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Withdrawn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Withdrawn legal-status Critical Current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DE19691949847 1968-10-02 1969-10-02 Neue semipermeable Membranen Withdrawn DE1949847A1 (de)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DE19691949847 Withdrawn DE1949847A1 (de) 1968-10-02 1969-10-02 Neue semipermeable Membranen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
US9186627B2 (en) 2009-08-24 2015-11-17 Oasys Water, Inc. Thin film composite heat exchangers
US8181794B2 (en) 2009-08-24 2012-05-22 Oasys Water, Inc. Forward osmosis membranes
WO2011069050A1 (en) 2009-12-03 2011-06-09 Yale University High flux thin-film composite forward osmosis and pressure-retarded osmosis membranes
KR101920194B1 (ko) 2011-01-24 2019-02-08 다우 글로벌 테크놀로지스 엘엘씨 복합 폴리아미드 막
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
EP2776146B1 (en) 2012-01-06 2020-05-13 DDP Specialty Electronic Materials US, Inc. Method of preparation of a composite polyamide membrane
US9610542B2 (en) 2012-07-19 2017-04-04 Dow Global Technologies Llc Composite polyamide membrane with increased carboxylic acid functionality
US9895666B2 (en) 2013-01-14 2018-02-20 Dow Global Technologies Llc Composite polyamide membrane made using substituted benzamide monomer
CN104918687A (zh) 2013-01-14 2015-09-16 陶氏环球技术有限责任公司 使用非极性溶剂的掺合物经由界面聚合制造复合聚酰胺膜
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
CN105873665B (zh) 2013-12-02 2019-01-01 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
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
ES2677994T3 (es) 2014-01-09 2018-08-08 Dow Global Technologies Llc Membrana de poliamida de material compuesto con contenido azoico preferido
KR102273550B1 (ko) 2014-01-09 2021-07-07 다우 글로벌 테크놀로지스 엘엘씨 아조 함량 및 높은 산 함량을 갖는 복합 폴리아미드 막
KR102289354B1 (ko) 2014-01-09 2021-08-12 다우 글로벌 테크놀로지스 엘엘씨 높은 산 함량 및 낮은 아조 함량을 갖는 복합 폴리아미드 막
KR102343738B1 (ko) 2014-04-28 2021-12-27 다우 글로벌 테크놀로지스 엘엘씨 아질산으로 후처리된 복합체 폴리아미드막
US9943810B2 (en) 2014-05-14 2018-04-17 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
IL33093A0 (en) 1969-11-30
IL33093A (en) 1972-09-28
FR1587787A (enExample) 1970-03-27
ES372085A1 (es) 1971-09-01
US3686116A (en) 1972-08-22
LU59552A1 (enExample) 1970-04-01
CH511916A (fr) 1971-08-31
NL6914496A (enExample) 1970-04-06
GB1227280A (enExample) 1971-04-07
BR6912815D0 (pt) 1973-01-09

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Legal Events

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