JPS6452814A - Polysulfone hollow fiber membrane and production thereof - Google Patents
Polysulfone hollow fiber membrane and production thereofInfo
- Publication number
- JPS6452814A JPS6452814A JP21095787A JP21095787A JPS6452814A JP S6452814 A JPS6452814 A JP S6452814A JP 21095787 A JP21095787 A JP 21095787A JP 21095787 A JP21095787 A JP 21095787A JP S6452814 A JPS6452814 A JP S6452814A
- Authority
- JP
- Japan
- Prior art keywords
- dry
- hollow fiber
- fiber membrane
- membrane
- solvent
- 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
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
- B01D69/08—Hollow fibre membranes
-
- 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
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
PURPOSE:To obtain the titled hollow fiber membrane suitable for external pressure whole filtration system, applicable to e.g. purifying tap water etc., by dry-wet spinning, under specified conditions through an annular nozzle, of a stock solution prepared by dissolving polysulfone and a fine pore-forming agent in a solvent common therefor. CONSTITUTION:When a hollow fiber membrane is to be produced by dry-wet spinning, through extrusion from an annular nozzle, of a stock solution prepared by dissolving polysulfone and a fine pore-forming agent (e.g. polyethylene glycol) in a solvent common therefor (e.g. DMF), (A) the dry zone atmosphere is kept at a state of either dry air with a dew point of <=-10 deg.C or nitrogen gas, (B) water at <=50 deg.C is used as the external coagulating bath, and (C) an aqueous solution of said common solvent with the concentration of 50-90wt.% is used as the internal coagulating liquid for injection into the core, thus obtaining the objective membrane with uniform skin layer free from fine pores of a size >=100Angstrom on the external surface, having fine pores of an average size 200-300Angstrom at an open cell rate 5-10% on the internal surface also with the interior of the membrane representing a finely porous structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21095787A JP2528893B2 (en) | 1987-08-24 | 1987-08-24 | Method for producing polysulfone hollow fiber membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21095787A JP2528893B2 (en) | 1987-08-24 | 1987-08-24 | Method for producing polysulfone hollow fiber membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6452814A true JPS6452814A (en) | 1989-02-28 |
JP2528893B2 JP2528893B2 (en) | 1996-08-28 |
Family
ID=16597912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21095787A Expired - Fee Related JP2528893B2 (en) | 1987-08-24 | 1987-08-24 | Method for producing polysulfone hollow fiber membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2528893B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0314611A (en) * | 1989-06-09 | 1991-01-23 | Komatsu Ltd | Production of hollow fibers for aeration |
WO2007007051A1 (en) * | 2005-07-08 | 2007-01-18 | The University Of Bath | Hollow fibres |
JP2009542424A (en) * | 2006-07-07 | 2009-12-03 | ガンブロ・ルンディア・エービー | Plasma separation membrane |
CN103463994A (en) * | 2013-07-23 | 2013-12-25 | 天津工业大学 | Hollow polysulfone fiber film for water purifying cup and preparation method thereof |
CN117509541A (en) * | 2024-01-08 | 2024-02-06 | 潍坊石大昌盛能源科技有限公司 | Method for preparing high-purity hydrogen by cracking crude hydrogen with methanol |
-
1987
- 1987-08-24 JP JP21095787A patent/JP2528893B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0314611A (en) * | 1989-06-09 | 1991-01-23 | Komatsu Ltd | Production of hollow fibers for aeration |
WO2007007051A1 (en) * | 2005-07-08 | 2007-01-18 | The University Of Bath | Hollow fibres |
US8669200B2 (en) | 2005-07-08 | 2014-03-11 | The University Of Bath | Hollow fibres |
JP2009542424A (en) * | 2006-07-07 | 2009-12-03 | ガンブロ・ルンディア・エービー | Plasma separation membrane |
CN103463994A (en) * | 2013-07-23 | 2013-12-25 | 天津工业大学 | Hollow polysulfone fiber film for water purifying cup and preparation method thereof |
CN117509541A (en) * | 2024-01-08 | 2024-02-06 | 潍坊石大昌盛能源科技有限公司 | Method for preparing high-purity hydrogen by cracking crude hydrogen with methanol |
CN117509541B (en) * | 2024-01-08 | 2024-03-15 | 潍坊石大昌盛能源科技有限公司 | Method for preparing high-purity hydrogen by cracking crude hydrogen with methanol |
Also Published As
Publication number | Publication date |
---|---|
JP2528893B2 (en) | 1996-08-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |