DE3782119D1 - Asymmetrische gastrennungsmembranen mit modifizierter durchlaessigkeit, deren haut einen dichtegradienten aufweist. - Google Patents

Asymmetrische gastrennungsmembranen mit modifizierter durchlaessigkeit, deren haut einen dichtegradienten aufweist.

Info

Publication number
DE3782119D1
DE3782119D1 DE8787870112T DE3782119T DE3782119D1 DE 3782119 D1 DE3782119 D1 DE 3782119D1 DE 8787870112 T DE8787870112 T DE 8787870112T DE 3782119 T DE3782119 T DE 3782119T DE 3782119 D1 DE3782119 D1 DE 3782119D1
Authority
DE
Germany
Prior art keywords
radient
persistency
skin
density
modified
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
DE8787870112T
Other languages
English (en)
Other versions
DE3782119T2 (de
Inventor
Milton Keith Murphy
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.)
Permea Inc
Original Assignee
Permea Inc
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 Permea Inc filed Critical Permea Inc
Publication of DE3782119D1 publication Critical patent/DE3782119D1/de
Application granted granted Critical
Publication of DE3782119T2 publication Critical patent/DE3782119T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

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)
DE8787870112T 1986-08-15 1987-08-12 Asymmetrische gastrennungsmembranen mit modifizierter durchlaessigkeit, deren haut einen dichtegradienten aufweist. Expired - Fee Related DE3782119T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/897,162 US4728346A (en) 1986-08-15 1986-08-15 Permeation modified asymmetric gas separation membranes having graded density skins

Publications (2)

Publication Number Publication Date
DE3782119D1 true DE3782119D1 (de) 1992-11-12
DE3782119T2 DE3782119T2 (de) 1993-02-18

Family

ID=25407430

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787870112T Expired - Fee Related DE3782119T2 (de) 1986-08-15 1987-08-12 Asymmetrische gastrennungsmembranen mit modifizierter durchlaessigkeit, deren haut einen dichtegradienten aufweist.

Country Status (6)

Country Link
US (1) US4728346A (de)
EP (1) EP0257011B1 (de)
JP (1) JPS6351921A (de)
DE (1) DE3782119T2 (de)
ES (1) ES2052604T3 (de)
GR (1) GR3006240T3 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707054A1 (de) * 1987-03-05 1988-09-15 Akzo Gmbh Verfahren zum herstellen einer zweischichtmembran
JPH02501988A (ja) * 1987-11-06 1990-07-05 ザ　ダウ　ケミカル　カンパニー 内部弁別区域をもつ半透膜
US4838904A (en) * 1987-12-07 1989-06-13 The Dow Chemical Company Semi-permeable membranes with an internal discriminating region
US4783201A (en) * 1987-12-28 1988-11-08 Rice Arthur W Gas dehydration membrane apparatus
US4793830A (en) * 1987-12-28 1988-12-27 Murphy Milton K Process for producing high quality gas for instrumentation application using gas separation membranes
US4863496A (en) * 1988-04-13 1989-09-05 E. I. Du Pont De Nemours And Co. Reactive posttreatment for gas separation membranes
US4859215A (en) * 1988-05-02 1989-08-22 Air Products And Chemicals, Inc. Polymeric membrane for gas separation
US4902422A (en) * 1988-12-06 1990-02-20 Board Regents The University Of Texas System Defect-free ultrahigh flux asymmetric membranes
US4959082A (en) * 1989-07-20 1990-09-25 The Dow Chemical Company Polycarbonate gas separation membranes containing substituted benzenes and processes for making and using the same
US5032149A (en) * 1989-10-10 1991-07-16 E. I. Du Pont De Nemours And Company Surfactant treatment of polyaramide gas separation membranes
US5034024A (en) * 1989-10-10 1991-07-23 E. I. Du Pont De Nemours And Company Surfactant treatment of aromatic polyimide gas separation membranes
US5009678A (en) * 1989-10-31 1991-04-23 Union Carbide Industrial Gases Technology Corporation Process for recovery of ammonia from an ammonia-containing gas mixture
US5131927A (en) * 1991-04-22 1992-07-21 Union Carbide Industrial Gases Technology Corporation Reactive treatment of composite gas separation membranes
WO1992022376A1 (en) * 1991-06-12 1992-12-23 Permea, Inc. Membranes having enhanced selectivity and method of producing such membranes
US5215554A (en) * 1991-06-12 1993-06-01 Permea, Inc. Membranes having enhanced selectivity and method of producing such membranes
US5240480A (en) * 1992-09-15 1993-08-31 Air Products And Chemicals, Inc. Composite mixed conductor membranes for producing oxygen
US5286280A (en) * 1992-12-31 1994-02-15 Hoechst Celanese Corporation Composite gas separation membrane having a gutter layer comprising a crosslinked polar phenyl-containing - organopolysiloxane, and method for making the same -
US5512376A (en) * 1994-06-20 1996-04-30 Hercules Incorporated Nonpolar polymers comprising antiplasticizers
US6156381A (en) * 1998-12-30 2000-12-05 Mg Generon Ozone treatment of surface of membrane to improve permselectivity
US6688477B2 (en) 2001-05-03 2004-02-10 Air Products And Chemicals, Inc. Composite membranes
US9908079B2 (en) * 2015-01-27 2018-03-06 Dow Global Technologies Llc Separation of hydrocarbons using regenerable macroporous alkylene-bridged adsorbent
US10262864B2 (en) 2016-12-30 2019-04-16 Sunpower Corporation Point-of-use enrichment of gas mixtures for semiconductor structure fabrication and systems for providing point-of-use enrichment of gas mixtures
US20200391162A1 (en) * 2018-02-20 2020-12-17 Georgia Tech Research Corporation Molecularly-mixed composite membranes and methods for making the same

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615024A (en) * 1968-08-26 1971-10-26 Amicon Corp High flow membrane
US3551331A (en) * 1969-09-22 1970-12-29 Du Pont Reverse osmosis separations using a treated polyamide membrane
US3709774A (en) * 1970-05-13 1973-01-09 Gen Electric Preparation of asymmetric polymer membranes
US3752784A (en) * 1970-12-23 1973-08-14 Du Pont Process for preparing microporous opencelled cellular polymeric structures
US3792135A (en) * 1972-01-06 1974-02-12 Eastman Kodak Co Process for manufacturing cellulosic reverse osmosis membranes using a very high temperature initial aqueous quench
GB1417396A (en) * 1972-01-12 1975-12-10 Ici Ltd Asymmetric membranous articles and methods for their manufacture
US3917777A (en) * 1972-12-13 1975-11-04 Kobe Steel Ltd Process for the preparation of dry semipermeable
JPS5331105B2 (de) * 1973-03-27 1978-08-31
JPS518179A (en) * 1974-07-11 1976-01-22 Daicel Ltd Sentakutokaseikobunshimakuoyobisono seizoho
US3980456A (en) * 1975-03-31 1976-09-14 General Electric Company Method for sealing breaches in multi-layer ultrathin membrane composites
US4230463A (en) * 1977-09-13 1980-10-28 Monsanto Company Multicomponent membranes for gas separations
US4157960A (en) * 1977-11-30 1979-06-12 Monsanto Company Method for enhancing membrane separation
JPS54145379A (en) * 1978-05-02 1979-11-13 Asahi Chem Ind Co Ltd Aromatic polysulfone hollow fiber semipermeable membrane
US4364759A (en) * 1979-03-28 1982-12-21 Monsanto Company Methods for preparing anisotropic hollow fiber membranes comprising polymer of acrylonitrile and styrene and hollow fiber membranes produced therefrom
IL59581A0 (en) * 1979-03-28 1980-06-30 Monsanto Co Methods for preparing anisotropic membranes and membranes prepared therefrom
US4629563B1 (en) * 1980-03-14 1997-06-03 Memtec North America Asymmetric membranes
DE3028213C2 (de) * 1980-07-25 1990-12-06 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung einer Ultrafiltrationsmembran aus Polyamid und daraus hergestellte Membran
JPS5824305A (ja) * 1981-07-31 1983-02-14 Daicel Chem Ind Ltd ポリスルホン樹脂半透膜の製造法
JPS59189903A (ja) * 1983-04-09 1984-10-27 Kanegafuchi Chem Ind Co Ltd 中空糸状フイルタ−およびその製法
US4544484A (en) * 1983-06-24 1985-10-01 E. I. Du Pont De Nemours And Company Reverse osmosis membrane quenching
EP0131559B1 (de) * 1983-06-30 1987-12-02 Monsanto Company Membranen auf der Basis von amorphen Polyaryläthern,welche an die Arylgruppen substituiert sind
US4575385A (en) * 1983-06-30 1986-03-11 Monsanto Company Permeation modified gas separation membranes
US4472175A (en) * 1983-06-30 1984-09-18 Monsanto Company Asymmetric gas separation membranes
US4568579A (en) * 1983-11-03 1986-02-04 Owens-Illinois, Inc. Asymmetrical layered structures of polyalkylene sulfone resins
US4527999A (en) * 1984-03-23 1985-07-09 Abcor, Inc. Separation membrane and method of preparing and using same
DE3420373C2 (de) * 1984-06-01 1986-09-18 Gkss - Forschungszentrum Geesthacht Gmbh, 2054 Geesthacht Verfahren zur Herstellung einer integralasymmetrischen Membran zur Trennung von Gasen

Also Published As

Publication number Publication date
EP0257011B1 (de) 1992-10-07
US4728346A (en) 1988-03-01
GR3006240T3 (de) 1993-06-21
EP0257011A3 (en) 1989-03-15
DE3782119T2 (de) 1993-02-18
ES2052604T3 (es) 1994-07-16
JPS6351921A (ja) 1988-03-05
EP0257011A2 (de) 1988-02-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee