CH577837A5 - - Google Patents

Info

Publication number
CH577837A5
CH577837A5 CH233672A CH233672A CH577837A5 CH 577837 A5 CH577837 A5 CH 577837A5 CH 233672 A CH233672 A CH 233672A CH 233672 A CH233672 A CH 233672A CH 577837 A5 CH577837 A5 CH 577837A5
Authority
CH
Switzerland
Application number
CH233672A
Original Assignee
Babcock & Wilcox 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 Babcock & Wilcox Ltd filed Critical Babcock & Wilcox Ltd
Publication of CH577837A5 publication Critical patent/CH577837A5/xx

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
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
    • 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
    • B01D67/00091—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching by evaporation
    • 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
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/02—Hydrophilization
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
CH233672A 1971-02-18 1972-02-18 CH577837A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB489771A GB1396091A (en) 1971-02-18 1971-02-18 Semi-permeable membranes

Publications (1)

Publication Number Publication Date
CH577837A5 true CH577837A5 (enrdf_load_stackoverflow) 1976-07-30

Family

ID=9785936

Family Applications (1)

Application Number Title Priority Date Filing Date
CH233672A CH577837A5 (enrdf_load_stackoverflow) 1971-02-18 1972-02-18

Country Status (4)

Country Link
CH (1) CH577837A5 (enrdf_load_stackoverflow)
DE (1) DE2207656A1 (enrdf_load_stackoverflow)
FR (1) FR2125586B1 (enrdf_load_stackoverflow)
GB (1) GB1396091A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1047997B (it) * 1975-09-11 1980-10-20 Fiat Spa Membrana per osmosi inversa e procedimento per la sua fabbricazione
JPS5938805B2 (ja) * 1979-04-06 1984-09-19 ダイセル化学工業株式会社 選択透過性を有する半透膜の製法
GB2130069A (en) * 1982-08-06 1984-05-31 Foremost Mckesson Whey treatment process and product

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060357B (de) * 1958-10-15 1959-07-02 Dr Alexander Goetz Verfahren und Vorrichtung zur Herstellung von mikroporoesen Filterfilmen
CH407949A (de) * 1960-03-16 1966-02-28 Membranfiltergesellschaft Gmbh Verfahren und Vorrichtung zur Herstellung von Membranfiltern
US3344214A (en) * 1964-03-25 1967-09-26 Univ California Methods of preparing a semipermeable membrane
GB1238180A (enrdf_load_stackoverflow) * 1967-09-21 1971-07-07
US3666508A (en) * 1968-05-22 1972-05-30 Univ California High flux semipermeable cellulosic derivative membranes with dry handling capabilities and their method of preparation
NL171534C (nl) * 1970-06-16 1983-04-18 Monsanto Co Werkwijze voor het afscheiden van water uit mengsels die water en formaldehyd bevatten.
NL170374C (nl) * 1970-06-16 1982-11-01 Monsanto Co Werkwijze voor het afscheiden van water uit mengsels van water en formaldehyd.
FR2105502A5 (enrdf_load_stackoverflow) * 1970-09-09 1972-04-28 Rhone Poulenc Sa

Also Published As

Publication number Publication date
FR2125586B1 (enrdf_load_stackoverflow) 1977-09-02
GB1396091A (en) 1975-05-29
DE2207656A1 (de) 1972-09-07
FR2125586A1 (enrdf_load_stackoverflow) 1972-09-29

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased