NL7501763A - Anionic ionic-exchange membrane for electrodialysis - comprises a crosslinked vinyl imidazole polymer or copolymer - Google Patents

Anionic ionic-exchange membrane for electrodialysis - comprises a crosslinked vinyl imidazole polymer or copolymer

Info

Publication number
NL7501763A
NL7501763A NL7501763A NL7501763A NL7501763A NL 7501763 A NL7501763 A NL 7501763A NL 7501763 A NL7501763 A NL 7501763A NL 7501763 A NL7501763 A NL 7501763A NL 7501763 A NL7501763 A NL 7501763A
Authority
NL
Netherlands
Prior art keywords
electrodialysis
copolymer
organic
vinyl imidazole
exchange membrane
Prior art date
Application number
NL7501763A
Other languages
Dutch (nl)
Other versions
NL163240C (en
NL163240B (en
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
Application filed by Asahi Chemical Ind filed Critical Asahi Chemical Ind
Priority to NL7501763A priority Critical patent/NL163240C/en
Publication of NL7501763A publication Critical patent/NL7501763A/en
Publication of NL163240B publication Critical patent/NL163240B/en
Application granted granted Critical
Publication of NL163240C publication Critical patent/NL163240C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • C08J5/2218—Synthetic macromolecular compounds
    • C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
    • C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08J2379/06—Polyhydrazides; Polytriazoles; Polyamino-triazoles; Polyoxadiazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

An anionic ion-exchange membrane comprises a film of a crosslinked vinyl imidazole polymer or copolymer. The membrane has an anionic transport no. of 0.6 or more, a spec. electric conductivity of 0.5 x 10-3 to 20 x 10-3 -1 cm-1 (at 25 degrees C in 0.5N aq. NaCl soln.) and a resistance to organic contamination which is 10 mins or more measured as the time needed before the electrodialysis voltage becomes twice that at the start when 0.5 N aq. NaCl. soln. containing 10 ppm sodium dodecyl benzene sulphonate is subjected to electrodialysis at current density of 1.1 A/dm2. Used in the treatment of organic contaminants present in electrolyte solns., e.g. sewage water, sewage treatment water, whey, milk, plating liquids, electrostatic coating liquids and other organic electrolyte solns. The anion exchange membranes have excellent resistance to organic contamination as well as excellent electrochemical, mechanical and chemical props. Long-term economical operation using the membranes in an electrodialyis operation is possible.
NL7501763A 1975-02-14 1975-02-14 METHOD FOR MANUFACTURING AN ANION-EXCHANGE MEMBRANE NL163240C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7501763A NL163240C (en) 1975-02-14 1975-02-14 METHOD FOR MANUFACTURING AN ANION-EXCHANGE MEMBRANE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7501763A NL163240C (en) 1975-02-14 1975-02-14 METHOD FOR MANUFACTURING AN ANION-EXCHANGE MEMBRANE

Publications (3)

Publication Number Publication Date
NL7501763A true NL7501763A (en) 1976-08-17
NL163240B NL163240B (en) 1980-03-17
NL163240C NL163240C (en) 1980-08-15

Family

ID=19823184

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7501763A NL163240C (en) 1975-02-14 1975-02-14 METHOD FOR MANUFACTURING AN ANION-EXCHANGE MEMBRANE

Country Status (1)

Country Link
NL (1) NL163240C (en)

Also Published As

Publication number Publication date
NL163240C (en) 1980-08-15
NL163240B (en) 1980-03-17

Similar Documents

Publication Publication Date Title
US3562139A (en) Cationic-anionic ion-exchange membrane
FR2337163B1 (en)
Strathmann Ion-exchange membrane separation processes
US4169023A (en) Electrolytic diaphragms, and method of electrolysis using the same
FR2399457B3 (en)
US2799644A (en) Apparatus for transferring electrolytes from one solution into another
JPS5725331A (en) Improved sulfonic acid type electric cell membrane
FR2259922A1 (en) Electrolytic diaphragms based on fluorine-contg cation-exchanger - with a neutral or anion-exchanging sec layer
US3821127A (en) Anion exchange membranes and method of their production
FR2485395B1 (en) CATION EXCHANGE MEMBRANE, MANUFACTURING METHOD THEREOF AND APPLICATION AS A SOLID ELECTROLYTE
JPS527390A (en) High normality ion exchange materials and its manufacture
US2752306A (en) Production of drinking water
Sata et al. Modification of the transport properties of ion exchange membranes. XII. Ionic composition in cation exchange membranes with and without a cationic polyelectrolyte layer at equilibrium and during electrodialysis
US4166014A (en) Electrolytic diaphragms, and method of electrolysis using the same
US2858264A (en) Selective cation-permeable barriers
US3231485A (en) Process for purifying amino acids
FR2300595A1 (en) Anionic ionic-exchange membrane for electrodialysis - comprises a crosslinked vinyl imidazole polymer or copolymer
US4806219A (en) Method of double decomposition of neutral salt
IT1031717B (en) Anionic ionic-exchange membrane for electrodialysis - comprises a crosslinked vinyl imidazole polymer or copolymer
US3240723A (en) Battery separators containing sulfonamide groups
NL7501763A (en) Anionic ionic-exchange membrane for electrodialysis - comprises a crosslinked vinyl imidazole polymer or copolymer
US4585536A (en) Ion exchange membranes consisting of pyrrole polymers
Gavach et al. Selectivity of ion transfer in carboxylic ion exchange membranes: Part I. Transport numbers of K+, Na+ and Cl− in the S18 saft membrane
US3004909A (en) Electropositive selective permeable membrane and method of production
US3227662A (en) Antipolarization membrane having anionic and cationic areas

Legal Events

Date Code Title Description
V4 Lapsed because of reaching the maxim lifetime of a patent