FR2419742A1 - Procede pour ameliorer les performances de membranes semipermeables - Google Patents
Procede pour ameliorer les performances de membranes semipermeablesInfo
- 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
Links
- 239000012528 membrane Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 1
- 238000001223 reverse osmosis Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000000108 ultra-filtration Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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.
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)
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 |
DE3035134A1 (de) * | 1979-09-19 | 1981-04-09 | Aligena AG, Basel | Poroese, modifizierte, fuer die ultrafiltration geeignete membranen auf der basis von polyacrylnitrilen, verfahren zu ihrer herstellung und ihre verwendung |
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 |
JP2009533217A (ja) * | 2006-04-11 | 2009-09-17 | マサチューセッツ・インスティテュート・オブ・テクノロジー | ポリアクリロニトリルグラフトコポリマーによって形成されるファウリング抵抗性を有する膜 |
EP2168614B1 (fr) * | 2008-09-25 | 2012-02-15 | Gambro Lundia AB | Rein bio-artificiel hybride |
Family Cites Families (8)
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 |
-
1979
- 1979-03-05 US US06/017,326 patent/US4268662A/en not_active Expired - Lifetime
- 1979-03-14 NL NL7902024A patent/NL7902024A/xx not_active Application Discontinuation
- 1979-03-14 FR FR7906456A patent/FR2419742B1/fr not_active Expired
- 1979-03-16 DE DE19792910413 patent/DE2910413A1/de active Granted
- 1979-03-16 DK DK110279A patent/DK110279A/da not_active Application Discontinuation
- 1979-03-16 IT IT48386/79A patent/IT1114744B/it active
- 1979-03-19 GB GB7909506A patent/GB2016301B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2910413A1 (de) | 1979-09-20 |
NL7902024A (nl) | 1979-09-19 |
GB2016301A (en) | 1979-09-26 |
DK110279A (da) | 1979-09-18 |
US4268662A (en) | 1981-05-19 |
IT7948386A0 (it) | 1979-03-16 |
GB2016301B (en) | 1983-01-12 |
FR2419742B1 (fr) | 1986-04-04 |
IT1114744B (it) | 1986-01-27 |
DE2910413C2 (fr) | 1989-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |