GB1487284A - Electrolysis - Google Patents
ElectrolysisInfo
- Publication number
- GB1487284A GB1487284A GB9388/75A GB938875A GB1487284A GB 1487284 A GB1487284 A GB 1487284A GB 9388/75 A GB9388/75 A GB 9388/75A GB 938875 A GB938875 A GB 938875A GB 1487284 A GB1487284 A GB 1487284A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- cathode
- plate
- gas
- chamber
- 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
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
- C25B1/34—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
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
-
- 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
- C25B3/00—Electrolytic production of organic compounds
-
- 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
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
- C25B9/77—Assemblies comprising two or more cells of the filter-press type having diaphragms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
1487284 Electrolysis in diaphragm cells ASAHI KASEI KOGYO KK 6 March 1975 [9 March 1974 30 Sept 1974 10 Dec 1974] 9388/75 Heading C7B In a process for electrolysis of an aqueous electrolyte solution, e.g. for producing NaOH, Cl 2 and H 2 from saline water, LiOH, KOH, I 2 , Br2, HClO 3 , HBrO 3 , H 2 S 2 O 8 , or adiponitrile from acrylonitrile, in a diaphragm cell having a cation exchange membrane 1 to partition the cell into a cathode and an anode chamber, in which gas is generated at least at the anode 2, the internal pressure in the cathode is kept higher (e.g. 0À2 to 5m water column) than that in the anode chamber to press the membrane towards the anode, e.g. by discharging the gas generated at the anode, (such as Cl 2 ) backwardly of the anode; with gases generated being discharged backwardly of the respective electrodes the cathode chamber is larger in volume than the anode chamber. Preferably gas permeable metallic plates are used as anode and cathode, e.g. expanded, multi-rod, perforated sheet or mesh of noble metal (e.g. Ru with or without Ti) oxide coated Ti for the anode and Ni (alloy or thiocyanate) plated Fe for the cathode. As shown (Fig. 1) the anode 2 may be carried by supports 71 on a partition wall 72 (of explosion-bonded Ti and Fe plates), between the gas-ascending space and downcomer 113, spaced from the partition 111 by distance piece 73 and connected by conductor rod 112. Mineral acid, e.g. HCl, H 2 SO 4 or HNO 3 , may be added to the anolyte to maintain the pH at or below 3À5. Bipolar electrodes may be used Fig. 4 (not shown): anode 2, a Ti plate coated with (mole per cent) 55 RuO 2 -40, TiO 2 -5ZrO 2 , joined to cathode 3, an expanded Fe plate, via Ti and Fe ribs 7, 9 and a partition wall 4 formed by explosion-bonding Ti plate 5 onto Fe plate 6. NaCl and NaOH solutions are charged into anode and cathode chambers 8, 10 via nozzles 13, 15, and Cl 2 and H 2 gases are discharged via nozzles 14, 16. The anolytes and catholytes may be recycled. The cation exchange membrane may be a polymer of perfluorosulphonic acid compound, sulphonated styrene-divinyl benzene, acrylic acid-divinyl benzene, or a phosphoric acid type membrane.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49026775A JPS50120493A (en) | 1974-03-09 | 1974-03-09 | |
| JP11255674 | 1974-09-30 | ||
| JP14174574A JPS5168477A (en) | 1974-12-10 | 1974-12-10 | Kairyosareta denkaihoho |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1487284A true GB1487284A (en) | 1977-09-28 |
Family
ID=27285534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9388/75A Expired GB1487284A (en) | 1974-03-09 | 1975-03-06 | Electrolysis |
Country Status (8)
| Country | Link |
|---|---|
| BR (1) | BR7501374A (en) |
| CA (1) | CA1088456A (en) |
| DE (1) | DE2510396C3 (en) |
| FR (1) | FR2263034B1 (en) |
| GB (1) | GB1487284A (en) |
| IT (1) | IT1034107B (en) |
| NL (1) | NL169618C (en) |
| SE (1) | SE432447B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822460A (en) * | 1984-11-05 | 1989-04-18 | The Dow Chemical Company | Electrolytic cell and method of operation |
| CN118241225A (en) * | 2024-05-27 | 2024-06-25 | 山东菜央子盐场有限公司 | Method for extracting bromine from chlorine-free brine |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2658189C2 (en) * | 1976-12-22 | 1979-02-15 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the electrochemical production of olefin oxide |
| USRE30864E (en) | 1977-06-27 | 1982-02-09 | Olin Corporation | Process for electrolysis in a membrane cell employing pressure actuated uniform spacing |
| US4142950A (en) * | 1977-11-10 | 1979-03-06 | Basf Wyandotte Corporation | Apparatus and process for electrolysis using a cation-permselective membrane and turbulence inducing means |
| IT1118243B (en) * | 1978-07-27 | 1986-02-24 | Elche Ltd | MONOPOLAR ELECTROLYSIS CELL |
| DE2914870A1 (en) * | 1979-04-12 | 1980-10-30 | Hoechst Ag | METHOD FOR CHLORINE AND COOLING THE ANOLYTE OF ALKALI HALOGENIDE ELECTROLYSIS |
| US4265719A (en) * | 1980-03-26 | 1981-05-05 | The Dow Chemical Company | Electrolysis of aqueous solutions of alkali-metal halides employing a flexible polymeric hydraulically-impermeable membrane disposed against a roughened surface cathode |
| DK501485A (en) * | 1984-11-05 | 1986-05-06 | Dow Chemical Co | ELECTROLYTE CELL AND METHOD OF OPERATING THE SAME |
| GB9224372D0 (en) * | 1992-11-20 | 1993-01-13 | Ici Plc | Electrolytic cell and electrode therefor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1196631A (en) * | 1966-05-31 | 1970-07-01 | Monsanto Co | Electrolytic Diaphragm Cell |
| US3496077A (en) * | 1967-12-18 | 1970-02-17 | Hal B H Cooper | Electrolyzing of salt solutions |
| BE790369A (en) * | 1971-10-21 | 1973-04-20 | Diamond Shamrock Corp | METHOD AND APPARATUS FOR THE PREPARATION OF HYDROXIDES FROM HIGH PURE ALKALINE METALS IN AN ELECTROLYTIC TANK. |
-
1975
- 1975-03-06 SE SE7502502A patent/SE432447B/en not_active IP Right Cessation
- 1975-03-06 GB GB9388/75A patent/GB1487284A/en not_active Expired
- 1975-03-07 BR BR1374/75A patent/BR7501374A/en unknown
- 1975-03-07 NL NLAANVRAGE7502738,A patent/NL169618C/en not_active IP Right Cessation
- 1975-03-07 IT IT21049/75A patent/IT1034107B/en active
- 1975-03-07 FR FR7507198A patent/FR2263034B1/fr not_active Expired
- 1975-03-07 CA CA221,570A patent/CA1088456A/en not_active Expired
- 1975-03-10 DE DE2510396A patent/DE2510396C3/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822460A (en) * | 1984-11-05 | 1989-04-18 | The Dow Chemical Company | Electrolytic cell and method of operation |
| CN118241225A (en) * | 2024-05-27 | 2024-06-25 | 山东菜央子盐场有限公司 | Method for extracting bromine from chlorine-free brine |
Also Published As
| Publication number | Publication date |
|---|---|
| SE432447B (en) | 1984-04-02 |
| IT1034107B (en) | 1979-09-10 |
| SE7502502L (en) | 1975-09-10 |
| NL7502738A (en) | 1975-09-11 |
| CA1088456A (en) | 1980-10-28 |
| DE2510396B2 (en) | 1980-04-17 |
| NL169618C (en) | 1982-08-02 |
| FR2263034B1 (en) | 1978-03-17 |
| FR2263034A1 (en) | 1975-10-03 |
| DE2510396A1 (en) | 1975-09-11 |
| DE2510396C3 (en) | 1987-01-22 |
| NL169618B (en) | 1982-03-01 |
| BR7501374A (en) | 1976-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950305 |