IL43201A - Reverse osmosis membrane and its preparation - Google Patents
Reverse osmosis membrane and its preparationInfo
- Publication number
- IL43201A IL43201A IL43201A IL4320173A IL43201A IL 43201 A IL43201 A IL 43201A IL 43201 A IL43201 A IL 43201A IL 4320173 A IL4320173 A IL 4320173A IL 43201 A IL43201 A IL 43201A
- Authority
- IL
- Israel
- Prior art keywords
- polyethylenimine
- reverse osmosis
- osmosis membrane
- chloride
- support
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title claims 8
- 238000001223 reverse osmosis Methods 0.000 title claims 7
- 238000002360 preparation method Methods 0.000 title claims 3
- 238000000034 method Methods 0.000 claims 12
- 229920002873 Polyethylenimine Polymers 0.000 claims 7
- 239000003431 cross linking reagent Substances 0.000 claims 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 2
- 239000007864 aqueous solution Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims 2
- 125000000524 functional group Chemical group 0.000 claims 2
- 239000011780 sodium chloride Substances 0.000 claims 2
- 239000000243 solution Substances 0.000 claims 2
- 239000002904 solvent Substances 0.000 claims 2
- 125000003277 amino group Chemical group 0.000 claims 1
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 claims 1
- 239000003153 chemical reaction reagent Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 claims 1
- 238000010612 desalination reaction Methods 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229920002492 poly(sulfone) Polymers 0.000 claims 1
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 claims 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims 1
- NJMOHBDCGXJLNJ-UHFFFAOYSA-N trimellitic anhydride chloride Chemical compound ClC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 NJMOHBDCGXJLNJ-UHFFFAOYSA-N 0.000 claims 1
Classifications
-
- 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
- B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
-
- 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
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
- B01D71/60—Polyamines
-
- 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
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
- B01D71/60—Polyamines
- B01D71/601—Polyethylenimine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Claims (12)
1. A method for preparation of a reverse osmosis membrane comprising crosslinking a film of polyethylenimine by reaction with a polyfunctional crosslinking reagent whose functional groups are capable of reacting with amine groups in the polyethylenimine, said reagent being one or more compounds selected from the group comprising tolylene 2 , 4-diisocyanate , cyanuric chloride, tereph- thaloyl chloride, diphenyl ether disulfonyl chloride, isophthaloyl dichloride, trimellitic anhydride acid chloride and metabenzene disulfonyl chloride.
2. The method of claim 1 wherein the film of polyethylenimine is prepared from a solution of the polyethylenimine in water and wherein the crosslinking reagent is present in a solvent solution.
3. The method of claim 2 wherein the concentration of the polyethylenimine in the aqueous solution is from 0.033 to 2.7 wt . percent.
4. The method of claim 2 wherein the concentration of the polyethylenimine in the aqueous solution is from 0.33 to 1.0 wt . percent.
5. The method of any one of claims 2 to 4 wherein the concentration of the crosslinking reagent in the solvent is from 0.1 to 5.0 wt. percent.
6. The method of claim 1 in which the functional groups of 43201/2
7. . The method of claim 1 in which the membrane is prepared in situ on a support material by forming a layer of polyethylenimine on the support, followed by reaction with the crosslinking reagent.
8. . The method of claim 7 in which the support is a microporous polymeric film.
9. . The method of claim 8 in which the support is a polysulfone film.
10. .· A method for preparation of a reverse osmosis membrane substantially as hereinbefore described.
11. . A reverse osmosis membrane prepared by the method of any one of claims 1 to 1C.
12. In a process for desalination of saline water by reverse osmosis comprising contacting the saline water under pressure with a reverse osmosis membrane, the improvement comprising using the membrane of claim .11 as the reverse osmosis membrane. For the Applt jrrtfj^v
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28759272A | 1972-09-19 | 1972-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL43201A0 IL43201A0 (en) | 1973-11-28 |
| IL43201A true IL43201A (en) | 1976-11-30 |
Family
ID=23103566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL43201A IL43201A (en) | 1972-09-19 | 1973-09-11 | Reverse osmosis membrane and its preparation |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5824447B2 (en) |
| AU (1) | AU475380B2 (en) |
| CA (1) | CA1030711A (en) |
| DE (1) | DE2346659C2 (en) |
| DK (1) | DK145526C (en) |
| FR (1) | FR2200030B1 (en) |
| GB (1) | GB1441014A (en) |
| IL (1) | IL43201A (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2293960A2 (en) * | 1974-12-10 | 1976-07-09 | Rhone Poulenc Ind | Semi-permeable composite membranes for eg reverse osmosis - comprising polyelectrolyte skin contg sulphonic acid and quat ammonium gps and anisotropic membrane |
| US4226673A (en) * | 1976-03-15 | 1980-10-07 | Champion International Corporation | Color removal from paper and pulp mill aqueous effluents |
| JPS52127481A (en) * | 1976-04-19 | 1977-10-26 | Uop Inc | Complex semipermeable membrane and the manufacture |
| US4125462A (en) * | 1977-08-30 | 1978-11-14 | Rohm And Haas Company | Coated membranes |
| JPS5443882A (en) * | 1977-09-14 | 1979-04-06 | Nippon Zeon Co Ltd | Preparation of semipermeable membrane |
| US4259183A (en) * | 1978-11-07 | 1981-03-31 | Midwest Research Institute | Reverse osmosis membrane |
| JPS55134607A (en) * | 1979-04-06 | 1980-10-20 | Nippon Shokubai Kagaku Kogyo Co Ltd | Semipermeable composite membrane with excellent performance and preparation thereof |
| US4337154A (en) * | 1979-04-04 | 1982-06-29 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Crosslinked composite semipermeable membrane |
| IL70415A (en) * | 1982-12-27 | 1987-07-31 | Aligena Ag | Semipermeable encapsulated membranes,their manufacture and their use |
| JPS6028803A (en) * | 1983-07-26 | 1985-02-14 | Agency Of Ind Science & Technol | Selective permeable membrane and its manufacture |
| JPS60105854U (en) * | 1983-12-23 | 1985-07-19 | 本田技研工業株式会社 | vaporizer float valve |
| US4761234A (en) * | 1985-08-05 | 1988-08-02 | Toray Industries, Inc. | Interfacially synthesized reverse osmosis membrane |
| JPH07178327A (en) * | 1993-11-12 | 1995-07-18 | Nitto Denko Corp | Composite semipermeable membrane and its production |
| WO2011097403A1 (en) | 2010-02-04 | 2011-08-11 | Dxv Water Technologies, Llc | Water treatment systems and methods |
| JP5823761B2 (en) * | 2011-07-26 | 2015-11-25 | ダイセン・メンブレン・システムズ株式会社 | NF membrane and manufacturing method thereof |
| US10513446B2 (en) | 2014-10-10 | 2019-12-24 | EcoDesal, LLC | Depth exposed membrane for water extraction |
| CN112973460B (en) * | 2021-03-15 | 2022-07-08 | 中国石油大学(北京) | Crosslinked covalent organic framework desalting membrane and preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3556305A (en) * | 1968-03-28 | 1971-01-19 | Amicon Corp | Composite membrane and process for making same |
| FR2088598A5 (en) * | 1970-04-17 | 1972-01-07 | Anvar |
-
1973
- 1973-09-11 IL IL43201A patent/IL43201A/en unknown
- 1973-09-17 DE DE2346659A patent/DE2346659C2/en not_active Expired
- 1973-09-17 JP JP48103945A patent/JPS5824447B2/en not_active Expired
- 1973-09-17 AU AU60347/73A patent/AU475380B2/en not_active Expired
- 1973-09-18 GB GB4363973A patent/GB1441014A/en not_active Expired
- 1973-09-18 DK DK510573A patent/DK145526C/en not_active IP Right Cessation
- 1973-09-18 CA CA181,325A patent/CA1030711A/en not_active Expired
- 1973-09-19 FR FR7333626A patent/FR2200030B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49133282A (en) | 1974-12-20 |
| DE2346659C2 (en) | 1981-09-24 |
| FR2200030A1 (en) | 1974-04-19 |
| IL43201A0 (en) | 1973-11-28 |
| AU6034773A (en) | 1975-03-20 |
| AU475380B2 (en) | 1976-08-19 |
| CA1030711A (en) | 1978-05-09 |
| GB1441014A (en) | 1976-06-30 |
| DK145526B (en) | 1982-12-06 |
| DK145526C (en) | 1983-05-02 |
| JPS5824447B2 (en) | 1983-05-21 |
| DE2346659A1 (en) | 1974-03-28 |
| FR2200030B1 (en) | 1976-05-14 |
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