FR2419742A1 - Procede pour ameliorer les performances de membranes semipermeables - Google Patents

Procede pour ameliorer les performances de membranes semipermeables

Info

Publication number
FR2419742A1
FR2419742A1 FR7906456A FR7906456A FR2419742A1 FR 2419742 A1 FR2419742 A1 FR 2419742A1 FR 7906456 A FR7906456 A FR 7906456A FR 7906456 A FR7906456 A FR 7906456A FR 2419742 A1 FR2419742 A1 FR 2419742A1
Authority
FR
France
Prior art keywords
membranes
performances
improving
semipermeable membranes
acrylonitrile
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.)
Granted
Application number
FR7906456A
Other languages
English (en)
Other versions
FR2419742B1 (fr
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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
Priority claimed from JP3157178A external-priority patent/JPS54123583A/ja
Priority claimed from JP3860878A external-priority patent/JPS5857961B2/ja
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of FR2419742A1 publication Critical patent/FR2419742A1/fr
Application granted granted Critical
Publication of FR2419742B1 publication Critical patent/FR2419742B1/fr
Expired 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
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
    • 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
    • B01D67/009—After-treatment of organic or inorganic membranes with wave-energy, particle-radiation or plasma

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Ce procédé améliore les performances de membranes semi-perméables faites d'un polymère d'acrylonitrile, qui contient 40 a 100 % en moles d'acrylonitrile et a un point de bulle supérieur à 0,1 kg/cm**2. On immerge ces membranes dans une solution aqueuse contenant des sels inorganiques et/ou des acides protiques. Ces membranes sont utilisees pour l'osmose inverse, l'ultrafiltration ou similaires. Ledit procédé augmente leur perméabilité à l'eau sans nuire à leur capacité de rejet des produits dissous.
FR7906456A 1978-03-17 1979-03-14 Procede pour ameliorer les performances de membranes semipermeables Expired FR2419742B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3157178A JPS54123583A (en) 1978-03-17 1978-03-17 Treating method for semipermeable membrane
JP3860878A JPS5857961B2 (ja) 1978-03-31 1978-03-31 半透膜の処理方法

Publications (2)

Publication Number Publication Date
FR2419742A1 true FR2419742A1 (fr) 1979-10-12
FR2419742B1 FR2419742B1 (fr) 1986-04-04

Family

ID=26370057

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906456A Expired FR2419742B1 (fr) 1978-03-17 1979-03-14 Procede pour ameliorer les performances de membranes semipermeables

Country Status (7)

Country Link
US (1) US4268662A (fr)
DE (1) DE2910413A1 (fr)
DK (1) DK110279A (fr)
FR (1) FR2419742B1 (fr)
GB (1) GB2016301B (fr)
IT (1) IT1114744B (fr)
NL (1) NL7902024A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5581706A (en) * 1978-12-15 1980-06-20 Sumitomo Chem Co Ltd Preparation of semi-permeable membrane
EP0025973B1 (fr) * 1979-09-19 1985-01-23 Aligena Ag Membrane poreuse à base de polyacrylonitriles modifiée par des groupes amidoximes, procédé pour sa fabrication et son utilisation
US4511711A (en) * 1982-02-10 1985-04-16 Sumitomo Chemical Company, Limited Process for producing semipermeable membrane
DE3515184A1 (de) * 1985-04-26 1986-11-06 Hartmut Ernst Artur Dr. 6907 Nußloch Brüschke Verfahren zur herstellung von loesungs-diffusionsmembranen und ihre verwendung fuer die pervaporation
DE3704546A1 (de) * 1987-02-13 1988-08-25 Kernforschungsz Karlsruhe Verfahren zur herstellung eines filters und danach hergestelltes filter
WO1989005182A1 (fr) * 1987-12-02 1989-06-15 Japan Represented By Ministry Of International Tra Membrane hydrolysee et procede de production
US4943618A (en) * 1987-12-18 1990-07-24 Kingston Technologies Limited Partnership Method for preparing polyacrylonitrile copolymers by heterogeneous reaction of polyacrylonitrile aquagel
KR100477587B1 (ko) * 1998-11-09 2005-07-18 주식회사 새 한 폴리아미드계 복합소재 분리막 제조방법
CN102512999B (zh) * 2006-04-11 2015-01-07 麻省理工学院 用聚丙烯腈接枝共聚物形成的抗污垢膜
EP2168614B1 (fr) * 2008-09-25 2012-02-15 Gambro Lundia AB Rein bio-artificiel hybride

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150917A (en) * 1962-04-23 1964-09-29 Gagliardi Domenick Donald Treatment of polyolefin articles and resulting products
US3402136A (en) * 1964-07-01 1968-09-17 Japanese Geon Co Ltd Introduction of polar groups into unsaturated polymers of dienes
US3551394A (en) * 1966-07-26 1970-12-29 Nippon Zeon Co Manufacture of high molecular weight substances
US3565876A (en) * 1968-02-28 1971-02-23 Standard Oil Co Ohio Oriented methacrylonitrile polymer articles
US3615024A (en) * 1968-08-26 1971-10-26 Amicon Corp High flow membrane
US3948870A (en) * 1973-09-17 1976-04-06 Ceskoslovenska Akademie Ved Method of preparing hydrophilic copolymers of acrylonitrile
CS182467B1 (en) * 1975-06-05 1978-04-28 Jiri Hradil Method of preparing cationic ion exchanger
JPS5226380A (en) * 1975-08-25 1977-02-26 Sumitomo Chem Co Ltd Method of making semipermeable membranes

Also Published As

Publication number Publication date
US4268662A (en) 1981-05-19
DK110279A (da) 1979-09-18
IT7948386A0 (it) 1979-03-16
FR2419742B1 (fr) 1986-04-04
GB2016301B (en) 1983-01-12
GB2016301A (en) 1979-09-26
DE2910413A1 (de) 1979-09-20
DE2910413C2 (fr) 1989-06-29
NL7902024A (nl) 1979-09-19
IT1114744B (it) 1986-01-27

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Legal Events

Date Code Title Description
ST Notification of lapse