IT8019476A0 - 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
IT8019476A0
IT8019476A0 IT8019476A IT1947680A IT8019476A0 IT 8019476 A0 IT8019476 A0 IT 8019476A0 IT 8019476 A IT8019476 A IT 8019476A IT 1947680 A IT1947680 A IT 1947680A IT 8019476 A0 IT8019476 A0 IT 8019476A0
Authority
IT
Italy
Prior art keywords
preparation
regenerated cellulose
cellulose membranes
cuprammonium regenerated
cuprammonium
Prior art date
Application number
IT8019476A
Other languages
English (en)
Other versions
IT1130229B (it
Inventor
Uematsu Shinichi
Egami Osamu
Kaneko Yoshiji
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 true IT8019476A0 (it) 1980-01-25
IT1130229B 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
DE3002438A1 (de) 1980-07-31
DE3002438C2 (de) 1982-04-08
IT1130229B (it) 1986-06-11

Similar Documents

Publication Publication Date Title
IT7847840A0 (it) Membrana di cellulosa per emodialisi e procedimento per la sua produzione
IT1117773B (it) Perfezionamento nelle membrane di dialisi in cellulosa rigenerata
DE3066996D1 (en) Porous semipermeable cellulose acetate membranes modified by ionic groups, process for their production and their use
IT8026850A0 (it) Processo per la preparazione di cellulosa in microfibrille e cellulosa ottenuta con lo stesso.
IT7826174A0 (it) Procedimento per la preparazione di corpi formati di cellulosa rigenerata da soluzioni di derivati della cellulosa in dimetilsolfossido.
FI811840A7 (fi) Selluloosasta valmistettu dialyysimembraani.
EP0266795A3 (en) Improved regenerated cellulose membrane and process for preparation thereof
BR7607083A (pt) Processo para preparacao de um polissacarideo modificado e em particular de um derivado de celulose,e polissacarideo assim obtidos
AR219906A1 (es) Membrana semipermeable compuesta y metodo para la preparacion de dicha membrana
BE853803A (fr) Procede de preparation de perles de cellulose poreuses
DK165956C (da) Poroese hule fibre af regenereret cellulose og fremgangsmaade til fremstilling heraf
IT1131098B (it) Procedimento per la preparazione di membrane anisotrope e membrane prodotte da esso
FI872367A7 (fi) Menetelmä N-metyylimorfoliini-N-oksidin vesiliuoksen valmistamiseksi.
IT1124738B (it) Membrane semipermeabili costituite da copoliammidi e procedimento per la loro preparazione
IT8149622A0 (it) Membrana di cellulosa microporosa eprocedimento per la sua produzione
NL7903451A (nl) Ultrafiltratiemembranen en werkwijze ter vervaardiging daarvan.
GB2065546B (en) Cellulose semipermeable hollow fibres and method for making same
IT7950414A0 (it) Perfezionamento nelle membrane di dialisi in cellulosa e procedimentodi produzione
IT8019476A0 (it) Membrane di cellulosa rigenerata al cuprammonio e metodo di preparazione delle stesse.
DE2860327D1 (en) Viscose membrane for dialysis, especially for hemodialysis, and process for its fabrication
DD137950A5 (de) Celluloseacetat-hohlfasern und verfahren zu ihrer herstellung
IT1085160B (it) Membrane semipermeabili e procedimento per la loro produzione
JPS5549108A (en) Dialysis membrane in hollow fiber type cellulose and its preparation
IT7950416A0 (it) Perfezionamento nelle membrane di dialisi in cellulosa e procedimentodi preparazione
NL7802525A (nl) Vast farmaceutisch preparaat en werkwijze ter bereiding daarvan.