CA3209503C - Membrane à fibres creuses poreuses multicouche et méthode de production - Google Patents

Membrane à fibres creuses poreuses multicouche et méthode de production

Info

Publication number
CA3209503C
CA3209503C CA3209503A CA3209503A CA3209503C CA 3209503 C CA3209503 C CA 3209503C CA 3209503 A CA3209503 A CA 3209503A CA 3209503 A CA3209503 A CA 3209503A CA 3209503 C CA3209503 C CA 3209503C
Authority
CA
Canada
Prior art keywords
hollow fiber
fiber membrane
porous hollow
melt
membrane
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.)
Active
Application number
CA3209503A
Other languages
English (en)
Other versions
CA3209503A1 (fr
Inventor
Yuki MIKI
Original Assignee
Asahi Kasei Corp
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 Asahi Kasei Corp filed Critical Asahi Kasei Corp
Publication of CA3209503A1 publication Critical patent/CA3209503A1/fr
Application granted granted Critical
Publication of CA3209503C publication Critical patent/CA3209503C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B01D69/087—Details relating to the spinning process
    • B01D69/088—Co-extrusion; Co-spinning
    • 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
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/34—Polyvinylidene fluoride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/24—Mechanical properties, e.g. strength

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Multicomponent Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

Une méthode de production d’une membrane à fibres creuses poreuses multicouche est décrite, la membrane ayant un excellent rendement de filtration et une excellente résistance. Une méthode de production d’une membrane à fibres creuses poreuses multicouche de deux ou plusieurs couches comprend la formation d’une membrane de structure multicouche par l’extrusion de deux produits pétris à l’état fondu différents ou plus d’une buse de formation de fibres creuses comprenant un orifice de refoulement. Au moins un produit pétri à l’état fondu contient une résine thermoplastique présentant un point de fusion de moins de 170 °C et t >0 secondes, t étant un temps à partir du moment où les produits pétris à l’état fondu pour la formation des couches respectives de la membrane à fibres creuses poreuses multicouche sont fusionnés dans l’orifice de refoulement au moment où les produits pétris à l’état fondu fusionnés sont déchargés.
CA3209503A 2022-08-22 2023-08-16 Membrane à fibres creuses poreuses multicouche et méthode de production Active CA3209503C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022132092 2022-08-22
JP2022-132092 2022-08-22

Publications (2)

Publication Number Publication Date
CA3209503A1 CA3209503A1 (fr) 2024-02-22
CA3209503C true CA3209503C (fr) 2025-05-13

Family

ID=89956707

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3209503A Active CA3209503C (fr) 2022-08-22 2023-08-16 Membrane à fibres creuses poreuses multicouche et méthode de production

Country Status (3)

Country Link
JP (1) JP2024029746A (fr)
CN (1) CN117599618A (fr)
CA (1) CA3209503C (fr)

Also Published As

Publication number Publication date
JP2024029746A (ja) 2024-03-06
CA3209503A1 (fr) 2024-02-22
CN117599618A (zh) 2024-02-27

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