FR2368289A1 - SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANES - Google Patents
SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANESInfo
- Publication number
- FR2368289A1 FR2368289A1 FR7731590A FR7731590A FR2368289A1 FR 2368289 A1 FR2368289 A1 FR 2368289A1 FR 7731590 A FR7731590 A FR 7731590A FR 7731590 A FR7731590 A FR 7731590A FR 2368289 A1 FR2368289 A1 FR 2368289A1
- Authority
- FR
- France
- Prior art keywords
- solution
- preparation
- selective permeability
- membranes
- permeability membranes
- 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 3
- 230000035699 permeability Effects 0.000 title abstract 2
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 238000011033 desalting Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002798 polar solvent Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000013535 sea water Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/02—Polyamines
-
- 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
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
- B01D67/00111—Polymer pretreatment in the casting solutions
-
- 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
- B01D67/0083—Thermal after-treatment
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
L'invention se rapporte à la perméation sélective. Elle concerne notamment une solution pour la production de membranes à perméabilité sélective, qui comprend: a. un solvant aprotique, polaire, miscible avec l'eau,b. un polymère de condensation, c. un sel soluble dans le solvant, et d. un agent tensio-actif. Les membranes obtenues ont des propriétés améliorées et sont utiles pour le dessalage d'eau de mer, notammentThe invention relates to selective permeation. It relates in particular to a solution for the production of membranes with selective permeability, which comprises: a. an aprotic, polar solvent miscible with water, b. a condensation polymer, c. a salt soluble in the solvent, and d. a surfactant. The membranes obtained have improved properties and are useful for desalting seawater, in particular
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73463176A | 1976-10-21 | 1976-10-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2368289A1 true FR2368289A1 (en) | 1978-05-19 |
FR2368289B1 FR2368289B1 (en) | 1984-06-08 |
Family
ID=24952479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7731590A Granted FR2368289A1 (en) | 1976-10-21 | 1977-10-20 | SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANES |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5351184A (en) |
CA (1) | CA1107424A (en) |
DE (1) | DE2747408A1 (en) |
FR (1) | FR2368289A1 (en) |
GB (1) | GB1561200A (en) |
IT (1) | IT1143711B (en) |
NL (1) | NL7711594A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0045435A1 (en) * | 1980-07-25 | 1982-02-10 | Akzo GmbH | Polyamide membrane suitable for ultrafiltration and process for producing some |
EP0176992A2 (en) * | 1984-09-27 | 1986-04-09 | E.I. Du Pont De Nemours And Company | Reverse osmosis membranes and process for their preparation |
EP0445853A1 (en) * | 1990-02-12 | 1991-09-11 | Stork Friesland B.V. | Hydrophilic membrane, process for producing a hydrophilic membrane |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8320797D0 (en) * | 1983-08-02 | 1983-09-01 | Shell Int Research | Very thin dense membrane |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2017387A1 (en) * | 1968-09-04 | 1970-05-22 | Du Pont | |
US3660281A (en) * | 1970-05-06 | 1972-05-02 | Du Pont | Permeation separation membranes |
US3775361A (en) * | 1971-10-21 | 1973-11-27 | Du Pont | Preparation of stable concentrated solutions of aromatic nitrogen-linked condensation polymers |
US3816303A (en) * | 1972-12-20 | 1974-06-11 | Us Interior | Poly(n-amido)imides as semipermeable membranes |
FR2208696A1 (en) * | 1972-07-20 | 1974-06-28 | Du Pont | |
FR2283921A1 (en) * | 1974-09-05 | 1976-04-02 | Sumitomo Chemical Co | PROCESS FOR PREPARING MEMBRANES FOR THE SEPARATION OF SUBSTANCES |
US3954607A (en) * | 1972-05-01 | 1976-05-04 | E. I. Du Pont De Nemours And Company | Permselective membranes of diacyl hydrazide-containing aromatic polymers having selected metals complexed therewith |
FR2392697A1 (en) * | 1976-09-29 | 1978-12-29 | Pharmaco Inc | ULTRAFILTRATION MEMBRANES BASED ON HETERO-AROMATIC POLYMERS |
-
1977
- 1977-10-19 JP JP12467477A patent/JPS5351184A/en active Granted
- 1977-10-19 CA CA289,041A patent/CA1107424A/en not_active Expired
- 1977-10-20 FR FR7731590A patent/FR2368289A1/en active Granted
- 1977-10-20 GB GB43796/77A patent/GB1561200A/en not_active Expired
- 1977-10-20 IT IT28830/77A patent/IT1143711B/en active
- 1977-10-21 DE DE19772747408 patent/DE2747408A1/en active Granted
- 1977-10-21 NL NL7711594A patent/NL7711594A/en not_active Application Discontinuation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2017387A1 (en) * | 1968-09-04 | 1970-05-22 | Du Pont | |
US3567632A (en) * | 1968-09-04 | 1971-03-02 | Du Pont | Permselective,aromatic,nitrogen-containing polymeric membranes |
US3660281A (en) * | 1970-05-06 | 1972-05-02 | Du Pont | Permeation separation membranes |
US3775361A (en) * | 1971-10-21 | 1973-11-27 | Du Pont | Preparation of stable concentrated solutions of aromatic nitrogen-linked condensation polymers |
US3954607A (en) * | 1972-05-01 | 1976-05-04 | E. I. Du Pont De Nemours And Company | Permselective membranes of diacyl hydrazide-containing aromatic polymers having selected metals complexed therewith |
FR2208696A1 (en) * | 1972-07-20 | 1974-06-28 | Du Pont | |
US3816303A (en) * | 1972-12-20 | 1974-06-11 | Us Interior | Poly(n-amido)imides as semipermeable membranes |
FR2283921A1 (en) * | 1974-09-05 | 1976-04-02 | Sumitomo Chemical Co | PROCESS FOR PREPARING MEMBRANES FOR THE SEPARATION OF SUBSTANCES |
FR2392697A1 (en) * | 1976-09-29 | 1978-12-29 | Pharmaco Inc | ULTRAFILTRATION MEMBRANES BASED ON HETERO-AROMATIC POLYMERS |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0045435A1 (en) * | 1980-07-25 | 1982-02-10 | Akzo GmbH | Polyamide membrane suitable for ultrafiltration and process for producing some |
EP0176992A2 (en) * | 1984-09-27 | 1986-04-09 | E.I. Du Pont De Nemours And Company | Reverse osmosis membranes and process for their preparation |
EP0176992A3 (en) * | 1984-09-27 | 1987-12-09 | E.I. Du Pont De Nemours And Company | Reverse osmosis membranes and process for their preparation |
EP0445853A1 (en) * | 1990-02-12 | 1991-09-11 | Stork Friesland B.V. | Hydrophilic membrane, process for producing a hydrophilic membrane |
US5122273A (en) * | 1990-02-12 | 1992-06-16 | Stork Friesland B. V. | Hydrophilic membrane, process for producing a hydrophilic membrane |
Also Published As
Publication number | Publication date |
---|---|
GB1561200A (en) | 1980-02-13 |
FR2368289B1 (en) | 1984-06-08 |
DE2747408C2 (en) | 1987-06-25 |
CA1107424A (en) | 1981-08-18 |
JPS5351184A (en) | 1978-05-10 |
DE2747408A1 (en) | 1978-04-27 |
NL7711594A (en) | 1978-04-25 |
JPS6127085B2 (en) | 1986-06-24 |
IT1143711B (en) | 1986-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2368290A1 (en) | PERFECTED PROCESS FOR MANUFACTURING SELECTIVE PERMEABILITY MEMBRANES | |
DK521185A (en) | POLYMER SOLUTION AND PROCEDURE FOR THE PREPARATION OF SEMIPERMEABLE MEMBRANES USING THE POLYMER SOLUTION | |
GB1467827A (en) | Semipermeable membrane and process for the preparation thereof | |
ATE342231T1 (en) | METHOD FOR DEPLOYING THE METAL ION CONCENTRATION IN SALT SOLUTIONS | |
JPS5621604A (en) | Separation of liquid by semipermeable composite membrane | |
FR2368289A1 (en) | SOLUTION AND METHOD FOR THE PREPARATION OF SELECTIVE PERMEABILITY MEMBRANES | |
MA19291A1 (en) | WATER DESALINATION SYSTEM BY REVERSE OSMOSIS WITH PRESSURE RECOVERY. | |
FR2361435A1 (en) | PROCESS FOR IMPROVING THE CHARACTERISTICS OF A CATION EXCHANGER MEMBRANE | |
DK154223C (en) | PROCEDURE FOR CONTINUOUS PREPARATION OF POLYCARBONATE POLYAETER COPOLYMERS | |
BE746629A (en) | PROCESS FOR THE FORMATION OF SEMI-PERMEABLE MEMBRANES FOR DESALINATION OF BRINE AND MARINE WATER, BY HYPERFILTRATION, AND MEMBRANES PRODUCED BY THE SUSDIT PROCESS | |
JPS5426283A (en) | Preparation of semipermeable membrane of polysulfone | |
Frank | Desalination of sea water | |
FR2376108A1 (en) | DIPHENOL PURIFICATION PROCESS | |
DE1817542A1 (en) | Method of making a semi-permeable membrane | |
JPS5278291A (en) | Preparation of polyelectrolyte complexes and manufacture of membranes therefrom | |
ES8105160A1 (en) | Process for the recovery of liquid extractant and acid from emulsions formed during metal recovery from acid solutions | |
JPS52149271A (en) | Production of purified water | |
JPS5330482A (en) | Water making method | |
SU395775A1 (en) | VPT B | |
JPS5268876A (en) | Desalting apparatus | |
WO2005082500A3 (en) | Open-pore filtration membrane and method for producing the same | |
SU451634A1 (en) | Method of water desalination by electrodialysis | |
JPS55109408A (en) | Membrane separating method | |
ES484485A0 (en) | PROCEDURE FOR EXTRACTING DISSOLVED SUBSTANCES, IN SUSPENSION OR CHEMICALLY COMBINED FROM WATER. | |
Marcovich | Phanes, Phicola, and the Sethians |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |