KR920702824A - 내염소성 반투막 및 그 제조방법 - Google Patents

내염소성 반투막 및 그 제조방법

Info

Publication number
KR920702824A
KR920702824A KR1019910701096A KR910701096A KR920702824A KR 920702824 A KR920702824 A KR 920702824A KR 1019910701096 A KR1019910701096 A KR 1019910701096A KR 910701096 A KR910701096 A KR 910701096A KR 920702824 A KR920702824 A KR 920702824A
Authority
KR
South Korea
Prior art keywords
semipermeable membrane
chlorine resistant
resistant semipermeable
membrane according
chlorine
Prior art date
Application number
KR1019910701096A
Other languages
English (en)
Other versions
KR970006838B1 (ko
Inventor
엔. 트랜 친
시. 츄 홍
지. 라이트 윌리엄
Original Assignee
제라드 피. 루우니
알라이드-시그날 인코포레이티드
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 제라드 피. 루우니, 알라이드-시그날 인코포레이티드 filed Critical 제라드 피. 루우니
Publication of KR920702824A publication Critical patent/KR920702824A/ko
Application granted granted Critical
Publication of KR970006838B1 publication Critical patent/KR970006838B1/ko

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
    • B01D69/1213—Laminated layers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B5/00—Anti-hunting arrangements
    • G05B5/01—Anti-hunting arrangements electric
    • 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
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0006—Organic membrane manufacture by chemical reactions
    • 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
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • 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
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • 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
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/60—Polyamines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B01D2323/081—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/219—Specific solvent system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/48—Influencing the pH
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/30—Chemical resistance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31536—Including interfacial reaction product of adjacent layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

내용 없음

Description

내염소성 반투막 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (13)

  1. 폴리히드릭 화합물을 함유하는 방향족 폴리아민의 수용액을 다공성 지지보강물질상에 도포 적용하고; 과량의 용액을 제거하고; 도포된 다공성 지지보강 물질을 방향족 폴리카르복시산 할라이드의 유기용매용액과 접촉시켜 상기 다공성 지지물질의 표면상에 계면축합반응산물을 형성시키고; 결과의 합성물을 내염소성 반투막을 형성하는 경화조건하에서 경화시킴에 의하여 제조되는, 내염소성 반투막.
  2. 제1항에 있어서, 상기 경화조건이 20-150℃의 온도에서 10분-2시간 동안 처리하는 것임을 특징으로 하는, 내염소성 반투막.
  3. 제1항에 있어서, 상기 방향족 폴리아민이 m-페닐렌디아민, 4-클로로페닐렌디아민, 5-클로로페닐렌디아민, 및 그 혼합물로 구성된 군으로부터 선택된 것임을 특징으로 하는, 내염소성 반투막.
  4. 제1항에 있어서, 상기 방향족 폴리카르복시산할라이드가 이소프탈로일 클로라이드, 트리메조일 클로라이드 및 테레프탈로일 클로라이드로 구성된 군으로부터 선택된 것임을 특징으로 하는, 내염소성 반투막.
  5. 제1항에 있어서, 상기 폴리히드릭 화합물이 에틸렌글리콜, 글리세린, 프로필렌글리콜 및 폴리에틸렌 글리콜로 구성된 군으로부터 선택된 것임을 특징으로 하는, 내염소성 반투막.
  6. 제1항에 있어서, 상기 수용액이 산수용체를 함유하는 것임을 특징으로 하는, 내염소성 반투막.
  7. 제1항에 있어서, 상기 수용액의 pH가 9-11인 것을 특징으로 하는, 내염소성 반투막.
  8. 제1항에 있어서, 상기 경화막이 알칼리 화합물을 세척처리 되어진 것임을 특징으로 하는, 내염소성 반투막.
  9. 제8항에 있어서, 경화막이 20-100℃ 범위의 온도에서 세척되어진 것임을 특징으로 하는, 내염소성 반투막.
  10. 제1항에 있어서, 반투막이 알칼리 화합물과의 세척처리후 침출처리 되어진 것임을 특징으로 하는, 내염소성 반투막.
  11. 제10항에 있어서, 침출처리가 20-100℃의 온도에서 아황산수소나트륨의 존재하에 수행되는 것을 특징으로 하는, 내염소성 반투막.
  12. 제1항에 있어서, 상기 반투막이 침출처리후 막상에 코딩을 형성하도록 폴리히드릭 화합물과 함께 처리된 것을 특징으로 하는, 내염소성 반투막.
  13. 폴리히드릭 화합물 및 산수용체를 함유하는 방향족 폴리아민의 수용액을 다공성 지지보강물질상에 도포적용하고; 과량의 용액을 제거하고; 상기 다공성 지지물질의 표면상에 계면축합 반응산물이 형성되도록, 상기 도포된 다공성 지지물질을 방향족 폴리카르복시산 할라이드의 유기용매 용액과 접촉시키고; 결과의 합성물을 경화조건에서 경화시키고; 경화된 막을 높은 온도 및 pH에서 알칼리 화합물로 세척하고; 세척된 합성물을 고온에서 아황산수소나트륨과 함께 침출시키고; 침출처리된 합성물을 폴리히드릭 화합물과 함께 처리하고; 결과의 내염소성 반투막을 회수하는 것으로 구성된, 내염소성 반투막의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910701096A 1987-06-08 1989-03-16 내염소성 반투막 및 그 제조방법 KR970006838B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US07/059,295 US4830885A (en) 1987-06-08 1987-06-08 Chlorine-resistant semipermeable membranes
PCT/US1989/001087 WO1990010494A1 (en) 1987-06-08 1989-03-16 Chlorine-resistant semipermeable membranes
ZA892353A ZA892353B (en) 1987-06-08 1989-03-30 Chlorine-resistant semipermeable membranes
CN89102360A CN1029824C (zh) 1987-06-08 1989-04-17 耐氯半透膜

Publications (2)

Publication Number Publication Date
KR920702824A true KR920702824A (ko) 1992-10-28
KR970006838B1 KR970006838B1 (ko) 1997-04-30

Family

ID=36721083

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910701096A KR970006838B1 (ko) 1987-06-08 1989-03-16 내염소성 반투막 및 그 제조방법

Country Status (8)

Country Link
US (1) US4830885A (ko)
EP (1) EP0462967B1 (ko)
KR (1) KR970006838B1 (ko)
CN (1) CN1029824C (ko)
AT (1) ATE82703T1 (ko)
AU (1) AU634717B2 (ko)
WO (1) WO1990010494A1 (ko)
ZA (1) ZA892353B (ko)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4830885A (en) * 1987-06-08 1989-05-16 Allied-Signal Inc. Chlorine-resistant semipermeable membranes
US4938872A (en) * 1989-06-07 1990-07-03 E. I. Du Pont De Nemours And Company Treatment for reverse osmosis membranes
US4983291A (en) * 1989-12-14 1991-01-08 Allied-Signal Inc. Dry high flux semipermeable membranes
US5102549A (en) 1989-12-27 1992-04-07 Union Carbide Chemicals & Plastics Technology Corporation Treatment of lower glycol-containing operative fluids
US5034134A (en) * 1989-12-27 1991-07-23 Union Carbide Chemicals And Plastics Technology Corporation Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
US5194159A (en) * 1989-12-27 1993-03-16 Union Carbide Chemicals & Plastics Technology Corporation Treatment of lower glycol-containing operative fluids
DE69211731T2 (de) * 1991-03-12 1996-10-31 Toray Industries Verfahren zur Herstellung einer teildurchlässigen Verbundmembran
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
US5368889A (en) * 1993-04-16 1994-11-29 The Dow Chemical Company Method of making thin film composite membranes
US5624561A (en) * 1993-07-28 1997-04-29 Toyo Boseki Kabushiki Kaisha Cellulose acetate hemodialysis membrane
SE503195C2 (sv) * 1994-08-31 1996-04-15 Electrolux Ab Morfolindiamin, interfaspolymer baserad på denna amin, membran med osmotiska egenskaper innefattande denna polymer, sätt att framställa membranet samt användning av detta vid vattenrening.
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
US5614099A (en) * 1994-12-22 1997-03-25 Nitto Denko Corporation Highly permeable composite reverse osmosis membrane, method of producing the same, and method of using the same
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
US5989426A (en) * 1995-07-05 1999-11-23 Nitto Denko Corp. Osmosis membrane
US6171497B1 (en) 1996-01-24 2001-01-09 Nitto Denko Corporation Highly permeable composite reverse osmosis membrane
JP3681214B2 (ja) * 1996-03-21 2005-08-10 日東電工株式会社 高透過性複合逆浸透膜
FR2761617A1 (fr) * 1997-04-04 1998-10-09 Fluid Sys Corp Membranes de separation selective
US6015495A (en) * 1998-02-18 2000-01-18 Saehan Industries Incorporation Composite polyamide reverse osmosis membrane and method of producing the same
US6063278A (en) * 1998-04-28 2000-05-16 Saehan Industries Inc. Composite polyamide reverse osmosis membrane and method of producing the same
EP0992277B1 (en) * 1998-10-09 2004-04-07 Saehan Industries, Inc. Dry semipermeable reverse osmosis membrane and process for preparing the same using saccharides
US6368507B1 (en) 1998-10-14 2002-04-09 Saekan Industries Incorporation Composite polyamide reverse osmosis membrane and method of producing the same
US6245234B1 (en) 1999-06-03 2001-06-12 Saehan Industries Incorporation Composite polyamide reverse osmosis membrane and method of producing the same
US6833073B2 (en) * 2001-10-09 2004-12-21 Pti Advanced Filtration, Inc. Composite nanofiltration and reverse osmosis membranes and method for producing the same
EP1483033A4 (en) * 2002-03-01 2005-04-13 Osmonics Inc METHOD FOR PRODUCING SEMI-PERMANENT MEMBRANES WITH IMPROVED PERMEABILITY
WO2004078328A1 (en) * 2003-03-03 2004-09-16 General Electric Company Process for preparing semipermeable membranes
JP4656502B2 (ja) * 2004-10-01 2011-03-23 日東電工株式会社 複合半透膜及びその製造方法
JP4656503B2 (ja) * 2004-10-01 2011-03-23 日東電工株式会社 複合半透膜及びその製造方法
JP4656511B2 (ja) * 2004-10-04 2011-03-23 日東電工株式会社 複合逆浸透膜の製造方法
NL1030288C2 (nl) * 2004-10-29 2006-10-09 Toray Industries Semipermeabel composietmembraan, productiewerkwijze daarvan, en element, fluïdumscheidingsinstallatie en werkwijze voor behandeling van water onder toepassing van hetzelfde.
US20060207930A1 (en) * 2005-03-15 2006-09-21 Yeager Gary W Interfacial composite structure and method of making them
US20060249446A1 (en) * 2005-05-04 2006-11-09 Gary Yeager Solvent-resistant composite membrane composition
US7537697B2 (en) * 2006-02-01 2009-05-26 Woongjin Chemical Co., Ltd. Selective membrane having a high fouling resistance
US7913857B2 (en) * 2006-02-01 2011-03-29 Woongjin Chemical Co., Ltd. Selective membrane having a high fouling resistance
US20070227966A1 (en) * 2006-03-31 2007-10-04 Koo Ja-Young Composite polyamide reverse osmosis membrane showing high boron rejection and method of producing the same
JP2008093544A (ja) * 2006-10-10 2008-04-24 Nitto Denko Corp 複合半透膜及びその製造方法
JP4936438B2 (ja) * 2006-10-10 2012-05-23 日東電工株式会社 乾燥複合半透膜の製造方法
JP2008246419A (ja) * 2007-03-30 2008-10-16 Nitto Denko Corp 複合半透膜の製造方法
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
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
KR20100003799A (ko) 2008-07-02 2010-01-12 웅진케미칼 주식회사 높은 안티파울링성을 가지는 선택적 분리막 및 그의제조방법
WO2011008549A2 (en) * 2009-06-29 2011-01-20 NanoH2O Inc. Improved hybrid tfc ro membranes with nitrogen additives
AU2011252850B2 (en) 2010-05-14 2016-03-17 Baxalta GmbH OspA chimeras and use thereof in vaccines
GB201012083D0 (en) 2010-07-19 2010-09-01 Imp Innovations Ltd Thin film composite membranes for separation
WO2012064939A2 (en) 2010-11-10 2012-05-18 Nanoh2O, Inc. Improved hybrid tfc ro membranes with non-metallic additives
EP2632577B1 (en) 2011-01-24 2014-10-01 Dow Global Technologies LLC Method for making a composite polyamide membrane
US8820540B2 (en) 2011-01-28 2014-09-02 Woongjin Chemical Co., Ltd. Method for preparing a filtration membrane and filtration membrane prepared by said method
KR101240956B1 (ko) 2011-02-18 2013-03-11 웅진케미칼 주식회사 내오염성능이 우수한 역삼투 복합막 및 그의 제조방법
US9399196B2 (en) 2011-08-31 2016-07-26 Dow Global Technologies Llc Composite polyamide membrane derived from monomer including amine-reactive and phosphorous-containing functional groups
WO2013048764A1 (en) 2011-09-29 2013-04-04 Dow Global Technologies Llc Method for preparing high purity mono-hydrolyzed acyl halide compound
GB201117950D0 (en) 2011-10-18 2011-11-30 Imp Innovations Ltd Membranes for separation
ES2806675T3 (es) 2012-01-06 2021-02-18 Ddp Specialty Electronic Mat Us Inc Método de preparación de una membrana de poliamida de material compuesto
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
WO2014109946A1 (en) 2013-01-14 2014-07-17 Dow Global Technologies Llc Composite polyamide membrane
WO2014109947A1 (en) 2013-01-14 2014-07-17 Dow Global Technologies Llc Composite polyamide membrane comprising substituted benzamide monomer
WO2014158660A1 (en) 2013-03-14 2014-10-02 Dow Global Technologies Llc Composite polyamide membrane including dissolvable polymer coating
US9289729B2 (en) 2013-03-16 2016-03-22 Dow Global Technologies Llc Composite polyamide membrane derived from carboxylic acid containing acyl halide monomer
US9051227B2 (en) 2013-03-16 2015-06-09 Dow Global Technologies Llc In-situ method for preparing hydrolyzed acyl halide compound
US9051417B2 (en) 2013-03-16 2015-06-09 Dow Global Technologies Llc Method for solubilizing carboxylic acid-containing compound in hydrocarbon solvent
US9387442B2 (en) 2013-05-03 2016-07-12 Dow Global Technologies Llc Composite polyamide membrane derived from an aliphatic acyclic tertiary amine compound
WO2015084512A1 (en) 2013-12-02 2015-06-11 Dow Global Technologies Llc Composite polyamide membrane treated with dihyroxyaryl compounds and nitrous acid
EP3077088B1 (en) 2013-12-02 2017-12-27 Dow Global Technologies LLC Method for forming a composite polyamide membrane post treated with nitrious acid
EP3088073B1 (en) * 2013-12-26 2020-11-18 LG Chem, Ltd. High-functional polyamide-based dry water treatment separator and method for manufacturing same
KR102273550B1 (ko) 2014-01-09 2021-07-07 다우 글로벌 테크놀로지스 엘엘씨 아조 함량 및 높은 산 함량을 갖는 복합 폴리아미드 막
US9616392B2 (en) 2014-01-09 2017-04-11 Dow Global Technologies Llc Composite polyamide membrane having high acid content and low azo content
ES2677994T3 (es) 2014-01-09 2018-08-08 Dow Global Technologies Llc Membrana de poliamida de material compuesto con contenido azoico preferido
JP2015147194A (ja) * 2014-02-07 2015-08-20 日東電工株式会社 複合半透膜の製造方法
GB201403432D0 (en) 2014-02-27 2014-04-16 Univ Leuven Kath Improved method for synthesis of composite membranes
CN106257977B (zh) 2014-04-28 2019-10-29 陶氏环球技术有限责任公司 用亚硝酸后处理的复合聚酰胺膜
CN106232216B (zh) 2014-05-14 2019-10-11 陶氏环球技术有限责任公司 用亚硝酸后处理的复合聚酰胺膜
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
CN105771700A (zh) * 2014-12-15 2016-07-20 华东理工大学 采用混合二胺单体的耐氯纳滤膜及其制备方法
US9861940B2 (en) 2015-08-31 2018-01-09 Lg Baboh2O, Inc. Additives for salt rejection enhancement of a membrane
US9737859B2 (en) 2016-01-11 2017-08-22 Lg Nanoh2O, Inc. Process for improved water flux through a TFC membrane
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
WO2018080999A1 (en) * 2016-10-26 2018-05-03 Emd Millipore Corporation Reduction of leachable beta-glucan levels from cellulose-containing filter materials
US10646829B2 (en) 2017-06-22 2020-05-12 Teledyne Scientific & Imaging, Llc High flux, chlorine resistant coating for sulfate removal membranes
CN109603587A (zh) * 2018-11-16 2019-04-12 蓝星（杭州）膜工业有限公司 一种抗氧化不变色复合反渗透膜的制备方法

