JPS6415104A - Production of permselective compound hollow yarn membrane - Google Patents
Production of permselective compound hollow yarn membraneInfo
- Publication number
- JPS6415104A JPS6415104A JP17314087A JP17314087A JPS6415104A JP S6415104 A JPS6415104 A JP S6415104A JP 17314087 A JP17314087 A JP 17314087A JP 17314087 A JP17314087 A JP 17314087A JP S6415104 A JPS6415104 A JP S6415104A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- hollow yarn
- compound hollow
- external layer
- concn
- 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
- 150000001875 compounds Chemical class 0.000 title abstract 4
- 239000012528 membrane Substances 0.000 title abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 abstract 6
- 229920000642 polymer Polymers 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 229920002284 Cellulose triacetate Polymers 0.000 abstract 2
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 abstract 2
- 229940093476 ethylene glycol Drugs 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Multicomponent Fibers (AREA)
Abstract
PURPOSE:To make an external layer of a compound hollow yarn membrane having small film thickness and to produce a compound hollow yarn membrane having high water permeability in one stage by adjusting the concn. of an internal layer and an external layer of solns. of high molecular polymers to within specified ranges and adjusting the ratio of the concns. to >= a specified value. CONSTITUTION:A nozzle having two annulus openings around a circular opening is used. For example, a soln. contg. N-methyl-2-pyrrolidone and ethyleneglycol is extruded from the circular opening, a soln. contg. cellulose triacetate, N-methyl-2- pyrrolidone, and ethyleneglycol is extruded from the internal layer of the annulus opening, and a soln. contg. cellulose triacetate and N-methyl-2-pyrrolidone is extruded simultaneously with the above described two solns. from the external layer of the annulus opening. After evaporating the solvent, the product is guided to a coagulating bath, where it is freed of solvent in the water and treated with hot water. Thus, a compound hollow yarn is obtd. In this case, the concn. (Wi%) of the high molecular polymer in the soln. for the internal larer, the concn. (Wo%) of the high molecular polymer in the soln. for the external layer are regulated to satisfy the following relations: Wi/Wo>=5; 75>=Wi>=25; 15>=Wo>=0.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17314087A JP2646562B2 (en) | 1987-07-10 | 1987-07-10 | Method for producing permselective composite hollow fiber membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17314087A JP2646562B2 (en) | 1987-07-10 | 1987-07-10 | Method for producing permselective composite hollow fiber membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6415104A true JPS6415104A (en) | 1989-01-19 |
| JP2646562B2 JP2646562B2 (en) | 1997-08-27 |
Family
ID=15954857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17314087A Expired - Fee Related JP2646562B2 (en) | 1987-07-10 | 1987-07-10 | Method for producing permselective composite hollow fiber membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2646562B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199616A (en) * | 1987-10-09 | 1989-04-18 | Ube Ind Ltd | Manufacturing method of polyimide double-layer hollow fiber membrane |
| WO2016175308A1 (en) * | 2015-04-28 | 2016-11-03 | 東レ株式会社 | Composite hollow fiber membrane and method for producing same |
-
1987
- 1987-07-10 JP JP17314087A patent/JP2646562B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199616A (en) * | 1987-10-09 | 1989-04-18 | Ube Ind Ltd | Manufacturing method of polyimide double-layer hollow fiber membrane |
| WO2016175308A1 (en) * | 2015-04-28 | 2016-11-03 | 東レ株式会社 | Composite hollow fiber membrane and method for producing same |
| JPWO2016175308A1 (en) * | 2015-04-28 | 2018-02-15 | 東レ株式会社 | Composite hollow fiber membrane and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2646562B2 (en) | 1997-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |