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 membraneInfo
- 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
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. <IMAGE>
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)
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)
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 |
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 |
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 |
EP0226911B1 (en) * | 1985-12-09 | 1990-07-25 | The Dow Chemical Company | An improved solid polymer electrolyte electrode |
Family Cites Families (13)
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 |
-
1978
- 1978-10-12 DE DE2844496A patent/DE2844496C2/en not_active Expired
- 1978-10-27 GB GB7842323A patent/GB2009795B/en not_active Expired
- 1978-12-01 IT IT30451/78A patent/IT1101513B/en active
- 1978-12-04 DD DD78209498A patent/DD140262A5/en not_active IP Right Cessation
- 1978-12-05 CH CH12422/78A patent/CH650031A5/en not_active IP Right Cessation
- 1978-12-07 ES ES475850A patent/ES475850A1/en not_active Expired
- 1978-12-08 MX MX175933A patent/MX151431A/en unknown
- 1978-12-08 SE SE7812640A patent/SE453602B/en not_active IP Right Cessation
- 1978-12-08 NL NLAANVRAGE7811997,A patent/NL186261C/en not_active IP Right Cessation
- 1978-12-08 FR FR7834645A patent/FR2411249A1/en active Granted
- 1978-12-08 JP JP15117378A patent/JPS54112398A/en active Granted
- 1978-12-09 RO RO95848A patent/RO83322B/en unknown
Cited By (14)
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 |
---|---|
NL186261C (en) | 1990-10-16 |
GB2009795B (en) | 1982-08-04 |
JPS54112398A (en) | 1979-09-03 |
SE7812640L (en) | 1979-08-02 |
CH650031A5 (en) | 1985-06-28 |
SE453602B (en) | 1988-02-15 |
NL7811997A (en) | 1979-06-12 |
MX151431A (en) | 1984-11-21 |
DE2844496A1 (en) | 1979-06-13 |
IT1101513B (en) | 1985-09-28 |
FR2411249B1 (en) | 1983-01-07 |
ES475850A1 (en) | 1980-01-16 |
RO83322A (en) | 1984-06-21 |
JPS616156B2 (en) | 1986-02-24 |
RO83322B (en) | 1984-08-30 |
IT7830451A0 (en) | 1978-12-01 |
DD140262A5 (en) | 1980-02-20 |
NL186261B (en) | 1990-05-16 |
DE2844496C2 (en) | 1982-12-30 |
FR2411249A1 (en) | 1979-07-06 |
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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 |