MX169443B - MIXED MEMBRANES AND THEIR MANUFACTURE AND USE - Google Patents
MIXED MEMBRANES AND THEIR MANUFACTURE AND USEInfo
- Publication number
- MX169443B MX169443B MX1252588A MX1252588A MX169443B MX 169443 B MX169443 B MX 169443B MX 1252588 A MX1252588 A MX 1252588A MX 1252588 A MX1252588 A MX 1252588A MX 169443 B MX169443 B MX 169443B
- Authority
- MX
- Mexico
- Prior art keywords
- hollow fiber
- substrate
- membrane
- porous
- mixed
- Prior art date
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
La presente invención se refire a un procedimiento para formar una membrana mixta de fibra hueca para separación de fluido, caracterizado porque comprende: i) revestir un substrato de fibra hueca porosa, preformado, con una composición formadora de membrana; ii) transportar el substrato de fibra hueca, porosa, revestido con la composición, a traves de una atmósfera gaseosa para evaporar algo, pero no todo, del solvente en dicha composición, desde la superficie del substrato revetido de fibra hueca porosa; iii) transportar dicho substrato revestido, parcialmente secado, de fibra hueca porosa, cuya superficie revestida no ha hecho contacto con una superficie sólida desde el momento en que dicha solución de composición formadora de membrana fue aplicada a la superficie del substrato de fibra hueca porosa, hacia un baño de coagulación líquido; y iv) recuperar la membrana mixta de fibra hueca. Una membrana mixta de fibra hueca para separar fluidos, que comprende un revestimiento y un substrato poroso de fibra hueca.The present invention relates to a process for forming a mixed hollow fiber membrane for fluid separation, characterized in that it comprises: i) coating a preformed porous hollow fiber substrate with a membrane-forming composition; ii) transporting the composition-coated porous hollow fiber substrate through a gaseous atmosphere to evaporate some, but not all, of the solvent in said composition, from the surface of the porous hollow fiber coated substrate; iii) transporting said partially dried, porous hollow fiber coated substrate, the coated surface of which has not contacted a solid surface from the time said membrane-forming composition solution was applied to the surface of the porous hollow fiber substrate, into a liquid coagulation bath; and iv) recover the mixed hollow fiber membrane. A mixed hollow fiber membrane for separating fluids, comprising a hollow fiber porous coating and substrate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX1252588A MX169443B (en) | 1988-08-02 | 1988-08-02 | MIXED MEMBRANES AND THEIR MANUFACTURE AND USE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX1252588A MX169443B (en) | 1988-08-02 | 1988-08-02 | MIXED MEMBRANES AND THEIR MANUFACTURE AND USE |
Publications (1)
Publication Number | Publication Date |
---|---|
MX169443B true MX169443B (en) | 1993-07-05 |
Family
ID=19742055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX1252588A MX169443B (en) | 1988-08-02 | 1988-08-02 | MIXED MEMBRANES AND THEIR MANUFACTURE AND USE |
Country Status (1)
Country | Link |
---|---|
MX (1) | MX169443B (en) |
-
1988
- 1988-08-02 MX MX1252588A patent/MX169443B/en unknown
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