GB2009795A - Production of halogens by electrolysis of alkali metal halides in an electrolysis cell having catalytic electrodes bonded to the surface of a solid polymer electrolyte membrane - Google Patents

Production of halogens by electrolysis of alkali metal halides in an electrolysis cell having catalytic electrodes bonded to the surface of a solid polymer electrolyte membrane

Info

Publication number
GB2009795A
GB2009795A GB7842323A GB7842323A GB2009795A GB 2009795 A GB2009795 A GB 2009795A GB 7842323 A GB7842323 A GB 7842323A GB 7842323 A GB7842323 A GB 7842323A GB 2009795 A GB2009795 A GB 2009795A
Authority
GB
United Kingdom
Prior art keywords
anode
electrolysis
cell
cathode
alkali metal
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
GB7842323A
Other versions
GB2009795B (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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from US05/922,316 external-priority patent/US4224121A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB2009795A publication Critical patent/GB2009795A/en
Application granted granted Critical
Publication of GB2009795B publication Critical patent/GB2009795B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • 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
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
    • 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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
    • C25B11/095—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds at least one of the compounds being organic
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded

Abstract

A halogen, such as chlorine, is generated by electrolysis of an aqueous solution of an alkali metal halide such as sodium chloride, in a cell having anolyte and catholyte chambers separated by a solid polymer electrolyte in the form of a stable, selectively cation permeable, ion exchange membrane 13. One or more catalytic electrodes 14, 29 including at least one thermally stabilized, reduced oxide of a platinum group metal, optionally with oxide of a transition or valve metal and graphite are bonded to the surface of the membrane. An aqueous brine solution is brought into contact with the anode and water or an aqueous NaOH solution is brought into contact with the cathode. The brine is electrolyzed to produce chlorine at the anode and hydrogen and caustic at the cathode. The cell membrane preferably has an anion rejecting cathode side barrier layer which rejects hydroxyl ions to block back migration of caustic to the anode thereby enhancing the cathode current efficiency of the cell and of the process. The catalytic anode is preferably gas permeable, comprising particles of the thermally stabilized, reduced oxides bonded together by a fluorocarbon polymer. <IMAGE>
GB7842323A 1977-12-09 1978-10-27 Production of halogens by electrolysis of alkali metal halides in an electrolysis cell having catalytic electrodes bonded to the surface of a solid polymer electrolyte membrane Expired GB2009795B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85895977A 1977-12-09 1977-12-09
US89250078A 1978-04-03 1978-04-03
US05/922,316 US4224121A (en) 1978-07-06 1978-07-06 Production of halogens by electrolysis of alkali metal halides in an electrolysis cell having catalytic electrodes bonded to the surface of a solid polymer electrolyte membrane

Publications (2)

Publication Number Publication Date
GB2009795A true GB2009795A (en) 1979-06-20
GB2009795B GB2009795B (en) 1982-08-04

Family

ID=27420400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7842323A Expired GB2009795B (en) 1977-12-09 1978-10-27 Production of halogens by electrolysis of alkali metal halides in an electrolysis cell having catalytic electrodes bonded to the surface of a solid polymer electrolyte membrane

Country Status (12)

