FR2444058A2 - Ion exchange membranes for electrolysis cells - of poly:fluoroolefin film and asbestos fibres impregnated with (meth)acrylic! acid copolymer - Google Patents

Ion exchange membranes for electrolysis cells - of poly:fluoroolefin film and asbestos fibres impregnated with (meth)acrylic! acid copolymer

Info

Publication number
FR2444058A2
FR2444058A2 FR7835034A FR7835034A FR2444058A2 FR 2444058 A2 FR2444058 A2 FR 2444058A2 FR 7835034 A FR7835034 A FR 7835034A FR 7835034 A FR7835034 A FR 7835034A FR 2444058 A2 FR2444058 A2 FR 2444058A2
Authority
FR
France
Prior art keywords
meth
esp
film
ion exchange
asbestos fibres
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.)
Granted
Application number
FR7835034A
Other languages
French (fr)
Other versions
FR2444058B2 (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.)
Chloe Chimie SA
Original Assignee
Chloe Chimie SA
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 Chloe Chimie SA filed Critical Chloe Chimie SA
Priority to FR7835034A priority Critical patent/FR2444058A2/en
Priority to EP79400140A priority patent/EP0004237A1/en
Priority to IL56860A priority patent/IL56860A0/en
Priority to NO790827A priority patent/NO152457C/en
Priority to AU45048/79A priority patent/AU4504879A/en
Priority to ES478573A priority patent/ES478573A1/en
Priority to BR7901549A priority patent/BR7901549A/en
Priority to AT0188279A priority patent/AT364894B/en
Priority to JP54029255A priority patent/JPS5927768B2/en
Priority to CA323,412A priority patent/CA1125464A/en
Publication of FR2444058A2 publication Critical patent/FR2444058A2/en
Application granted granted Critical
Publication of FR2444058B2 publication Critical patent/FR2444058B2/fr
Priority to US06/538,473 priority patent/US4547411A/en
Granted legal-status Critical Current

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
    • C08J5/2275—Heterogeneous membranes
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Metallurgy (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

Ion exchange membranes, esp. for use in the electrolysis of saline solns., are comprised of a polyfluoroolefin film and asbestos fibres impregnated with a copolymer of (meth)acrylic acid and >=1 other non-ionic monomer contg. >=1 >C=CH2 gp. Pref. membranes consist of a homo- or copolymer of tetrafluoroethylene or perfluoropropylene and chrysotile asbestos fibres 0.5 mm - 5 cm long, esp. 1 mm - 2 cm long, in a wt. ratio polyfluoroolefin + asbestos to the whole membrane of 20-60%, esp. 25-40%. The membrane is pref. in the form of a microporous membrane with pores of 0.1-12 mu, esp. 0.2-6 mu dia. filled with the (meth)acrylic acid copolymer. The membranes have excellent corrosion resistance and give a high electrical yield in NaCl electrolysis cells, whilst giving NaOH with a low chloride content.
FR7835034A 1978-03-14 1978-12-13 Ion exchange membranes for electrolysis cells - of poly:fluoroolefin film and asbestos fibres impregnated with (meth)acrylic! acid copolymer Granted FR2444058A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR7835034A FR2444058A2 (en) 1978-12-13 1978-12-13 Ion exchange membranes for electrolysis cells - of poly:fluoroolefin film and asbestos fibres impregnated with (meth)acrylic! acid copolymer
EP79400140A EP0004237A1 (en) 1978-03-14 1979-03-06 Ion exchange membranes; their preparation and their use in the electrolysis of sodium chloride
IL56860A IL56860A0 (en) 1978-03-14 1979-03-11 Ion exchange membranes,process for their preparation and the utilization thereof in electrolysis
NO790827A NO152457C (en) 1978-03-14 1979-03-12 ION EXCHANGE MEMBRANE FOR ELECTROLYZE OF SALT SOLUTIONS AND PROCEDURE FOR ITS PREPARATION
ES478573A ES478573A1 (en) 1978-03-14 1979-03-13 their preparation and their use in the electrolysis of sodium chloride.
BR7901549A BR7901549A (en) 1978-12-13 1979-03-13 MEMBRANES FOR ELECTROLYSIS AND PROCESS FOR ITS PREPARATION
AU45048/79A AU4504879A (en) 1978-03-14 1979-03-13 Membranes
AT0188279A AT364894B (en) 1978-03-14 1979-03-13 ION EXCHANGE MEMBRANE AND METHOD FOR THEIR PRODUCTION
JP54029255A JPS5927768B2 (en) 1978-03-14 1979-03-13 Ion exchange membrane, its manufacturing method and usage method
CA323,412A CA1125464A (en) 1978-03-14 1979-03-14 Membranes
US06/538,473 US4547411A (en) 1978-03-14 1983-10-03 Process for preparing ion-exchange membranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7835034A FR2444058A2 (en) 1978-12-13 1978-12-13 Ion exchange membranes for electrolysis cells - of poly:fluoroolefin film and asbestos fibres impregnated with (meth)acrylic! acid copolymer

Publications (2)

Publication Number Publication Date
FR2444058A2 true FR2444058A2 (en) 1980-07-11
FR2444058B2 FR2444058B2 (en) 1983-07-18

Family

ID=9216040

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835034A Granted FR2444058A2 (en) 1978-03-14 1978-12-13 Ion exchange membranes for electrolysis cells - of poly:fluoroolefin film and asbestos fibres impregnated with (meth)acrylic! acid copolymer

Country Status (2)

Country Link
BR (1) BR7901549A (en)
FR (1) FR2444058A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB860405A (en) * 1956-05-02 1961-02-01 Ti Group Services Ltd Permselective membranes
FR1441092A (en) * 1964-07-22 1966-06-03 Ionics Process for the manufacture of ion exchange membranes, as well as membranes conforming to those obtained by the present process or similar process and the apparatus provided with said membranes
CH422306A (en) * 1962-08-06 1966-10-15 Wacker Chemie Gmbh Process for the production of lumpy shaped bodies containing porous ion exchangers
GB1123909A (en) * 1965-12-30 1968-08-14 Permutit Co Ltd Ion-exchange materials
US3817772A (en) * 1969-02-25 1974-06-18 Sybron Corp Semi-permeable membranes and method of production

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB860405A (en) * 1956-05-02 1961-02-01 Ti Group Services Ltd Permselective membranes
CH422306A (en) * 1962-08-06 1966-10-15 Wacker Chemie Gmbh Process for the production of lumpy shaped bodies containing porous ion exchangers
FR1441092A (en) * 1964-07-22 1966-06-03 Ionics Process for the manufacture of ion exchange membranes, as well as membranes conforming to those obtained by the present process or similar process and the apparatus provided with said membranes
GB1123909A (en) * 1965-12-30 1968-08-14 Permutit Co Ltd Ion-exchange materials
US3817772A (en) * 1969-02-25 1974-06-18 Sybron Corp Semi-permeable membranes and method of production

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA1976 *

Also Published As

Publication number Publication date
FR2444058B2 (en) 1983-07-18
BR7901549A (en) 1979-10-16

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