JPS6452814A - Polysulfone hollow fiber membrane and production thereof - Google Patents

Polysulfone hollow fiber membrane and production thereof

Info

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
Application number
JP21095787A
Other languages
Japanese (ja)
Other versions
JP2528893B2 (en
Inventor
Takehiko Okamoto
Hiroshi Shiragami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP21095787A priority Critical patent/JP2528893B2/en
Publication of JPS6452814A publication Critical patent/JPS6452814A/en
Application granted granted Critical
Publication of JP2528893B2 publication Critical patent/JP2528893B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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.
JP21095787A 1987-08-24 1987-08-24 Method for producing polysulfone hollow fiber membrane Expired - Fee Related JP2528893B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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