MX165793B - Mejoras en membranas semipermeables secas de alto flujo - Google Patents
Mejoras en membranas semipermeables secas de alto flujoInfo
- Publication number
- MX165793B MX165793B MX023614A MX2361490A MX165793B MX 165793 B MX165793 B MX 165793B MX 023614 A MX023614 A MX 023614A MX 2361490 A MX2361490 A MX 2361490A MX 165793 B MX165793 B MX 165793B
- Authority
- MX
- Mexico
- Prior art keywords
- acids
- high flow
- solution
- porous support
- support material
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title abstract 3
- 239000002253 acid Substances 0.000 abstract 5
- 150000007513 acids Chemical class 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 3
- 150000004820 halides Chemical class 0.000 abstract 2
- -1 polysulfonyl Polymers 0.000 abstract 2
- 150000001412 amines Chemical class 0.000 abstract 1
- 150000001413 amino acids Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 235000005985 organic acids Nutrition 0.000 abstract 1
- 229920000768 polyamine Polymers 0.000 abstract 1
- 229920001228 polyisocyanate Polymers 0.000 abstract 1
- 239000005056 polyisocyanate Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 150000003460 sulfonic acids Chemical class 0.000 abstract 1
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
- 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
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
La presente invención se refiere a mejoras en membranas semipermeables secas de alto flujo caracterizadas porque se prepara al revestir un material aproroso de soporte con una solución acuosa de una poliamina, eliminar el exceso de solución; poner en contacto el material proroso de soporte ya revestido con una solución en disolvente de un haluro de poliacilo, haluro de polisulfonilo o poliisocianato para formar un producto de reacción por condensación dentro o sobre la superficie del material poroso de soporte; tratar el compuesto resultante con una solución de un ácido seleccionado del grupo consistente en ácidos hidropolicarboxílicos, ácidos policarboxílicos poliaminoalquilénicos, ácidos sulfónicos, sales de amina de ácidos, aminoácidos, sales aminoácidos, ácidos poliméricos y ácidos orgánicos, secar y recuperar la membrana semipermeable de alto flujo.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/450,637 US4983291A (en) | 1989-12-14 | 1989-12-14 | Dry high flux semipermeable membranes |
Publications (1)
Publication Number | Publication Date |
---|---|
MX165793B true MX165793B (es) | 1992-12-03 |
Family
ID=23788905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX023614A MX165793B (es) | 1989-12-14 | 1990-06-12 | Mejoras en membranas semipermeables secas de alto flujo |
Country Status (14)
Country | Link |
---|---|
US (1) | US4983291A (es) |
EP (1) | EP0505502B1 (es) |
CN (1) | CN1030689C (es) |
AU (1) | AU639070B2 (es) |
CA (1) | CA2069510C (es) |
DE (1) | DE69003688T2 (es) |
DK (1) | DK0505502T3 (es) |
ES (1) | ES2044723T3 (es) |
IE (1) | IE66251B1 (es) |
MX (1) | MX165793B (es) |
NZ (1) | NZ236053A (es) |
PT (1) | PT96189A (es) |
WO (1) | WO1991008828A1 (es) |
ZA (1) | ZA909602B (es) |
Families Citing this family (99)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US5395636A (en) * | 1993-07-26 | 1995-03-07 | Pall Corporation | Method of pretreating a porous medium |
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 |
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 |
US6306301B1 (en) | 1996-10-31 | 2001-10-23 | University Of Kentucky Research Foundation | Silica-based membrane sorbent for heavy metal sequestration |
US6544418B1 (en) | 1996-10-31 | 2003-04-08 | University Of Kentucky Research Foundation | Preparing and regenerating a composite polymer and silica-based membrane |
US6103121A (en) * | 1996-10-31 | 2000-08-15 | University Of Kentucky Research Foundation | Membrane-based sorbent for heavy metal sequestration |
US6139742A (en) * | 1996-10-31 | 2000-10-31 | University Of Kentucky Research Foundation | Membrane-based sorbent for heavy metal sequestration |
WO1998041313A1 (en) * | 1997-03-14 | 1998-09-24 | Exxon Research And Engineering Company | Membranes comprising aminoacid salts in polyamine polymers and blends |
KR100506537B1 (ko) * | 1997-08-28 | 2005-11-08 | 주식회사 새 한 | 가교 폴리아미드계 역삼투 분리막의 제조방법 |
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 |
US6162358A (en) * | 1998-06-05 | 2000-12-19 | Nl Chemicals Technologies, Inc. | High flux reverse osmosis membrane |
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 |
DE19934734C2 (de) * | 1999-07-23 | 2002-03-07 | Saehan Ind Inc | Polyamid-Umkehrosmosemembran |
DE19934737C2 (de) * | 1999-07-23 | 2001-11-29 | Saehan Ind Inc | Polyamid-Umkehrosmosemembran |
US6337018B1 (en) * | 2000-04-17 | 2002-01-08 | The Dow Chemical Company | Composite membrane and method for making the same |
US6837996B2 (en) * | 2000-05-23 | 2005-01-04 | Ge Osmonics, Inc. | Polysulfonamide matrices |
EP1289628B1 (en) * | 2000-05-23 | 2007-04-04 | Osmonics, Inc. | Acid stable membranes for nanofiltration |
US6783711B2 (en) * | 2000-05-23 | 2004-08-31 | Ge Osmonics, Inc. | Process for preparing a sulfonamide polymer matrix |
IL153045A0 (en) * | 2000-05-23 | 2003-06-24 | Osmonics Inc | Modified sulfonamide polymers |
US7001518B1 (en) * | 2000-11-28 | 2006-02-21 | Hydranautics | Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof |
US20030015470A1 (en) * | 2001-07-20 | 2003-01-23 | Muralidhara Harapanahalli S. | Nanofiltration water-softening apparatus and method |
US6833073B2 (en) * | 2001-10-09 | 2004-12-21 | Pti Advanced Filtration, Inc. | Composite nanofiltration and reverse osmosis membranes and method for producing the same |
US7658872B2 (en) * | 2002-03-01 | 2010-02-09 | Ge Osmonics, Inc. | Process for preparing semipermeable membranes having improved permeability |
CN100411719C (zh) * | 2003-03-03 | 2008-08-20 | 通用电气公司 | 半渗透膜的制备方法 |
DE102004045848B3 (de) * | 2004-09-20 | 2006-05-11 | Gkss-Forschungszentrum Geesthacht Gmbh | Verfahren zur Herstellung von Hohlfadenmembranen |
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 |
JP2006102594A (ja) * | 2004-10-01 | 2006-04-20 | Nitto Denko Corp | 複合半透膜の製造方法 |
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 |
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 |
EP1866064A4 (en) * | 2005-03-09 | 2009-08-19 | Univ California | NANOCOMPOSITE MEMBRANES AND METHODS OF MAKING AND USING SAME |
US7479300B2 (en) * | 2005-03-30 | 2009-01-20 | Woongjin Chemical Co., Ltd. | Composite polyamide reverse osmosis membrane and method of producing the same |
RU2008104828A (ru) * | 2005-07-12 | 2009-08-20 | Каргилл, Инкорпорейтед (US) | Способ умягчения воды (варианты) |
KR100680109B1 (ko) * | 2005-07-27 | 2007-02-07 | 웅진코웨이주식회사 | 폴리아미드 역삼투 복합막 및 그 제조방법 |
US7909179B2 (en) * | 2005-08-16 | 2011-03-22 | Ge Osmonics, Inc. | Modified polyamide matrices and methods for their preparation |
US7575687B2 (en) | 2005-08-16 | 2009-08-18 | Ge Osmonics, Inc. | Membranes and methods useful for caustic applications |
US7913857B2 (en) * | 2006-02-01 | 2011-03-29 | Woongjin Chemical Co., Ltd. | Selective membrane having a high fouling resistance |
US7537697B2 (en) * | 2006-02-01 | 2009-05-26 | 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 |
KR101360751B1 (ko) * | 2006-05-12 | 2014-02-07 | 다우 글로벌 테크놀로지스 엘엘씨 | 개질된 막 |
CN100453153C (zh) * | 2006-08-17 | 2009-01-21 | 贵阳时代汇通膜科技有限公司 | 一种极低压复合反渗透膜的生产方法 |
CN100478056C (zh) * | 2006-08-25 | 2009-04-15 | 贵阳时代汇通膜科技有限公司 | 耐氧化复合反渗透膜 |
KR100905901B1 (ko) * | 2006-09-07 | 2009-07-02 | 웅진코웨이주식회사 | 폴리아미드 역삼투 복합막 활성층 형성용 아민 수용액,이를 이용한 폴리아미드 역삼투 복합막, 및 이의 제조방법 |
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 |
JP2008093544A (ja) * | 2006-10-10 | 2008-04-24 | Nitto Denko Corp | 複合半透膜及びその製造方法 |
JP5130967B2 (ja) * | 2007-03-19 | 2013-01-30 | 東レ株式会社 | 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 |
US7910012B2 (en) * | 2007-07-16 | 2011-03-22 | General Electric Company | Composition, membrane, and associated method |
US20090188861A1 (en) * | 2007-12-13 | 2009-07-30 | Stc. Unm | Preventing and cleaning fouling on reverse osmosis membranes |
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 |
US8147735B2 (en) * | 2008-07-09 | 2012-04-03 | Eltron Research & Development, Inc. | Semipermeable polymers and method for producing same |
JP5696361B2 (ja) * | 2008-10-31 | 2015-04-08 | 東レ株式会社 | 複合半透膜およびその製造方法 |
US7815987B2 (en) * | 2008-12-04 | 2010-10-19 | Dow Global Technologies Inc. | Polyamide membrane with coating of polyalkylene oxide and polyacrylamide compounds |
US20100155325A1 (en) * | 2008-12-24 | 2010-06-24 | General Electric Company | Particle-templated membranes, and related processes for their preparation |
US8580341B2 (en) * | 2009-05-22 | 2013-11-12 | General Electric Company | Method of making composite membrane |
WO2011008549A2 (en) * | 2009-06-29 | 2011-01-20 | NanoH2O Inc. | Improved hybrid tfc ro membranes with nitrogen additives |
JP5633517B2 (ja) * | 2009-09-29 | 2014-12-03 | 栗田工業株式会社 | 透過膜の阻止率向上方法及び透過膜 |
US8721942B2 (en) * | 2010-03-10 | 2014-05-13 | Dow Global Technologies Llc | Composite membrane including coating of polyalkylene oxide and acetophenone compounds |
WO2011136865A1 (en) | 2010-04-26 | 2011-11-03 | Dow Global Technologies Llc | Polyamide membrane with a coating comprising polyalkylene oxide and triazine compounds |
US8757396B2 (en) | 2010-05-24 | 2014-06-24 | Dow Global Technologies Llc | Composite membrane with coating comprising polyalkylene oxide and oxy-substituted phenyl compounds |
US8733558B2 (en) | 2010-05-24 | 2014-05-27 | Dow Global Technologies Llc | Composite membrane with coating comprising polyalkylene oxide and biguanide-type compounds |
CN102917775B (zh) | 2010-05-24 | 2015-11-25 | 陶氏环球技术有限责任公司 | 具有包含聚环氧烷和咪唑化合物的涂层的聚酰胺膜 |
WO2012064939A2 (en) | 2010-11-10 | 2012-05-18 | Nanoh2O, Inc. | Improved hybrid tfc ro membranes with non-metallic additives |
US20120152839A1 (en) * | 2010-12-20 | 2012-06-21 | David Allen Olson | Modified sulfonamide polymeric matrices |
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 |
JP5772083B2 (ja) * | 2011-03-09 | 2015-09-02 | 栗田工業株式会社 | 逆浸透膜の阻止率向上方法、阻止率向上処理剤及び逆浸透膜 |
JP5914973B2 (ja) * | 2011-03-09 | 2016-05-11 | 栗田工業株式会社 | 透過膜の阻止率向上方法及び阻止率向上処理剤 |
JP5929296B2 (ja) * | 2012-02-21 | 2016-06-01 | 栗田工業株式会社 | 逆浸透膜の阻止率向上方法 |
PL2684598T3 (pl) * | 2011-03-09 | 2019-09-30 | Kurita Water Industries Ltd. | Sposób poprawiania współczynnika zatrzymania membrany do odwróconej osmozy oraz zastosowanie środka do obróbki do poprawiania współczynnika zatrzymania membrany do odwróconej osmozy |
KR101440970B1 (ko) * | 2011-05-20 | 2014-09-17 | 주식회사 엘지화학 | 역삼투 분리막의 제조 방법 및 이에 의해 제조된 역삼투 분리막 |
CN102179191A (zh) * | 2011-05-31 | 2011-09-14 | 南京帝膜净水材料开发有限公司 | 一种制造高通量耐氯聚酰胺反渗透复合膜的方法 |
CN102274696A (zh) * | 2011-05-31 | 2011-12-14 | 南京帝膜净水材料开发有限公司 | 一种制造聚酰胺反渗透复合膜的方法 |
CN102284254B (zh) * | 2011-06-10 | 2013-06-19 | 南京帝膜净水材料开发有限公司 | 一种制造耐氯聚酰胺反渗透复合膜的方法 |
WO2013176524A1 (ko) * | 2012-05-24 | 2013-11-28 | 주식회사 엘지화학 | 역삼투 분리막 |
KR101412563B1 (ko) * | 2012-05-24 | 2014-07-02 | 주식회사 엘지화학 | 역삼투 분리막 제조방법 및 이에 의해 제조된 역삼투 분리막 |
CN105188891B (zh) | 2013-03-14 | 2017-11-24 | 陶氏环球技术有限责任公司 | 包括可溶性聚合物涂层的复合聚酰胺膜 |
CN103212312B (zh) * | 2013-04-28 | 2018-03-02 | 中国科学院化学研究所 | 一种非对称耐氧化渗透膜及其制备方法 |
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 |
CN104437106A (zh) * | 2014-11-26 | 2015-03-25 | 北京碧水源膜科技有限公司 | 一种纳滤膜的制备方法 |
US9695065B2 (en) | 2015-06-03 | 2017-07-04 | Lg Nanoh2O, Inc. | Combination of chemical additives for enhancement of water flux of a membrane |
US9731985B2 (en) | 2015-06-03 | 2017-08-15 | Lg Nanoh2O, Inc. | Chemical additives for enhancement of water flux of a membrane |
US9724651B2 (en) | 2015-07-14 | 2017-08-08 | Lg Nanoh2O, Inc. | Chemical additives for water flux enhancement |
US9861940B2 (en) | 2015-08-31 | 2018-01-09 | Lg Baboh2O, Inc. | Additives for salt rejection enhancement of a membrane |
KR101946983B1 (ko) * | 2015-09-08 | 2019-02-12 | 주식회사 엘지화학 | 수처리 분리막의 제조방법, 이를 이용하여 제조된 수처리 분리막, 및 수처리 분리막을 포함하는 수처리 모듈 |
CN105396471A (zh) * | 2015-12-19 | 2016-03-16 | 杭州水处理技术研究开发中心有限公司 | 一种高水通量反渗透膜的制备方法 |
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 |
CN107456871B (zh) * | 2017-08-02 | 2020-10-30 | 同济大学 | 一种中空纤维复合疏松纳滤膜的制备方法 |
AU2019291795B2 (en) | 2018-06-27 | 2023-04-13 | Lubrizol Advanced Materials, Inc. | Flat sheet porous membrane |
WO2020263814A1 (en) | 2019-06-24 | 2020-12-30 | Lubrizol Advanced Materials, Inc. | Hollow fiber membrane |
CN113398781B (zh) * | 2021-06-18 | 2022-07-19 | 中国农业科学院农业质量标准与检测技术研究所 | 一种微孔滤膜材料及其制备方法与应用 |
WO2024129533A1 (en) | 2022-12-14 | 2024-06-20 | The Lubrizol Corporation | Compositions for preparing membranes from polymer solutions |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3744642A (en) * | 1970-12-30 | 1973-07-10 | Westinghouse Electric Corp | Interface condensation desalination membranes |
US4259183A (en) * | 1978-11-07 | 1981-03-31 | Midwest Research Institute | Reverse osmosis membrane |
US4277344A (en) * | 1979-02-22 | 1981-07-07 | Filmtec Corporation | Interfacially synthesized reverse osmosis membrane |
JPS5727102A (en) * | 1980-07-28 | 1982-02-13 | Nitto Electric Ind Co Ltd | Composite semipermeable membrane and its production |
US4606943A (en) * | 1983-03-18 | 1986-08-19 | Culligan International Company | Method for preparation of semipermeable composite membrane |
US4609468A (en) * | 1984-06-01 | 1986-09-02 | Uop Inc. | Increased strength polymer-blended membranes |
US4520044A (en) * | 1984-07-30 | 1985-05-28 | E. I. Du Pont De Nemours And Company | Production of composite membranes |
US4851127A (en) * | 1984-11-23 | 1989-07-25 | Bend Research, Inc. | Novel amine-based presursor compounds and composite membranes thereof |
US4885091A (en) * | 1984-12-26 | 1989-12-05 | Allied-Signal Inc. | Process for the preparation of chlorine-resistant semipermeable membranes |
US4919808A (en) * | 1985-10-21 | 1990-04-24 | Allied-Signal Inc. | Semipermeable membrane compositions |
US4747953A (en) * | 1986-02-21 | 1988-05-31 | Allied Corporation | Composite membranes based on interpenetrating polymer networks |
US4765897A (en) * | 1986-04-28 | 1988-08-23 | The Dow Chemical Company | Polyamide membranes useful for water softening |
US4814082A (en) * | 1986-10-20 | 1989-03-21 | Memtec North America Corporation | Ultrafiltration thin film membranes |
US4830885A (en) * | 1987-06-08 | 1989-05-16 | Allied-Signal Inc. | Chlorine-resistant semipermeable membranes |
US4828700A (en) * | 1987-07-20 | 1989-05-09 | The Dow Chemical Company | Rejection enhancing coatings for reverse osmosis membranes |
US4828708A (en) * | 1987-09-28 | 1989-05-09 | Desalination Systems | Semipermeable membranes |
-
1989
- 1989-12-14 US US07/450,637 patent/US4983291A/en not_active Expired - Lifetime
-
1990
- 1990-06-12 MX MX023614A patent/MX165793B/es unknown
- 1990-11-07 IE IE401490A patent/IE66251B1/en not_active IP Right Cessation
- 1990-11-13 NZ NZ236053A patent/NZ236053A/en unknown
- 1990-11-29 ZA ZA909602A patent/ZA909602B/xx unknown
- 1990-11-30 DK DK91903199.7T patent/DK0505502T3/da active
- 1990-11-30 DE DE91903199T patent/DE69003688T2/de not_active Expired - Fee Related
- 1990-11-30 WO PCT/US1990/007007 patent/WO1991008828A1/en active IP Right Grant
- 1990-11-30 EP EP91903199A patent/EP0505502B1/en not_active Expired - Lifetime
- 1990-11-30 AU AU70721/91A patent/AU639070B2/en not_active Ceased
- 1990-11-30 CA CA002069510A patent/CA2069510C/en not_active Expired - Lifetime
- 1990-11-30 ES ES91903199T patent/ES2044723T3/es not_active Expired - Lifetime
- 1990-12-11 CN CN90109837A patent/CN1030689C/zh not_active Expired - Fee Related
- 1990-12-13 PT PT96189A patent/PT96189A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE69003688D1 (de) | 1993-11-04 |
IE904014A1 (en) | 1991-06-19 |
CA2069510C (en) | 2000-05-23 |
CA2069510A1 (en) | 1991-06-15 |
AU7072191A (en) | 1991-07-18 |
ES2044723T3 (es) | 1994-01-01 |
DK0505502T3 (da) | 1994-03-21 |
PT96189A (pt) | 1991-09-30 |
WO1991008828A1 (en) | 1991-06-27 |
CN1054200A (zh) | 1991-09-04 |
AU639070B2 (en) | 1993-07-15 |
IE66251B1 (en) | 1995-12-27 |
US4983291A (en) | 1991-01-08 |
EP0505502B1 (en) | 1993-09-29 |
ZA909602B (en) | 1991-11-27 |
CN1030689C (zh) | 1996-01-17 |
NZ236053A (en) | 1992-02-25 |
EP0505502A1 (en) | 1992-09-30 |
DE69003688T2 (de) | 1994-01-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MX165793B (es) | Mejoras en membranas semipermeables secas de alto flujo | |
US6162358A (en) | High flux reverse osmosis membrane | |
JP6643624B2 (ja) | 耐溶媒性のポリアミドナノ濾過膜 | |
JP3031763B2 (ja) | 複合逆浸透膜およびその製造方法 | |
US4769148A (en) | Novel polyamide reverse osmosis membranes | |
JP5964292B2 (ja) | 薄膜複合材 | |
US9943809B2 (en) | Solvent resistant thin film composite membrane and its preparation | |
JP2010240651A (ja) | 耐汚れ性に優れた選択的分離膜 | |
CA2135649A1 (en) | Thin-film composite membrane | |
GB1558807A (en) | Semipermeable membranes and the method for the preparationthereof | |
US20180333684A1 (en) | The one-step preparation process for thin film composite membrane using a dual (double layer)-slot coating technique | |
US20210245111A1 (en) | Technique for manufacturing high solute-selective thin film composite membranes using aromatic hydrocarbon solvents | |
US11577971B2 (en) | Composition for forming reverse osmosis membrane protection layer, method for preparing reverse osmosis membrane using same, reverse osmosis membrane, and water treatment module | |
DK0388330T3 (da) | Fremgangsmåde til fremstilling af en semipermeabel membran på et porøst ledende underlag ved hjælp af elektroforese | |
WO2010109490A1 (en) | A method for preparation of enantioselective composite membrane | |
EP3354333A1 (en) | Water treatment membrane and method for manufacturing same | |
IL43201A (en) | Reverse osmosis membrane and its preparation | |
US20230182087A1 (en) | Thin-Film Composite Membranes Synthesized by Multi-Step Coating Methods | |
KR20170126693A (ko) | 역삼투막 및 그 제조방법 | |
ES547303A0 (es) | Procedimiento para la obtencion de una membrana compuesta semipermeable sobre un substrato microporoso, basada en un polimero reticulado. | |
KR100817450B1 (ko) | 순수광학이성질체 제조용 분자각인 고분자 분리막 및 이의제조방법 | |
JPH07171363A (ja) | 複合逆浸透膜 | |
MX170180B (es) | Mejoras en membranas semipermeables resistentes al cloro y proceso para su preparacion | |
JPS6418406A (en) | Permselective hollow yarn composite membrane and production thereof | |
KR20180040962A (ko) | 역삼투막 제조용 조성물, 이를 이용한 역삼투막 제조방법, 역삼투막 및 수처리 모듈 |