GB1457870A - Membrane - Google Patents

Membrane

Info

Publication number
GB1457870A
GB1457870A GB3494772A GB3494772A GB1457870A GB 1457870 A GB1457870 A GB 1457870A GB 3494772 A GB3494772 A GB 3494772A GB 3494772 A GB3494772 A GB 3494772A GB 1457870 A GB1457870 A GB 1457870A
Authority
GB
United Kingdom
Prior art keywords
cellulose acetate
web
ferrocyanide
membrane
aqueous solution
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
GB3494772A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3494772A priority Critical patent/GB1457870A/en
Publication of GB1457870A publication Critical patent/GB1457870A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D67/0079—Manufacture of membranes comprising organic and inorganic components
    • 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
    • B01D67/0039—Inorganic membrane manufacture
    • B01D67/0044—Inorganic membrane manufacture by chemical reaction
    • 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
    • B01D67/0039—Inorganic membrane manufacture
    • B01D67/0046—Inorganic membrane manufacture by slurry techniques, e.g. die or slip-casting
    • 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
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • 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
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/148—Organic/inorganic mixed matrix membranes
    • 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
    • B01D71/02—Inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/46—Impregnation
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1457870 Cellulose acetate webs H X D PEDROSA 18 Oct 1973 [26 July 1972] 34947/72 Heading B5B [Also in Divisions C3 and B1] A semipermeable membrane of cellulose acetate has cupric ferrocyanide uniformly distributed throughout the thickness of the membrane and may also possess a series of fibres or channels extending the length or breadth thereof and extending beyond one edge. The membrane may be produced by one of the following methods:- (a) soaking a web of cellulose acetate in an aqueous solution of cupric ferrocyanide, which may contain acetone, and then drying the web; (b) forming a mixture of cellulose acetate, cupric ferrocyanide, water and optionally acetone, pouring the mixture in a vessel and removing the solvent to form the web; (c) placing a bag of cellulose acetate containing an aqueous solution of CuSO 4 in a vessel containing an aqueous solution of potassium ferrocyanide whereby the solutions diffuse into the web from either side and react to form cupric ferrocyanide.
GB3494772A 1972-07-26 1972-07-26 Membrane Expired GB1457870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3494772A GB1457870A (en) 1972-07-26 1972-07-26 Membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3494772A GB1457870A (en) 1972-07-26 1972-07-26 Membrane

Publications (1)

Publication Number Publication Date
GB1457870A true GB1457870A (en) 1976-12-08

Family

ID=10371949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3494772A Expired GB1457870A (en) 1972-07-26 1972-07-26 Membrane

Country Status (1)

Country Link
GB (1) GB1457870A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220112102A1 (en) * 2020-10-13 2022-04-14 Robert Bosch Gmbh Desalination cell electrodes including prussian blue compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220112102A1 (en) * 2020-10-13 2022-04-14 Robert Bosch Gmbh Desalination cell electrodes including prussian blue compounds

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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