ES475850A1 - 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
ES475850A1
ES475850A1 ES475850A ES475850A ES475850A1 ES 475850 A1 ES475850 A1 ES 475850A1 ES 475850 A ES475850 A ES 475850A ES 475850 A ES475850 A ES 475850A ES 475850 A1 ES475850 A1 ES 475850A1
Authority
ES
Spain
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.)
Expired
Application number
ES475850A
Other languages
Spanish (es)
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 ES475850A1 publication Critical patent/ES475850A1/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

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.
ES475850A 1977-12-09 1978-12-07 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 ES475850A1 (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 (1)

Publication Number Publication Date
ES475850A1 true ES475850A1 (en) 1980-01-16

Family

ID=27420400

Family Applications (1)

Application Number Title Priority Date Filing Date
ES475850A Expired ES475850A1 (en) 1977-12-09 1978-12-07 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)

Families Citing this family (20)

* 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
JPS55148777A (en) * 1979-05-04 1980-11-19 Asahi Glass Co Ltd Manufacture of caustic alkali
JPS55161081A (en) * 1979-06-01 1980-12-15 Asahi Glass Co Ltd Electrolytic cell
GB2051870B (en) * 1979-06-07 1983-04-20 Asahi Chemical Ind Method for electrolysis of aqueous alkali metal chloride solution
JPS5620178A (en) * 1979-07-30 1981-02-25 Asahi Glass Co Ltd Closely sticking method for ion exchange membrane and electrode
JPS5827352B2 (en) * 1979-08-31 1983-06-08 旭硝子株式会社 Manufacturing method of ion exchange membrane with electrode layer attached
JPS5655577A (en) * 1979-10-06 1981-05-16 Toyo Soda Mfg Co Ltd Electrolyzing method for alkali metal halide
US4315805A (en) * 1979-11-08 1982-02-16 Ppg Industries, Inc. Solid polymer electrolyte chlor-alkali process
US4342629A (en) * 1979-11-08 1982-08-03 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
US4293394A (en) * 1980-03-31 1981-10-06 Ppg Industries, Inc. Electrolytically producing chlorine using a solid polymer electrolyte-cathode unit
JPS57500514A (en) * 1980-05-02 1982-03-25
US4289591A (en) * 1980-05-02 1981-09-15 General Electric Company Oxygen evolution with improved Mn stabilized catalyst
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
US4421579A (en) * 1981-06-26 1983-12-20 Diamond Shamrock Corporation Method of making 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
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

Also Published As

Publication number Publication date
SE7812640L (en) 1979-08-02
MX151431A (en) 1984-11-21
DD140262A5 (en) 1980-02-20
RO83322B (en) 1984-08-30
DE2844496A1 (en) 1979-06-13
NL7811997A (en) 1979-06-12
DE2844496C2 (en) 1982-12-30
NL186261B (en) 1990-05-16
JPS54112398A (en) 1979-09-03
NL186261C (en) 1990-10-16
GB2009795B (en) 1982-08-04
IT1101513B (en) 1985-09-28
IT7830451A0 (en) 1978-12-01
CH650031A5 (en) 1985-06-28
FR2411249A1 (en) 1979-07-06
GB2009795A (en) 1979-06-20
JPS616156B2 (en) 1986-02-24
SE453602B (en) 1988-02-15
FR2411249B1 (en) 1983-01-07
RO83322A (en) 1984-06-21

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000301