WO2011046514A3 - Hollow fiber membrane - Google Patents

Hollow fiber membrane Download PDF

Info

Publication number
WO2011046514A3
WO2011046514A3 PCT/SG2010/000390 SG2010000390W WO2011046514A3 WO 2011046514 A3 WO2011046514 A3 WO 2011046514A3 SG 2010000390 W SG2010000390 W SG 2010000390W WO 2011046514 A3 WO2011046514 A3 WO 2011046514A3
Authority
WO
WIPO (PCT)
Prior art keywords
layer
hollow fiber
fiber membrane
selective
supporting
Prior art date
Application number
PCT/SG2010/000390
Other languages
French (fr)
Other versions
WO2011046514A2 (en
Inventor
Yi Li
Tai-Shung Chung
Original Assignee
National University Of Singapore
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 National University Of Singapore filed Critical National University Of Singapore
Publication of WO2011046514A2 publication Critical patent/WO2011046514A2/en
Publication of WO2011046514A3 publication Critical patent/WO2011046514A3/en

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
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • 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
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/148—Organic/inorganic mixed matrix membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/04—Characteristic thickness

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)

Abstract

A hollow fiber membrane including a selective polymer layer and a supporting polymer layer. The selective layer also contains sulfonate ions and transition metal ions. It has a thickness of 20-300 nm. The supporting layer contains voids having sizes of 1-100,000 nm. It has a thickness of 35-250 µm. The selective layer has a higher density than the supporting layer.
PCT/SG2010/000390 2009-10-14 2010-10-13 Hollow fiber membrane WO2011046514A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25135909P 2009-10-14 2009-10-14
US61/251,359 2009-10-14

Publications (2)

Publication Number Publication Date
WO2011046514A2 WO2011046514A2 (en) 2011-04-21
WO2011046514A3 true WO2011046514A3 (en) 2011-07-14

Family

ID=43876758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2010/000390 WO2011046514A2 (en) 2009-10-14 2010-10-13 Hollow fiber membrane

Country Status (1)

Country Link
WO (1) WO2011046514A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105727752B (en) * 2016-05-11 2018-08-14 贵州省材料产业技术研究院 A kind of preparation method and product of high-intensity anti-pollution antibacterial hollow fiber nanofiltration membrane
CN111135726A (en) * 2018-11-06 2020-05-12 王俊 Separation membrane with high-strength protective belt and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725633A (en) * 1995-06-30 1998-03-10 Praxair Technology, Inc. Sulfonated polyimide gas separation membranes
US5795920A (en) * 1995-08-21 1998-08-18 Korea Institute Of Science And Technology Polymeric dope solution for use in the preparation of an integrally skinned asymmetric membrane
US20040200355A1 (en) * 2003-04-11 2004-10-14 Kim Jong Hak Facilitated transport membranes comprising a porous supported membrane and a transition metal salt-polymer mixture membrane containing transition metal salt and polymer capable of physically dispersing the salt
US7303609B2 (en) * 2001-11-08 2007-12-04 British Gas Asia Pacific Pte Limited Manufacture of polyimide-hollow fibres

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725633A (en) * 1995-06-30 1998-03-10 Praxair Technology, Inc. Sulfonated polyimide gas separation membranes
US5795920A (en) * 1995-08-21 1998-08-18 Korea Institute Of Science And Technology Polymeric dope solution for use in the preparation of an integrally skinned asymmetric membrane
US7303609B2 (en) * 2001-11-08 2007-12-04 British Gas Asia Pacific Pte Limited Manufacture of polyimide-hollow fibres
US20040200355A1 (en) * 2003-04-11 2004-10-14 Kim Jong Hak Facilitated transport membranes comprising a porous supported membrane and a transition metal salt-polymer mixture membrane containing transition metal salt and polymer capable of physically dispersing the salt

Also Published As

Publication number Publication date
WO2011046514A2 (en) 2011-04-21

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