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920612A (en) * 1963-01-21 1975-11-18 Standard Oil Co Preparation of film forming polymer from carbocyclic aromatic diamine and acyl halide of trimellitic acid anhydride
US3260691A (en) * 1963-05-20 1966-07-12 Monsanto Co Coating compositions prepared from condensation products of aromatic primary diamines and aromatic tricarboxylic compounds
US3480588A (en) * 1963-08-20 1969-11-25 Monsanto Co Stable coating composition of a tricarboxylic acid or its partial or full ester and a diamine
US4048144A (en) * 1966-11-25 1977-09-13 Standard Oil Company (Indiana) Preparation of solid polymers from aromatic primary diamine and acyl halide of trimellitic anhydride
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3710945A (en) * 1969-11-26 1973-01-16 Du Pont Preservation of polyamidic membranes
US3600350A (en) * 1970-04-20 1971-08-17 Du Pont Poly(p-benzamide) composition,process and product
US3904519A (en) * 1971-10-19 1975-09-09 Us Interior Reverse osmosis process using crosslinked aromatic polyamide membranes
JPS5223346B2 (ko) * 1972-08-30 1977-06-23
US3993625A (en) * 1973-05-28 1976-11-23 Toray Industries, Inc. Permselective polymeric membranes of organic polyamide or polyhydrazide
US3951815A (en) * 1974-09-05 1976-04-20 Universal Oil Products Company Composite semipermeable membranes made from polyethylenimine
US4265745A (en) * 1977-05-25 1981-05-05 Teijin Limited Permselective membrane
US4286537A (en) * 1979-01-10 1981-09-01 Hvide J Erik Seagoing separable tug and barge construction
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane
IL64967A0 (en) * 1981-03-17 1982-04-30 Aligena Ag Semipermeable membranes containing modified polysulfones,their manufacture and their use
DE3220376A1 (de) * 1982-05-29 1983-12-01 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Membranfilter fuer mikrofiltration und verfahren zu seiner herstellung
JPS59115704A (ja) * 1982-12-24 1984-07-04 Toray Ind Inc 半透膜の処理法
US4606943A (en) * 1983-03-18 1986-08-19 Culligan International Company Method for preparation of semipermeable composite membrane
US4772394A (en) * 1984-12-26 1988-09-20 Uop Inc. Chlorine-resistant semipermeable membranes
US4661254A (en) * 1985-05-23 1987-04-28 Uop Inc. Chlorine-resistant semipermeable membranes
US4761234A (en) * 1985-08-05 1988-08-02 Toray Industries, Inc. Interfacially synthesized reverse osmosis membrane
JPS62140608A (ja) * 1985-12-17 1987-06-24 Nitto Electric Ind Co Ltd 複合半透膜、その製造方法及び水溶液の処理方法
EP0227043A3 (en) * 1985-12-19 1988-01-27 Sumitomo Chemical Company, Limited Composite semipermeable membrane and process for producing the same
US4626468A (en) * 1986-04-23 1986-12-02 E. I. Du Pont De Nemours And Company Microporous support layer with interfacially polymerized copolyamide thereon
US4830885A (en) * 1987-06-08 1989-05-16 Allied-Signal Inc. Chlorine-resistant semipermeable membranes
US4792404A (en) * 1988-03-28 1988-12-20 Allied-Signal Inc. Desalination of saline water

Also Published As

Publication number Publication date
CN1046472A (zh) 1990-10-31
CN1029824C (zh) 1995-09-27
ATE82703T1 (de) 1992-12-15
AU634717B2 (en) 1993-03-04
US4830885A (en) 1989-05-16
EP0462967A1 (en) 1992-01-02
WO1990010494A1 (en) 1990-09-20
EP0462967B1 (en) 1992-11-25
KR970006838B1 (ko) 1997-04-30
AU3966189A (en) 1990-10-09
ZA892353B (en) 1989-12-27

Similar Documents

Publication Publication Date Title
KR920702824A (ko) 내염소성 반투막 및 그 제조방법
CN1028609C (zh) 高通量半透膜
US3904519A (en) Reverse osmosis process using crosslinked aromatic polyamide membranes
US5510527A (en) Acid chloride
KR850001719A (ko) 에틸렌옥사이드로 부터 글리콜의 제법
JPS62253626A (ja) ポリアリ−レンスルフイドの製造方法
IL63398A0 (en) Ultrafiltration membrane and its production
IL43201A (en) Reverse osmosis membrane and its preparation
US3152061A (en) Permselective cationic membrane and process for producing the same
EP0308153B1 (en) P-xylylenediamide/diimide composite ro membranes
US3527853A (en) Process for manufacturing semipermeable cellulose acetate membranes suitable for desalination
KR900701377A (ko) 내염소성 반투막 및 그 제조방법
KR880005169A (ko) 에폭시수지의 제조방법
AU616096B2 (en) P-xylylenediamide/diimide composite ro membranes
JPS6418406A (en) Permselective hollow yarn composite membrane and production thereof
KR920004657A (ko) 수분 투과성 방수 직물 및 이의 제조방법
JPS6456108A (en) Production of composite semipermeable membrane
JPS61129155A (ja) アミンベ−ス前駆体化合物およびこれからなる複合膜
JPH05317667A (ja) 逆浸透法用複合膜の製造方法
JPH0232009B2 (ko)
JPS5549106A (en) Selective permeable composite membrane and production thereof
DE69000710D1 (de) Verfahren zur herstellung von chlorbestaendigen halbdurchlaessigen polyestermembranen.
JP2682038B2 (ja) 複合半透膜およびその製造方法
KR830005287A (ko) 폴리아미드(polyamide) 계물질의 제조방법
JPS6418411A (en) Permselective hollow yarn composite membrane and production thereof

Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee