FR2433357A1 - Membranes d'osmose inverse formees de derives de cellulose et solutions de coulee ou de moulage pour leur preparation - Google Patents
Membranes d'osmose inverse formees de derives de cellulose et solutions de coulee ou de moulage pour leur preparationInfo
- Publication number
- FR2433357A1 FR2433357A1 FR7824033A FR7824033A FR2433357A1 FR 2433357 A1 FR2433357 A1 FR 2433357A1 FR 7824033 A FR7824033 A FR 7824033A FR 7824033 A FR7824033 A FR 7824033A FR 2433357 A1 FR2433357 A1 FR 2433357A1
- Authority
- FR
- France
- Prior art keywords
- cellulose
- tetracarboxylic acid
- organic solvent
- obtd
- methyl
- 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
- 229920002678 cellulose Polymers 0.000 title abstract 4
- 239000001913 cellulose Substances 0.000 title abstract 4
- 239000012528 membrane Substances 0.000 title abstract 4
- 239000003960 organic solvent Substances 0.000 title abstract 3
- 150000000000 tetracarboxylic acids Chemical class 0.000 title abstract 3
- 239000001856 Ethyl cellulose Substances 0.000 title abstract 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 title abstract 2
- 229920006217 cellulose acetate butyrate Polymers 0.000 title abstract 2
- 239000001923 methylcellulose Substances 0.000 title abstract 2
- 235000010981 methylcellulose Nutrition 0.000 title abstract 2
- 235000019325 ethyl cellulose Nutrition 0.000 title 1
- 229920001249 ethyl cellulose Polymers 0.000 title 1
- 229920000609 methyl cellulose Polymers 0.000 title 1
- 238000001223 reverse osmosis Methods 0.000 title 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 abstract 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 abstract 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 abstract 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 abstract 1
- GGAUUQHSCNMCAU-ZXZARUISSA-N (2s,3r)-butane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C[C@H](C(O)=O)[C@H](C(O)=O)CC(O)=O GGAUUQHSCNMCAU-ZXZARUISSA-N 0.000 abstract 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 125000002723 alicyclic group Chemical group 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 229920006184 cellulose methylcellulose Polymers 0.000 abstract 1
- STZIXLPVKZUAMV-UHFFFAOYSA-N cyclopentane-1,1,2,2-tetracarboxylic acid Chemical compound OC(=O)C1(C(O)=O)CCCC1(C(O)=O)C(O)=O STZIXLPVKZUAMV-UHFFFAOYSA-N 0.000 abstract 1
- FGQOVSPPSXYIBT-UHFFFAOYSA-N cyclopropane-1,1,2,2-tetracarboxylic acid Chemical compound OC(=O)C1(C(O)=O)CC1(C(O)=O)C(O)=O FGQOVSPPSXYIBT-UHFFFAOYSA-N 0.000 abstract 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 abstract 1
- 235000010944 ethyl methyl cellulose Nutrition 0.000 abstract 1
- AIJZIRPGCQPZSL-UHFFFAOYSA-N ethylenetetracarboxylic acid Chemical compound OC(=O)C(C(O)=O)=C(C(O)=O)C(O)=O AIJZIRPGCQPZSL-UHFFFAOYSA-N 0.000 abstract 1
- 229920003087 methylethyl cellulose Polymers 0.000 abstract 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 abstract 1
- 125000000962 organic group Chemical group 0.000 abstract 1
- 150000003839 salts Chemical group 0.000 abstract 1
- 239000011800 void material Substances 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
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- 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
- B01D71/08—Polysaccharides
- B01D71/12—Cellulose derivatives
- B01D71/14—Esters of organic acids
- B01D71/16—Cellulose acetate
-
- 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
- B01D71/08—Polysaccharides
- B01D71/12—Cellulose derivatives
- B01D71/14—Esters of organic acids
- B01D71/18—Mixed esters, e.g. cellulose acetate-butyrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
- B29K2001/08—Cellulose derivatives
- B29K2001/12—Cellulose acetate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Membranes d'osmose inverse constituées de dérivés de cellulose et solutions de coulée ou de moulage pour ces membranes. Ces membranes d'osmose inverse formées de dérivés de cellulose ont une valeur A**3/B non inférieure à environ : 3 x 10**-10 G**3/cm**7.s**2.aim**3 et pas plus d'environ 0,2 vide pour 0,844 mm**2, où A est le coefficient de passage d'eau et est égal à F1 /( DELTA P - DELTA pi ), F1 étant l'écoulement d'eau produite à travers la membrane, DELTA P la différence de pression appliquée et DELTA pi la différence de pression osmotique, B étant le coefficient de passage de sel, les solutions de coulée pour la préparation de ces membranes comprennent le dérive de cellulose, un solvant organique et un acide tétracarboxylique représenté par la formule : R-(CO2 H)4 , où R est un radical organique aliphatique ou alicyclique tétravalent, ayant 2 à 10 atomes de carbone. La présente invention est particulièrement utile pour fournir des membranes perfectionnées pour l'osmose inverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7824033A FR2433357A1 (fr) | 1978-08-17 | 1978-08-17 | Membranes d'osmose inverse formees de derives de cellulose et solutions de coulee ou de moulage pour leur preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7824033A FR2433357A1 (fr) | 1978-08-17 | 1978-08-17 | Membranes d'osmose inverse formees de derives de cellulose et solutions de coulee ou de moulage pour leur preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2433357A1 true FR2433357A1 (fr) | 1980-03-14 |
| FR2433357B1 FR2433357B1 (fr) | 1983-04-15 |
Family
ID=9211891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7824033A Granted FR2433357A1 (fr) | 1978-08-17 | 1978-08-17 | Membranes d'osmose inverse formees de derives de cellulose et solutions de coulee ou de moulage pour leur preparation |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2433357A1 (fr) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1528016A (fr) * | 1966-05-02 | 1968-06-07 | Aerojet General Co | Membrane pour osmose inverse, et son procédé de fabrication |
| US3673084A (en) * | 1966-01-17 | 1972-06-27 | Aerojet General Co | Reverse osmosis and process and composition for manufacturing cellulose acetate membranes wherein the swelling agent is a di-or tri-basic aliphatic acid |
| US4026978A (en) * | 1975-07-17 | 1977-05-31 | The United States Of America As Represented By The Secretary Of The Interior | Method of making asymmetric cellulose triacetate membranes |
| FR2351147A1 (fr) * | 1976-05-14 | 1977-12-09 | Sartorius Membranfilter Gmbh | Procede de fabrication de membranes pour la separation osmotique |
| US4062782A (en) * | 1970-02-26 | 1977-12-13 | Canadian Patents And Development Ltd | Reverse osmosis membranes |
-
1978
- 1978-08-17 FR FR7824033A patent/FR2433357A1/fr active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673084A (en) * | 1966-01-17 | 1972-06-27 | Aerojet General Co | Reverse osmosis and process and composition for manufacturing cellulose acetate membranes wherein the swelling agent is a di-or tri-basic aliphatic acid |
| FR1528016A (fr) * | 1966-05-02 | 1968-06-07 | Aerojet General Co | Membrane pour osmose inverse, et son procédé de fabrication |
| US4062782A (en) * | 1970-02-26 | 1977-12-13 | Canadian Patents And Development Ltd | Reverse osmosis membranes |
| US4026978A (en) * | 1975-07-17 | 1977-05-31 | The United States Of America As Represented By The Secretary Of The Interior | Method of making asymmetric cellulose triacetate membranes |
| FR2351147A1 (fr) * | 1976-05-14 | 1977-12-09 | Sartorius Membranfilter Gmbh | Procede de fabrication de membranes pour la separation osmotique |
Non-Patent Citations (1)
| Title |
|---|
| EXRV/70 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2433357B1 (fr) | 1983-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |