GB1526118A - Membrane for inverse osmosis and method for its manufacture - Google Patents

Membrane for inverse osmosis and method for its manufacture

Info

Publication number
GB1526118A
GB1526118A GB35206/76A GB3520676A GB1526118A GB 1526118 A GB1526118 A GB 1526118A GB 35206/76 A GB35206/76 A GB 35206/76A GB 3520676 A GB3520676 A GB 3520676A GB 1526118 A GB1526118 A GB 1526118A
Authority
GB
United Kingdom
Prior art keywords
membrane
copolymer
solvent
layer
immersing
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.)
Expired
Application number
GB35206/76A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fiat SpA
Original Assignee
Fiat SpA
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 Fiat SpA filed Critical Fiat SpA
Publication of GB1526118A publication Critical patent/GB1526118A/en
Expired legal-status Critical Current

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
    • B01D71/30—Polyalkenyl halides
    • B01D71/301—Polyvinylchloride
    • 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
    • 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
    • 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
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/0233—Asymmetric membranes with clearly distinguishable layers

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)
GB35206/76A 1975-09-11 1976-08-24 Membrane for inverse osmosis and method for its manufacture Expired GB1526118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69263/75A IT1047997B (it) 1975-09-11 1975-09-11 Membrana per osmosi inversa e procedimento per la sua fabbricazione

Publications (1)

Publication Number Publication Date
GB1526118A true GB1526118A (en) 1978-09-27

Family

ID=11311696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35206/76A Expired GB1526118A (en) 1975-09-11 1976-08-24 Membrane for inverse osmosis and method for its manufacture

Country Status (6)

Country Link
DE (1) DE2638016C3 (https=)
DK (1) DK403876A (https=)
FR (1) FR2323726A1 (https=)
GB (1) GB1526118A (https=)
IT (1) IT1047997B (https=)
SE (1) SE7609167L (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013000655A (ja) * 2011-06-16 2013-01-07 Sekisui Chem Co Ltd 高分子水処理膜及び水処理方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396091A (en) * 1971-02-18 1975-05-29 Babcock & Wilcox Ltd Semi-permeable membranes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013000655A (ja) * 2011-06-16 2013-01-07 Sekisui Chem Co Ltd 高分子水処理膜及び水処理方法

Also Published As

Publication number Publication date
DE2638016C3 (de) 1982-04-15
FR2323726B1 (https=) 1980-12-26
DK403876A (da) 1977-03-12
SE7609167L (sv) 1977-03-12
FR2323726A1 (fr) 1977-04-08
DE2638016A1 (de) 1977-07-28
DE2638016B2 (de) 1981-04-30
IT1047997B (it) 1980-10-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee