IT1130229B - Membrane di cellulosa rigenerata al cuprammonio e metodo di preparazione delle stesse - Google Patents

Membrane di cellulosa rigenerata al cuprammonio e metodo di preparazione delle stesse

Info

Publication number
IT1130229B
IT1130229B IT19476/80A IT1947680A IT1130229B IT 1130229 B IT1130229 B IT 1130229B IT 19476/80 A IT19476/80 A IT 19476/80A IT 1947680 A IT1947680 A IT 1947680A IT 1130229 B IT1130229 B IT 1130229B
Authority
IT
Italy
Prior art keywords
preparation
regenerated cellulose
cellulose membranes
cuprammonium regenerated
cuprammonium
Prior art date
Application number
IT19476/80A
Other languages
English (en)
Other versions
IT8019476A0 (it
Inventor
Shinichi Uematsu
Osamu Egami
Yoshiji Kaneko
Original Assignee
Asahi Chemical Ind
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
Priority claimed from JP704979A external-priority patent/JPS5599926A/ja
Priority claimed from JP705079A external-priority patent/JPS5599305A/ja
Application filed by Asahi Chemical Ind filed Critical Asahi Chemical Ind
Publication of IT8019476A0 publication Critical patent/IT8019476A0/it
Application granted granted Critical
Publication of IT1130229B publication Critical patent/IT1130229B/it

Links

Classifications

    • 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
    • B01D71/08—Polysaccharides
    • B01D71/10—Cellulose; Modified cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/24—Dialysis ; Membrane extraction
    • B01D61/243—Dialysis
    • 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
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • 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
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • 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
    • B01D67/0095—Drying

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
IT19476/80A 1979-01-26 1980-01-25 Membrane di cellulosa rigenerata al cuprammonio e metodo di preparazione delle stesse IT1130229B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP704979A JPS5599926A (en) 1979-01-26 1979-01-26 Membrane formation
JP705079A JPS5599305A (en) 1979-01-26 1979-01-26 Selectively permeable membrane

Publications (2)

Publication Number Publication Date
IT8019476A0 IT8019476A0 (it) 1980-01-25
IT1130229B true IT1130229B (it) 1986-06-11

Family

ID=26341292

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19476/80A IT1130229B (it) 1979-01-26 1980-01-25 Membrane di cellulosa rigenerata al cuprammonio e metodo di preparazione delle stesse

Country Status (2)

Country Link
DE (1) DE3002438C2 (it)
IT (1) IT1130229B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028213C2 (de) * 1980-07-25 1990-12-06 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung einer Ultrafiltrationsmembran aus Polyamid und daraus hergestellte Membran
US4444663A (en) * 1980-09-16 1984-04-24 Terumo Corporation Membrane and method for manufacture thereof
DE3042110A1 (de) * 1980-11-07 1982-06-16 Akzo Gmbh, 5600 Wuppertal Mikroporoese cellulosemembran
EP4434612A1 (en) * 2023-03-22 2024-09-25 Sartorius Stedim Biotech GmbH Thermal treatment of ultrafiltration membranes

Also Published As

Publication number Publication date
DE3002438C2 (de) 1982-04-08
IT8019476A0 (it) 1980-01-25
DE3002438A1 (de) 1980-07-31

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