) * 2005-03-15 2006-09-21 Yeager Gary W Interfacial composite structure and method of making them
US20080135482A1 (en) * 2006-11-27 2008-06-12 Kripal Singh Polyamide nanofiltration membrane useful for the removal of phospholipids
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
MX2009013821A (es) 2007-06-28 2010-02-03 Calera Corp Metodos y sistemas de desalinizacion que incluyen la precipitacion de compuestos de carbonato.
US20090242479A1 (en) * 2008-03-27 2009-10-01 General Electric Company Aromatic halosulfonyl isocyanate compositions
US20090242831A1 (en) * 2008-03-27 2009-10-01 General Electric Company Aromatic halosulfonyl isocyanate compositions
US8177978B2 (en) * 2008-04-15 2012-05-15 Nanoh20, Inc. Reverse osmosis membranes
US8147735B2 (en) * 2008-07-09 2012-04-03 Eltron Research & Development, Inc. Semipermeable polymers and method for producing same
WO2011008549A2 (en) * 2009-06-29 2011-01-20 NanoH2O Inc. Improved hybrid tfc ro membranes with nitrogen additives
US20110049055A1 (en) * 2009-08-31 2011-03-03 General Electric Company Reverse osmosis composite membranes for boron removal
GB201012083D0 (en) 2010-07-19 2010-09-01 Imp Innovations Ltd Thin film composite membranes for separation
DE102010034700A1 (de) 2010-08-18 2012-02-23 Merck Patent Gmbh Membran mit selektiv permeabler Polymerschicht
WO2012064939A2 (en) 2010-11-10 2012-05-18 Nanoh2O, Inc. Improved hybrid tfc ro membranes with non-metallic additives
BR112013012824A2 (pt) * 2010-12-13 2016-09-06 Syngenta Participations Ag proteínas cry1i e genes para o controle de insetos
US20120152839A1 (en) * 2010-12-20 2012-06-21 David Allen Olson Modified sulfonamide polymeric matrices
ES2524318T3 (es) 2011-01-24 2014-12-05 Dow Global Technologies Llc Método para preparar una membrana de poliamida de material compuesto
JP5934252B2 (ja) 2011-01-24 2016-06-15 ダウ グローバル テクノロジーズ エルエルシー 複合ポリアミド膜
CN103328081B (zh) 2011-01-24 2015-08-19 陶氏环球技术有限责任公司 复合聚酰胺膜
JP6054968B2 (ja) * 2011-08-31 2016-12-27 ダウ グローバル テクノロジーズ エルエルシー アミン−反応性およびリン−含有官能基を含むモノマーから誘導された複合ポリアミド膜
WO2013048764A1 (en) 2011-09-29 2013-04-04 Dow Global Technologies Llc Method for preparing high purity mono-hydrolyzed acyl halide compound
EP2760570B1 (en) * 2011-09-29 2015-10-21 Dow Global Technologies LLC Composite polyamide membrane derived from carboxylic acid containing acyl halide monomer
GB201117950D0 (en) * 2011-10-18 2011-11-30 Imp Innovations Ltd Membranes for separation
US9073015B2 (en) 2012-01-06 2015-07-07 Dow Global Technologies Llc Composite polyamide membrane
RU2492916C1 (ru) * 2012-03-12 2013-09-20 Закрытое акционерное общество "РМ Нанотех" Композитная полимерная мембрана для нанофильтрации и способ ее получения
CN104394968B (zh) 2012-04-09 2017-07-18 3M创新有限公司 薄膜复合膜结构
WO2014014664A1 (en) 2012-07-19 2014-01-23 Dow Global Technologies Llc Composite polyamide membrane with increased carboxylic acid functionality
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
WO2014104241A1 (ja) * 2012-12-27 2014-07-03 東レ株式会社 複合半透膜
US10137418B2 (en) 2013-01-14 2018-11-27 Dow Global Technologies Llc Composite polyamide membrane made via interfacial polymerization using a blend of non-polar solvents
CN104918688B (zh) 2013-01-14 2016-12-14 陶氏环球技术有限责任公司 包含经取代苯甲酰胺单体的复合聚酰胺膜
US9289729B2 (en) 2013-03-16 2016-03-22 Dow Global Technologies Llc Composite polyamide membrane derived from carboxylic acid containing acyl halide monomer
US9051417B2 (en) 2013-03-16 2015-06-09 Dow Global Technologies Llc Method for solubilizing carboxylic acid-containing compound in hydrocarbon solvent
US9051227B2 (en) 2013-03-16 2015-06-09 Dow Global Technologies Llc In-situ method for preparing hydrolyzed acyl halide compound
US9387442B2 (en) 2013-05-03 2016-07-12 Dow Global Technologies Llc Composite polyamide membrane derived from an aliphatic acyclic tertiary amine compound
WO2015084511A1 (en) 2013-12-02 2015-06-11 Dow Global Technologies Llc Composite polyamide membrane post treated with nitrious acid
US9452391B1 (en) 2013-12-02 2016-09-27 Dow Global Technologies Llc Composite polyamide membrane treated with dihyroxyaryl compounds and nitrous acid
US9616392B2 (en) 2014-01-09 2017-04-11 Dow Global Technologies Llc Composite polyamide membrane having high acid content and low azo content
KR102273550B1 (ko) 2014-01-09 2021-07-07 다우 글로벌 테크놀로지스 엘엘씨 아조 함량 및 높은 산 함량을 갖는 복합 폴리아미드 막
ES2677994T3 (es) 2014-01-09 2018-08-08 Dow Global Technologies Llc Membrana de poliamida de material compuesto con contenido azoico preferido
WO2015167759A1 (en) 2014-04-28 2015-11-05 Dow Global Technologies Llc Composite polyamide membrane post-treated with nitrous acid
ES2704238T3 (es) 2014-05-14 2019-03-15 Dow Global Technologies Llc Membrana de poliamida de material compuesto sometida a tratamiento posterior con ácido nitroso
KR102359211B1 (ko) 2014-05-14 2022-02-07 다우 글로벌 테크놀로지스 엘엘씨 아질산으로 후처리된 복합 폴리아미드 막
US20170065938A1 (en) 2014-05-14 2017-03-09 Dow Global Technologies Llc Composite polyamide membrane post-treated with nitrous acid
US9795928B2 (en) 2014-06-24 2017-10-24 Nano And Advanced Materials Institute Limited Stepwise interfacial polymerization technique with different reagent solution designs to prepare hollow fiber nanofiltration membrane composites
EP3329986B1 (en) * 2015-07-31 2025-05-14 Toray Industries, Inc. Separation membrane, separation membrane element, water purifier and method for producing separation membrane
US9861940B2 (en) 2015-08-31 2018-01-09 Lg Baboh2O, Inc. Additives for salt rejection enhancement of a membrane
CN106914139A (zh) * 2015-12-24 2017-07-04 通用电气公司 制备膜的方法及相应的膜和过滤元件
US9737859B2 (en) 2016-01-11 2017-08-22 Lg Nanoh2O, Inc. Process for improved water flux through a TFC membrane
US10960359B2 (en) * 2016-02-05 2021-03-30 King Abdullah University Of Science And Technology Method of making reaction induced phase separation membranes and uses thereof
US10155203B2 (en) 2016-03-03 2018-12-18 Lg Nanoh2O, Inc. Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents
KR101997137B1 (ko) 2017-01-06 2019-07-08 한국화학연구원 붕소 제거능이 우수한 역삼투막 및 이의 제조방법
US10646829B2 (en) 2017-06-22 2020-05-12 Teledyne Scientific & Imaging, Llc High flux, chlorine resistant coating for sulfate removal membranes
KR102169136B1 (ko) 2017-11-15 2020-10-23 한국화학연구원 가교반응을 통한 멤브레인 및 이의 제조방법
KR102169137B1 (ko) 2017-11-15 2020-10-23 한국화학연구원 염 제거율 및 보론 제거율이 향상된 폴리아미드 복합 멤브레인 및 이의 제조방법
WO2019154831A1 (en) 2018-02-06 2019-08-15 Aquaporin A/S Tubular membrane, method for preparation thereof, and tubular membrane module
US10124297B1 (en) * 2018-03-06 2018-11-13 Kuwait Institute For Scientific Research Thin film nanocomposite nanofiltration membrane
EP4081333A4 (en) * 2019-12-27 2023-12-27 Council of Scientific & Industrial Research HIGHLY SELECTIVE MEMBRANE MADE OF ULTRA-THIN POLYMER NANOFOILS AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551244A (en) * 1968-04-03 1970-12-29 North Star Research & Dev Inst Method of producing an ultrathin polymer film laminate
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3687842A (en) * 1969-07-08 1972-08-29 Consiglio Nazionale Ricerche Osmosis process
US3696031A (en) * 1969-07-08 1972-10-03 Consiglio Nazionale Ricerche Osmosis process
US3600350A (en) * 1970-04-20 1971-08-17 Du Pont Poly(p-benzamide) composition,process and product
US3699038A (en) * 1970-04-22 1972-10-17 Celanese Corp Production of improved semipermeable polybenzimidazole membranes
US3744642A (en) * 1970-12-30 1973-07-10 Westinghouse Electric Corp Interface condensation desalination membranes
US3904519A (en) * 1971-10-19 1975-09-09 Us Interior Reverse osmosis process using crosslinked aromatic polyamide membranes
US3948823A (en) * 1972-08-01 1976-04-06 Allied Chemical Corporation Method of making permselective interpolymer membranes
JPS5223346B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-08-30 1977-06-23
IL43201A (en) * 1972-09-19 1976-11-30 North Star Res & Dev Reverse osmosis membrane and its preparation
US4039440A (en) * 1972-09-19 1977-08-02 The United States Of America As Represented By The Secretary Of The Interior Reverse osmosis membrane
GB1462171A (en) * 1972-12-21 1977-01-19 Nederlandse Appl Scient Res Process for making thin polymer foils and their use in a dynamic membrane
US3993625A (en) * 1973-05-28 1976-11-23 Toray Industries, Inc. Permselective polymeric membranes of organic polyamide or polyhydrazide
US3951789A (en) * 1973-10-11 1976-04-20 Allied Chemical Corporation Novel high diffusivity membranes
US4085090A (en) * 1974-05-31 1978-04-18 Teijin Limited Aromatic polymers containing a nitrogen-containing ring group, and process for preparation thereof
US3951815A (en) * 1974-09-05 1976-04-20 Universal Oil Products Company Composite semipermeable membranes made from polyethylenimine
US3926798A (en) * 1974-10-17 1975-12-16 Us Interior Reverse osmosis membrane
JPS5633961B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-12-19 1981-08-07
US4020142A (en) * 1975-08-21 1977-04-26 Celanese Corporation Chemical modification of polybenzimidazole semipermeable
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
JPS53146275A (en) * 1977-05-27 1978-12-20 Teijin Ltd Production of selective permeative-membrane of high water permeability
US4265745A (en) * 1977-05-25 1981-05-05 Teijin Limited Permselective membrane
JPS53149874A (en) * 1977-06-03 1978-12-27 Nippon Shokubai Kagaku Kogyo Co Ltd Production of compound semipermeable membrane
JPS54151570A (en) * 1978-05-22 1979-11-28 Teijin Ltd Selectively permeable composite membrane and its manufacture
JPS5535910A (en) * 1978-09-06 1980-03-13 Teijin Ltd Permselectivity composite membrane and preparation thereof
JPS5549106A (en) * 1978-10-06 1980-04-09 Teijin Ltd Selective permeable composite membrane and production thereof
JPS5554004A (en) * 1978-10-18 1980-04-21 Teijin Ltd Selective permeable membrane and its manufacturing

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JPH0138522B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-08-15
EP0014054A1 (en) 1980-08-06
JPS56500062A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-01-22
EP0022827A1 (en) 1981-01-28
EP0014054B1 (en) 1983-08-03
CA1144433A (en) 1983-04-12
WO1980001464A1 (en) 1980-07-24
US4259183A (en) 1981-03-31

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