DE2251348A1 - Osmoseverfahren und dafuer geeignete membran - Google Patents

Osmoseverfahren und dafuer geeignete membran

Info

Publication number
DE2251348A1
DE2251348A1 DE2251348A DE2251348A DE2251348A1 DE 2251348 A1 DE2251348 A1 DE 2251348A1 DE 2251348 A DE2251348 A DE 2251348A DE 2251348 A DE2251348 A DE 2251348A DE 2251348 A1 DE2251348 A1 DE 2251348A1
Authority
DE
Germany
Prior art keywords
groups
membrane
crosslinking agent
flow
crosslinking
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.)
Withdrawn
Application number
DE2251348A
Other languages
German (de)
English (en)
Inventor
Jun William Leonard Hofferbert
Jun Ray Mckinney
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.)
United States Department of the Interior
Original Assignee
United States Department of the Interior
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 United States Department of the Interior filed Critical United States Department of the Interior
Publication of DE2251348A1 publication Critical patent/DE2251348A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/60—Polyamides or polyester-amides
    • C08G18/603—Polyamides

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)
DE2251348A 1971-10-19 1972-10-19 Osmoseverfahren und dafuer geeignete membran Withdrawn DE2251348A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191818A US3904519A (en) 1971-10-19 1971-10-19 Reverse osmosis process using crosslinked aromatic polyamide membranes

Publications (1)

Publication Number Publication Date
DE2251348A1 true DE2251348A1 (de) 1973-04-26

Family

ID=22707053

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2251348A Withdrawn DE2251348A1 (de) 1971-10-19 1972-10-19 Osmoseverfahren und dafuer geeignete membran

Country Status (7)

Country Link
US (1) US3904519A (enExample)
AU (1) AU473950B2 (enExample)
CA (1) CA966067A (enExample)
DE (1) DE2251348A1 (enExample)
FR (1) FR2156839B1 (enExample)
GB (1) GB1390418A (enExample)
IL (1) IL40449A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638065A1 (de) * 1975-08-25 1977-03-03 Sumitomo Chemical Co Verfahren zur herstellung von semipermeablen membranen
FR2527469A1 (fr) * 1982-05-29 1983-12-02 Seitz Filter Werke Filtre a membrane pour la microfiltration et procede pour sa fabrication

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543367B2 (enExample) * 1975-01-08 1980-11-06
DE2554932A1 (de) * 1975-12-06 1977-06-08 Bayer Ag Semipermeable membranen aus copolyamiden
NZ184767A (en) * 1976-08-05 1980-03-05 Tecneco Spa Assymetric membranes from fluorinated polymeric materials
US4087388A (en) * 1976-10-21 1978-05-02 E. I. Du Pont De Nemours And Company Process of preparing a permselective membrane
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
DE2940447C2 (de) * 1979-10-05 1982-03-18 Forschungsinstitut Berghof GmbH, 7400 Tübingen Integralasymmetrische Ultrafiltrationsmembran
JPS5824304A (ja) * 1981-08-07 1983-02-14 Toray Ind Inc 高性能半透性複合膜
JPS58152498A (ja) * 1982-03-06 1983-09-10 Terumo Corp 低分子ペプチド混合物の製造方法
AU571194B2 (en) * 1983-02-02 1988-04-14 Memtec Limited Cross linked porous membranes
JPS60500406A (ja) * 1983-02-02 1985-03-28 メムテツク　リミテツド 架橋した多孔質膜
US4606943A (en) * 1983-03-18 1986-08-19 Culligan International Company Method for preparation of semipermeable composite membrane
US4613625A (en) * 1983-10-18 1986-09-23 Memtec Limited Substituted aliphatic polyamide porous membranes
US4659475A (en) * 1984-03-19 1987-04-21 Midwest Research Institute Composite reverse osmosis membrane comprising crosslinked poly(amine-epihalohydrin adduct)
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
US4919808A (en) * 1985-10-21 1990-04-24 Allied-Signal Inc. Semipermeable membrane compositions
US5069945A (en) * 1986-10-20 1991-12-03 Memtec America Corporation Ultrapous thin-film membranes
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
US4769148A (en) * 1987-11-18 1988-09-06 The Dow Chemical Company Novel polyamide reverse osmosis membranes
US4859384A (en) * 1987-11-18 1989-08-22 Filmtec Corp. Novel polyamide reverse osmosis membranes
US4792404A (en) * 1988-03-28 1988-12-20 Allied-Signal Inc. Desalination of saline water
US5254261A (en) * 1991-08-12 1993-10-19 Hydranautics Interfacially synthesized reverse osmosis membranes and processes for preparing the same
US5271843A (en) * 1991-09-09 1993-12-21 Allied-Signal Inc. Chlorine-tolerant, thin-film composite membrane
US5246587A (en) * 1991-12-23 1993-09-21 Hydranautics Interfacially synthesized reverse osmosis membranes and processes for preparing the same
KR0118208B1 (ko) * 1992-07-20 1997-09-30 하기주 방향족 폴리아미드 및 그의 제조방법
KR0183370B1 (ko) * 1995-07-07 1999-04-15 김은영 방향족 폴리에스테르 또는 방향족 폴리에스테르와 폴리아미드 공중합체의 활성층을 갖는 역삼투용 복합막
US5922203A (en) * 1997-10-07 1999-07-13 Hydranautics Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
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
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
WO2001023077A1 (fr) * 1999-09-28 2001-04-05 Toray Industries, Inc. Procede de production de membrane composite semipermeable
US6881209B2 (en) * 2000-05-25 2005-04-19 Cook Incorporated Medical device including unitary, continuous portion of varying durometer
WO2004091471A2 (en) * 2003-04-04 2004-10-28 Berger, Constance, F. Apparatus for heating bottles and method of manufacturing same
CN101511938B (zh) * 2006-09-09 2012-10-10 帝人芳纶有限公司 可交联的芳族聚酰胺共聚物
WO2008100957A1 (en) * 2007-02-14 2008-08-21 Dxv Water Technologies, Llc Depth exposed membrane for water extraction
US7910012B2 (en) * 2007-07-16 2011-03-22 General Electric Company Composition, membrane, and associated method
US8177978B2 (en) * 2008-04-15 2012-05-15 Nanoh20, Inc. Reverse osmosis membranes
JP5745512B2 (ja) 2009-06-29 2015-07-08 ナノエイチツーオー・インコーポレーテッド 窒素添加剤を含む改良された混成ｔｆｃｒｏ膜
WO2011097403A1 (en) 2010-02-04 2011-08-11 Dxv Water Technologies, Llc Water treatment systems and methods
JP5968328B2 (ja) 2010-11-10 2016-08-10 ナノエイチツーオー・インコーポレーテッド 非金属添加剤を含む改良された混成ｔｆｃｒｏ膜
EP2659956A4 (en) * 2010-12-28 2017-04-12 Toray Industries, Inc. Composite semipermeable membrane
CN102512982B (zh) * 2012-01-11 2013-11-13 浙江理工大学 一种抗菌耐氧化复合反渗透膜
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
US10513446B2 (en) 2014-10-10 2019-12-24 EcoDesal, LLC Depth exposed membrane for water extraction
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
WO2018049013A1 (en) * 2016-09-07 2018-03-15 Oasys Water, Inc. Membranes with alternative selective layers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140256A (en) * 1957-09-30 1964-07-07 Standard Oil Co Separation process
US3276996A (en) * 1963-07-15 1966-10-04 Lazare Leon Separating water from saline solutions
US3423491A (en) * 1964-09-02 1969-01-21 Dow Chemical Co Permselective hollow fibers and method of making
US3497451A (en) * 1967-10-11 1970-02-24 Du Pont Permeation separation with type-8 nylon membranes
US3524546A (en) * 1967-10-11 1970-08-18 Du Pont Permeation separation with acidgrafted nylon membranes
US3531525A (en) * 1968-03-18 1970-09-29 Lubrizol Corp Preparation of n-3-hydroxyalkyl acrylamides by hydrolysis of vinyl oxazines
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3554379A (en) * 1969-06-10 1971-01-12 Du Pont Desalination apparatus and process of manufacture using improved, nitrogenous membranes
BE746629A (fr) * 1970-02-27 1970-07-31 Consiglio Nazionale Ricerche Procede pour la formation de membranes semi-permeables pour dessalementd'eaux saumatres et marines, par hyperfiltration, et membranes produites par le susdit procede

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638065A1 (de) * 1975-08-25 1977-03-03 Sumitomo Chemical Co Verfahren zur herstellung von semipermeablen membranen
FR2527469A1 (fr) * 1982-05-29 1983-12-02 Seitz Filter Werke Filtre a membrane pour la microfiltration et procede pour sa fabrication

Also Published As

Publication number Publication date
AU4756972A (en) 1974-04-26
IL40449A (en) 1976-01-30
GB1390418A (en) 1975-04-09
US3904519A (en) 1975-09-09
FR2156839B1 (enExample) 1979-04-13
FR2156839A1 (enExample) 1973-06-01
IL40449A0 (en) 1972-11-28
AU473950B2 (en) 1974-04-26
CA966067A (en) 1975-04-15

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Legal Events

Date Code Title Description
OD Request for examination
8136 Disposal/non-payment of the fee for publication/grant