ES382363A1 - Membranes formation procedure. (Machine-translation by Google Translate, not legally binding) - Google Patents
Membranes formation procedure. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES382363A1 ES382363A1 ES382363A ES382363A ES382363A1 ES 382363 A1 ES382363 A1 ES 382363A1 ES 382363 A ES382363 A ES 382363A ES 382363 A ES382363 A ES 382363A ES 382363 A1 ES382363 A1 ES 382363A1
- Authority
- ES
- Spain
- Prior art keywords
- tubular support
- molding liquid
- wall
- liquid
- translation
- 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
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Membrane forming process, in a tubular structure including a permeable membrane and a porous tubular support, using a membrane molding liquid comprising a cellulosic derivative selected from the group consisting of cellulose ethers and esters, as well as a carrier material which allows the formation of a permeable membrane of the cellulose derivative when the carrier material is separated therefrom, which process comprises the improvements consisting of a), introducing a quantity of molding liquid into a porous tubular support to wet the entire surface of the inner wall of said tubular support, exceeding such amount as is necessary to wet the entire surface of that inner wall; b), allowing the molding liquid to be evacuated from the tubular support to form a thin film of liquid on the inner wall of the tubular support; and, c), separating the carrier material from the thin molding liquid film by passing a column of liquid which gels or solidifies the molding liquid axially and along the interior of the molding liquid film formed on the inner wall of the molding liquid. Tubular support, to form "in situ" a permeable membrane inside the porous tubular support. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86451169A | 1969-07-31 | 1969-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES382363A1 true ES382363A1 (en) | 1973-04-16 |
Family
ID=25343423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES382363A Expired ES382363A1 (en) | 1969-07-31 | 1970-07-31 | Membranes formation procedure. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES382363A1 (en) |
-
1970
- 1970-07-31 ES ES382363A patent/ES382363A1/en not_active Expired
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