ES2050606B1 - A PROCEDURE FOR THE PRODUCTION OF A SEMIPERMEABLE MEMBRANE. - Google Patents
A PROCEDURE FOR THE PRODUCTION OF A SEMIPERMEABLE MEMBRANE.Info
- Publication number
- ES2050606B1 ES2050606B1 ES9201796A ES9201796A ES2050606B1 ES 2050606 B1 ES2050606 B1 ES 2050606B1 ES 9201796 A ES9201796 A ES 9201796A ES 9201796 A ES9201796 A ES 9201796A ES 2050606 B1 ES2050606 B1 ES 2050606B1
- Authority
- ES
- Spain
- Prior art keywords
- procedure
- solvent
- production
- hydrocarbon
- semipermeable membrane
- 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.)
- Expired - Fee Related
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
UN PROCEDIMIENTO PARA LA PRODUCCION DE UNA MEMBRANA SEMIPERMEABLE. SE DESCRIBE UN PROCEDIMIENTO PARA LA PRODUCCION DE UNA MEMBRANA SEMIPERMEABLE COMPUESTA QUE TIENE UN ALTO RENDIMIENTO, EL CUAL NO SUPONE LA UTILIZACION DE DISOLVENTE FACILMENTE INFLAMABLE NI DISOLVENTE CLOROFLUOROCARBONADO QUE DESTRUYE EL MEDIO AMBIENTE. EN EL PROCEDIMIENTO DE LA PRESENTE INVENCION, SE APLICAN UNA SOLUCION DE AMINA POLIFUNCIONAL Y UNA SOLUCION DE HALURO DE ACIDO POLIFUNCIONAL EN UN DISOLVENTE A BASE DE HIDROCARBURO CON UN PUNTO DE INFLAMACION QUE NO ES INFERIOR A 10GC SOBRE UNA SUPERFICIE DE UN SUSTRATO MICROPOROSO PARA QUE PUEDA TENER LUGAR UNA REACCION DE POLICONDENSACION INTERFASICA COMO RESULTADO DE LA CUAL SE FORMA UNA MEMBRANA ULTRAFINA A BASE DE POLIAMIDA RETICULADA SUPERPUESTA AL SUSTRATO MICROPOROSO. SE INSUFLA ENTONCES UN GAS SOBRE LA SUPERFICIE DE LA MEMBRANA ULTRAFINA CON EL FIN DE EVAPORAR EL DISOLVENTE A BASE DE HIDROCARBURO, GAS QUE TIENE UNA VELOCIDAD EN LA SUPERFICIE DE 2-20 M/SEG., UNA TEMPERATURA DE 10-80GC QUE ES INFERIOR AL PUNTO DE INFLAMACION DEL DISOLVENTE A BASE DE HIDROCARBURO, Y UNA HUMEDAD ABSOLUTA NO INFERIOR A 1 G. DE AGUA POR 1 KG. DE GAS SECO.A PROCEDURE FOR THE PRODUCTION OF A SEMIPERMEABLE MEMBRANE. A PROCEDURE FOR THE PRODUCTION OF A COMPOSITE SEMIPERMEABLE MEMBRANE IS DESCRIBED, WHICH HAS A HIGH PERFORMANCE, WHICH DOES NOT SUPPLY THE USE OF EASILY FLAMMABLE SOLVENT OR CHLOROFLUORO-CARBON SOLVENT THAT DESTROYS THE ENVIRONMENT. IN THE PROCEDURE OF THE PRESENT INVENTION, A MULTIFUNCTIONAL AMINE SOLUTION AND A MULTIFUNCTIONAL ACID HALIDE SOLUTION ARE APPLIED IN A HYDROCARBON BASED SOLVENT WITH A FLASH POINT NOT LESS THAN 10GC ON A SURFACE OF A SUBSTRATE OF MICRO SUBSTRATE AN INTERPHASIC POLYCONDENSATION REACTION MAY RESULT AS A RESULT OF WHICH AN ULTRA-FINE MEMBRANE IS BASED UPON RETICULATED POLYAMIDE OVERLAPPING THE MICROPOROUS SUBSTRATE. THEN A GAS IS INSULATED INTO THE SURFACE OF THE ULTRAFINE MEMBRANE IN ORDER TO EVAPORATE THE HYDROCARBON-BASED SOLVENT, GAS THAT HAS A SPEED ON THE SURFACE OF 2-20 M / SEC., A TEMPERATURE OF 10-80GC WHICH IS LOWER AT THE FLASH POINT OF THE SOLVENT BASED ON HYDROCARBON, AND AN ABSOLUTE MOISTURE NOT LESS THAN 1 G. OF WATER PER 1 KG. OF DRY GAS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9201796A ES2050606B1 (en) | 1992-09-02 | 1992-09-02 | A PROCEDURE FOR THE PRODUCTION OF A SEMIPERMEABLE MEMBRANE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES9201796A ES2050606B1 (en) | 1992-09-02 | 1992-09-02 | A PROCEDURE FOR THE PRODUCTION OF A SEMIPERMEABLE MEMBRANE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2050606A1 ES2050606A1 (en) | 1994-05-16 |
| ES2050606B1 true ES2050606B1 (en) | 1994-12-01 |
Family
ID=8278087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES9201796A Expired - Fee Related ES2050606B1 (en) | 1992-09-02 | 1992-09-02 | A PROCEDURE FOR THE PRODUCTION OF A SEMIPERMEABLE MEMBRANE. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2050606B1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4277344A (en) * | 1979-02-22 | 1981-07-07 | Filmtec Corporation | Interfacially synthesized reverse osmosis membrane |
| JPS5824303A (en) * | 1981-08-03 | 1983-02-14 | Teijin Ltd | Oxidation resistant composite semipermeable membrane |
| CA1220990A (en) * | 1983-03-18 | 1987-04-28 | Stanley F. Rak | Reverse osmosis membrane and method for the preparation thereof |
| US4872984A (en) * | 1988-09-28 | 1989-10-10 | Hydranautics Corporation | Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same |
| US5258203A (en) * | 1991-02-04 | 1993-11-02 | E. I. Du Pont De Nemours And Company | Process for the manufacture of thin film composite membranes |
| DK0503596T3 (en) * | 1991-03-12 | 1996-07-29 | Toray Industries | Process for producing a semi-permeable composite membrane |
-
1992
- 1992-09-02 ES ES9201796A patent/ES2050606B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2050606A1 (en) | 1994-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD2A | Announcement of lapse in spain |
Effective date: 20180806 |