Country Link
JP (1) JPS54112398A (en)
CH (1) CH650031A5 (en)
DD (1) DD140262A5 (en)
DE (1) DE2844496C2 (en)
ES (1) ES475850A1 (en)
FR (1) FR2411249A1 (en)
GB (1) GB2009795B (en)
IT (1) IT1101513B (en)
MX (1) MX151431A (en)
NL (1) NL186261C (en)
RO (1) RO83322B (en)
SE (1) SE453602B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026969A2 (en) * 1979-07-30 1981-04-15 Asahi Glass Company Ltd. Method of bonding electrode to cation exchange membrane
EP0026979A2 (en) * 1979-08-31 1981-04-15 Asahi Glass Company Ltd. Electrolytic cell and process for producing an alkali metal hydroxide and chlorine
FR2467247A1 (en) * 1979-10-06 1981-04-17 Toyo Soda Mfg Co Ltd PROCESS FOR ELECTROLYSIS OF ALKALI METAL HALIDES
FR2479271A1 (en) * 1980-03-31 1981-10-02 Ppg Industries Inc ELECTROLYTIC CELL WITH SOLID POLYMER ELECTROLYTE COMPRISING A PERMIONIC MEMBRANE AND ELECTROLYSIS METHOD
US4297182A (en) * 1979-05-04 1981-10-27 Asahi Glass Company, Ltd. Production of alkali metal hydroxide
EP0039608A1 (en) * 1980-05-02 1981-11-11 De Nora Permelec S.P.A. Halogen evolution with improved anode catalyst
EP0040031A1 (en) * 1980-05-02 1981-11-18 General Electric Company Anode catalyst and generation of oxygen
EP0068444A2 (en) * 1981-06-26 1983-01-05 Eltech Systems Corporation Solid polymer electrolytes and electrode bonded with hydrophyllic fluorocopolymers
US4465533A (en) * 1983-01-13 1984-08-14 Eltech Systems Limited Method for making polymer bonded electrodes
US4526663A (en) * 1979-06-07 1985-07-02 Asahi Kasei Kogyo Kabushiki Kaisha Method for electrolysis of aqueous alkali metal chloride solution
EP0021625B1 (en) * 1979-06-01 1985-08-28 Asahi Glass Company Ltd. Electrolytic membrane cell

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551351B2 (en) * 1974-03-07 1980-01-12
US4209368A (en) * 1978-08-07 1980-06-24 General Electric Company Production of halogens by electrolysis of alkali metal halides in a cell having catalytic electrodes bonded to the surface of a porous membrane/separator
US4342629A (en) * 1979-11-08 1982-08-03 Ppg Industries, Inc. Solid polymer electrolyte chlor-alkali process
US4315805A (en) * 1979-11-08 1982-02-16 Ppg Industries, Inc. Solid polymer electrolyte chlor-alkali process
JPS56156783A (en) * 1980-05-06 1981-12-03 Asahi Glass Co Ltd Electrolytic cell for aqueous alkali chloride solution
JPS56112490A (en) * 1980-02-11 1981-09-04 Ppg Industries Inc Solid polymer electrolyte chlorine alkali process and electrolytic cell
DE3036066A1 (en) * 1980-09-25 1982-05-06 Hoechst Ag, 6000 Frankfurt Bonding electrode to fluorine contg. copolymer electrolysis membrane - by applying electrode powder to membrane and pressing opt. with heating
US4434116A (en) 1981-06-26 1984-02-28 Diamond Shamrock Corporation Method for making a porous fluorinated polymer structure
DE3672975D1 (en) * 1985-12-09 1990-08-30 Dow Chemical Co SOLID POLYMER ELECTROLYTE ELECTRODE.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134697A (en) * 1959-11-03 1964-05-26 Gen Electric Fuel cell
GB1004124A (en) * 1961-09-25 1965-09-08 Gen Electric Fuel cell
DE1546717C3 (en) * 1964-05-14 1974-06-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electrochemical cell
US3470019A (en) * 1965-02-04 1969-09-30 Matthey Bishop Inc Platinum coating composition,process and platinum-coated materials
NL6705604A (en) * 1967-04-21 1968-10-22
BE788557A (en) * 1971-09-09 1973-03-08 Ppg Industries Inc DIAPHRAGMS FOR ELECTROLYTIC CELLS
US4100050A (en) * 1973-11-29 1978-07-11 Hooker Chemicals & Plastics Corp. Coating metal anodes to decrease consumption rates
JPS526374A (en) * 1975-07-07 1977-01-18 Tokuyama Soda Co Ltd Anode structure for electrolysis
US4039409A (en) * 1975-12-04 1977-08-02 General Electric Company Method for gas generation utilizing platinum metal electrocatalyst containing 5 to 60% ruthenium
CA1087546A (en) * 1976-02-05 1980-10-14 Robert B. Macmullin Low voltage chlor-alkali ion exchange process for the production of chlorine
DE2741956A1 (en) * 1976-09-20 1978-03-23 Gen Electric ELECTROLYSIS OF SODIUM SULFATE USING AN ION EXCHANGE MEMBRANE CELL WITH SOLID ELECTROLYTE
DE2802257C2 (en) * 1977-01-21 1986-01-02 Studiecentrum voor Kernenergie, S.C.K., Brüssel/Bruxelles Membrane for an electrochemical cell and its use in an electrolysis device
IT1077612B (en) * 1977-02-07 1985-05-04 Nora Oronzo Impianti Elettroch BIPOLAR SEPTANT CONDUCTOR FOR ELECTROCHEMICAL CELLS AND PREPARATION METHOD

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4297182A (en) * 1979-05-04 1981-10-27 Asahi Glass Company, Ltd. Production of alkali metal hydroxide
EP0021625B1 (en) * 1979-06-01 1985-08-28 Asahi Glass Company Ltd. Electrolytic membrane cell
US4526663A (en) * 1979-06-07 1985-07-02 Asahi Kasei Kogyo Kabushiki Kaisha Method for electrolysis of aqueous alkali metal chloride solution
EP0026969A3 (en) * 1979-07-30 1981-08-26 Asahi Glass Company Ltd. Method of bonding electrode to cation exchange membrane
EP0026969A2 (en) * 1979-07-30 1981-04-15 Asahi Glass Company Ltd. Method of bonding electrode to cation exchange membrane
EP0026979A3 (en) * 1979-08-31 1981-09-02 Asahi Glass Company Ltd. Electrolytic cell and process for producing an alkali metal hydroxide and chlorine
EP0026979A2 (en) * 1979-08-31 1981-04-15 Asahi Glass Company Ltd. Electrolytic cell and process for producing an alkali metal hydroxide and chlorine
FR2467247A1 (en) * 1979-10-06 1981-04-17 Toyo Soda Mfg Co Ltd PROCESS FOR ELECTROLYSIS OF ALKALI METAL HALIDES
FR2479271A1 (en) * 1980-03-31 1981-10-02 Ppg Industries Inc ELECTROLYTIC CELL WITH SOLID POLYMER ELECTROLYTE COMPRISING A PERMIONIC MEMBRANE AND ELECTROLYSIS METHOD
EP0039608A1 (en) * 1980-05-02 1981-11-11 De Nora Permelec S.P.A. Halogen evolution with improved anode catalyst
EP0040031A1 (en) * 1980-05-02 1981-11-18 General Electric Company Anode catalyst and generation of oxygen
EP0068444A2 (en) * 1981-06-26 1983-01-05 Eltech Systems Corporation Solid polymer electrolytes and electrode bonded with hydrophyllic fluorocopolymers
EP0068444A3 (en) * 1981-06-26 1983-04-20 Eltech Systems Corporation Solid polymer electrolytes and electrode bonded with hydrophyllic fluorocopolymers
US4465533A (en) * 1983-01-13 1984-08-14 Eltech Systems Limited Method for making polymer bonded electrodes

Also Published As

Publication number Publication date
JPS616156B2 (en) 1986-02-24
CH650031A5 (en) 1985-06-28
MX151431A (en) 1984-11-21
DE2844496A1 (en) 1979-06-13
GB2009795B (en) 1982-08-04
FR2411249A1 (en) 1979-07-06
DD140262A5 (en) 1980-02-20
SE453602B (en) 1988-02-15
IT7830451A0 (en) 1978-12-01
IT1101513B (en) 1985-09-28
JPS54112398A (en) 1979-09-03
RO83322A (en) 1984-06-21
NL186261B (en) 1990-05-16
RO83322B (en) 1984-08-30
NL7811997A (en) 1979-06-12
ES475850A1 (en) 1980-01-16
SE7812640L (en) 1979-08-02
FR2411249B1 (en) 1983-01-07
NL186261C (en) 1990-10-16
DE2844496C2 (en) 1982-12-30

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941027