DE1949847A1 - Neue semipermeable Membranen - Google Patents

Neue semipermeable Membranen

Info

Publication number
DE1949847A1
DE1949847A1 DE19691949847 DE1949847A DE1949847A1 DE 1949847 A1 DE1949847 A1 DE 1949847A1 DE 19691949847 DE19691949847 DE 19691949847 DE 1949847 A DE1949847 A DE 1949847A DE 1949847 A1 DE1949847 A1 DE 1949847A1
Authority
DE
Germany
Prior art keywords
acid
solution
membranes
radical
membrane
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Withdrawn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
DE19691949847
Other languages
German (de)
English (en)
Inventor
Andre Rio
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
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 Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of DE1949847A1 publication Critical patent/DE1949847A1/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Withdrawn legal-status Critical Current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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
DE19691949847 1968-10-02 1969-10-02 Neue semipermeable Membranen Withdrawn DE1949847A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR168446 1968-10-02

Publications (1)

Publication Number Publication Date
DE1949847A1 true DE1949847A1 (de) 1970-04-09

Family

ID=8655196

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691949847 Withdrawn DE1949847A1 (de) 1968-10-02 1969-10-02 Neue semipermeable Membranen

Country Status (11)

Country Link
US (1) US3686116A (enExample)
BE (1) BE739700A (enExample)
BR (1) BR6912815D0 (enExample)
CH (1) CH511916A (enExample)
DE (1) DE1949847A1 (enExample)
ES (1) ES372085A1 (enExample)
FR (1) FR1587787A (enExample)
GB (1) GB1227280A (enExample)
IL (1) IL33093A (enExample)
LU (1) LU59552A1 (enExample)
NL (1) NL6914496A (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2336870A1 (de) * 1972-07-20 1974-01-31 Du Pont Semipermeable membran und verfahren zur herstellung derselben
DE2425563A1 (de) * 1973-05-28 1974-12-05 Toray Industries Dauerselektive membran
FR2300606A1 (fr) * 1975-02-15 1976-09-10 Asahi Chemical Ind Fibre creuse a paroi filtrante
DE2704600A1 (de) * 1977-02-04 1978-08-17 Hoechst Ag Permselektive, asymmetrische membran mit heteroporoeser struktur auf basis von polyamid
WO1990008807A1 (en) * 1989-01-31 1990-08-09 E.I. Du Pont De Nemours And Company Porous substrates with a high concentration of amine groups

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193634A1 (en) * 1972-07-20 1974-02-22 Du Pont Polyimide semi-permeable membranes
US3951789A (en) * 1973-10-11 1976-04-20 Allied Chemical Corporation Novel high diffusivity membranes
DE2418996A1 (de) * 1974-04-19 1975-10-30 Bayer Ag Asymmetrische, semipermeable membranen aus polybenz-1,3-oxazindionen-2,4
DE2602493A1 (de) * 1975-01-27 1976-07-29 Ramot Plastics Verfahren zur entfernung von harnstoff aus waessrigen loesungen
GB1586167A (en) * 1976-09-24 1981-03-18 Bfg Glassgroup Moulding solid layers
JPS5443882A (en) * 1977-09-14 1979-04-06 Nippon Zeon Co Ltd Preparation of semipermeable membrane
US5352273A (en) * 1993-04-14 1994-10-04 E. I. Du Pont De Nemours And Company Alkyl substituted aromatic polyester gas separation membranes
CN102574071B (zh) 2009-08-24 2015-08-19 Oasys水有限公司 正向渗透膜
US9156006B2 (en) 2009-12-03 2015-10-13 Yale University High flux thin-film composite forward osmosis and pressure-retarded osmosis membranes
KR20130101533A (ko) 2010-10-04 2013-09-13 오아시스 워터, 인크. 박막 필름 복합 열 교환기
US8968828B2 (en) 2011-01-24 2015-03-03 Dow Global Technologies Llc Composite polyamide membrane
CN103764264B (zh) 2011-08-31 2016-11-16 陶氏环球技术有限责任公司 源自包含胺反应性官能团和含磷官能团的单体的复合聚酰胺膜
WO2013048764A1 (en) 2011-09-29 2013-04-04 Dow Global Technologies Llc Method for preparing high purity mono-hydrolyzed acyl halide compound
CN104039429B (zh) 2012-01-06 2016-05-04 陶氏环球技术有限责任公司 复合聚酰胺膜
CN104470628A (zh) 2012-07-19 2015-03-25 陶氏环球技术有限责任公司 源自于四官能酰卤单体的薄膜复合膜
WO2014109946A1 (en) 2013-01-14 2014-07-17 Dow Global Technologies Llc Composite polyamide membrane
US9895666B2 (en) 2013-01-14 2018-02-20 Dow Global Technologies Llc Composite polyamide membrane made using substituted benzamide monomer
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
CN105163837B (zh) 2013-05-03 2017-05-10 陶氏环球技术有限责任公司 衍生自脂肪族非环状叔胺化合物的复合聚酰胺膜
EP3077088B1 (en) 2013-12-02 2017-12-27 Dow Global Technologies LLC Method for forming a composite polyamide membrane post treated with nitrious acid
EP3077089B1 (en) 2013-12-02 2018-02-28 Dow Global Technologies LLC Method of forming a composite polyamide membrane treated with dihyroxyaryl compounds and nitrous acid
EP3092062B1 (en) 2014-01-09 2018-05-30 Dow Global Technologies LLC Composite polyamide membrane having preferred azo content
WO2015105637A1 (en) 2014-01-09 2015-07-16 Dow Global Technologies Llc Composite polyamide membrane having high acid content and low azo content
EP3092060B1 (en) 2014-01-09 2018-07-25 Dow Global Technologies LLC Composite polyamide membrane having azo content and high acid content
WO2015167759A1 (en) 2014-04-28 2015-11-05 Dow Global Technologies Llc Composite polyamide membrane post-treated with nitrous acid
WO2015175258A1 (en) 2014-05-14 2015-11-19 Dow Global Technologies Llc Composite polyamide membrane post-treated with nitrous acid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2336870A1 (de) * 1972-07-20 1974-01-31 Du Pont Semipermeable membran und verfahren zur herstellung derselben
DE2425563A1 (de) * 1973-05-28 1974-12-05 Toray Industries Dauerselektive membran
FR2300606A1 (fr) * 1975-02-15 1976-09-10 Asahi Chemical Ind Fibre creuse a paroi filtrante
DE2704600A1 (de) * 1977-02-04 1978-08-17 Hoechst Ag Permselektive, asymmetrische membran mit heteroporoeser struktur auf basis von polyamid
WO1990008807A1 (en) * 1989-01-31 1990-08-09 E.I. Du Pont De Nemours And Company Porous substrates with a high concentration of amine groups
US5164475A (en) * 1989-01-31 1992-11-17 Du Pont Merck Pharmaceutical Company Porous substrates with a high concentration of amine groups

Also Published As

Publication number Publication date
BE739700A (enExample) 1970-04-01
US3686116A (en) 1972-08-22
LU59552A1 (enExample) 1970-04-01
FR1587787A (enExample) 1970-03-27
NL6914496A (enExample) 1970-04-06
BR6912815D0 (pt) 1973-01-09
ES372085A1 (es) 1971-09-01
IL33093A0 (en) 1969-11-30
IL33093A (en) 1972-09-28
GB1227280A (enExample) 1971-04-07
CH511916A (fr) 1971-08-31

Similar Documents

Publication Publication Date Title
DE1949847A1 (de) Neue semipermeable Membranen
DE2849978C3 (de) Selektivdurchlässige Membran und Verfahren zu deren Herstellung
DE2337121C3 (de) Mikroporöse, undurchsichtige, unlösliche, asymmetrische Membran und Verfahren zur Herstellung derselben
DE3112937C2 (de) Verfahren zur Herstellung einer selektiv durchlässigen Polyimidmembran
DE60212670T2 (de) Verbundmembranen für nanofiltration und umkehrosmose sowie verfahren zu ihrer herstellung
DE68910067T2 (de) Aminhaltige, grenzflächensynthetisierte Umkehrosmose-Membran und Verfahren zu ihrer Herstellung.
DE3018540C2 (de) Verfahren zur herstellung von selektiv durchlaessigen membranen
DE69702747T2 (de) Methode zur behandlung von poyamidmembranen um den fluss zu erhöhen
DE2642979C2 (de) Semipermeable Membranen aus Polyamiden
DE69620720T2 (de) Halbdurchlässige, zusammengesetzte Membran, Verfahren zur Herstellung einer derartigen Membran, und ihre Verwendung
DE2531159A1 (de) Semipermeable polymere membran und verfahren zu ihrer herstellung
DE2735443B2 (de) Verfahren zur Herstellung von asymmetrischen Membranen
DE2457355A1 (de) Membranen
DE1720054B2 (de) CeUuIoseacetatpolymer-Umkehrosmosemembran und Verfahren zu deren Herstellung
DE1950594C3 (de) Semipermeable Membranen aus Polyamiden oder Copoly amiden
DE2243953A1 (de) Membran fuer eine vorrichtung zur ultrafiltration
DE2300496C3 (de) Asymmetrische Umkehr-Osmosemembranen auf Cellulosebasis
DE2825247C3 (de) Permselektive zusammengesetzte Membran, Verfahren zu deren Herstellung und Polymerlösung zur Durchführung des Verfahrens
DE2554922A1 (de) Semipermeable membranen aus copolyamiden
DE2536492A1 (de) Semipermeable membranen aus sulfonierten polybenz-1,3-oxazindionen- (2,4)
DE1720050B2 (de) Verfahren zur herstellung von celluloseacetatmembranen fuer umgekehrte osmose
DE2554932A1 (de) Semipermeable membranen aus copolyamiden
DE1570163A1 (de) Verfahren zur Herstellung einer semipermeablen Membran,insbesondere zum Entsalzen von Wasser
DE2850043A1 (de) Verfahren zur herstellung von selbsttragenden selektivdurchlaessigen membranen
DE1949847C (de) Semipermeable Membran

Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee