GB1435672A - Method of electrolysing alkali metal halide solution and apparatus therefor - Google Patents
Method of electrolysing alkali metal halide solution and apparatus thereforInfo
- Publication number
- GB1435672A GB1435672A GB1569574A GB1569574A GB1435672A GB 1435672 A GB1435672 A GB 1435672A GB 1569574 A GB1569574 A GB 1569574A GB 1569574 A GB1569574 A GB 1569574A GB 1435672 A GB1435672 A GB 1435672A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- alkali metal
- metal halide
- solution
- catholyte
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
1435672 Diaphragm cells for alkali metal halide electrolysis TOKUYAMA SODA KK 9 April 1974 [10 April 1973 17 Sept 1973] 15695/74 Heading C7B An alkali metal halide (e.g. NaCl, KCl, NaBr or KBr) solution is electrolyzed in a horizontal diaphragm cell wherein water or an electrolytic solution e.g. a catholyte is supplied continuously or intermittently to the underside of the diaphragm during electrolysis, e.g. from outside the cell through a spray nozzle (12), Figs. 2, 4 (not shown) or by gravity, Figs. 3 and 6 (not shown), or catholyte directly fed by capillary tubes (13), Fig. 5 (not shown) or rotating blades (16), Fig. 7 (not shown). The diaphragm has a waterpermeability of not more than 0À02 ml/cm<SP>2</SP>. cmH 2 O hr, preferably being a cation exchange membrane (a sulphonic, carboxyl or phosphoric acid group bonded to oxidation resistant polymer) e.g. (sulphonated) divinylbenzene-acrylic acid or styrene copolymer, polyolefine, polyvinyl fluorocarbon ether or perfluoroethylene-styrene copolymer. The water or solution e.g. of alkali metal hydroxide may be supplied preferably when the voltage exceeds a predetermined value (Fig. 7) to the undersides of both the diaphragm and a wire gauge or porous plate cathode 2, having a porosity of at least 50% supporting the diaphragm. A liquid maintaining material 3, e.g. asbestos, glass fibres, woven or non-woven fabrics, mats, with or without porous vinylidene chloride, polyolefin, F-containing, polyester or polyamide resins, or porous ceramics, minerals or metals, may be interposed in contact with the diaphragm and cathode and supplied during electrolysis with the water or solution e.g. via pipe 11, (Fig. 6). As shown, alkali metal halide as anolyte 9 is fed via inlet 5 and discharged via outlet 15 and alkali metal hydroxide as catholyte 10 is fed via pipe 11 as atomized spray 12 and discharged via outlet 8, outlets 6, 7 being respectively for halogen and hydrogen gases. A plurality of cells may be superimposed to form a multiple tier horizontal diaphragm cell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48039976A JPS5213519B2 (en) | 1973-04-10 | 1973-04-10 | |
| JP10376873A JPS5427840B2 (en) | 1973-09-17 | 1973-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1435672A true GB1435672A (en) | 1976-05-12 |
Family
ID=26379387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1569574A Expired GB1435672A (en) | 1973-04-10 | 1974-04-09 | Method of electrolysing alkali metal halide solution and apparatus therefor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3901774A (en) |
| CA (1) | CA1057233A (en) |
| DE (1) | DE2417365C3 (en) |
| FR (1) | FR2225539B1 (en) |
| GB (1) | GB1435672A (en) |
| IT (1) | IT1009800B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036714A (en) * | 1972-10-19 | 1977-07-19 | E. I. Du Pont De Nemours And Company, Inc. | Electrolytic cells and processes |
| DE2624553C2 (en) * | 1976-06-01 | 1982-06-24 | Oronzio de Nora Impianti Elettrochimici S.p.A., 20134 Milano | Electrolytic cell and method for reducing the concentration of caustic alkali film on the cathode side of the diaphragms of electrolytic cells |
| JPS5947037B2 (en) * | 1976-10-22 | 1984-11-16 | 旭電化工業株式会社 | Electrolysis method |
| US4302304A (en) * | 1978-08-11 | 1981-11-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Process for treating electrolytic solution |
| US4336115A (en) * | 1979-10-18 | 1982-06-22 | Purecycle Corporation | Acid base production unit |
| DE3276182D1 (en) * | 1981-10-22 | 1987-06-04 | Kanegafuchi Chemical Ind | An electrolysis process and electrolytic cell |
| JPS59193290A (en) * | 1983-04-16 | 1984-11-01 | Kanegafuchi Chem Ind Co Ltd | Electrolytic cell |
| US4548694A (en) * | 1983-06-08 | 1985-10-22 | Olin Corporation | Catholyteless membrane electrolytic cell |
| US4488947A (en) * | 1983-06-08 | 1984-12-18 | Olin Corporation | Process of operation of catholyteless membrane electrolytic cell |
| JPS6059086A (en) * | 1983-09-13 | 1985-04-05 | Kanegafuchi Chem Ind Co Ltd | Electrolyzing method |
| DE3425862A1 (en) * | 1984-07-13 | 1986-01-23 | Hoechst Ag, 6230 Frankfurt | ELECTROLYSIS CELL WITH HORIZONTALLY ARRANGED ELECTRODES |
| GB8614707D0 (en) * | 1986-06-17 | 1986-07-23 | Ici Plc | Electrolytic cell |
| IT1230984B (en) * | 1989-07-05 | 1991-11-08 | Giuseppe Bianchi | HIGH DENSITY ELECTRIC ACCUMULATOR FOR POINT LOADS. |
| JP3344828B2 (en) * | 1994-06-06 | 2002-11-18 | ペルメレック電極株式会社 | Saltwater electrolysis method |
| ZA962117B (en) * | 1995-03-27 | 1996-09-26 | Electrocatalytic Inc | Process and apparatus for generating bromine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1222239A (en) * | 1913-08-26 | 1917-04-10 | Siemens Ag | Electrolysis of alkaline haloids. |
| US1598018A (en) * | 1924-07-28 | 1926-08-31 | Firm Koholyt Ag | Process of electrolytic decomposition of chlorides |
| US3321388A (en) * | 1962-08-09 | 1967-05-23 | Asahi Denka Kogyo Kk | Process for coordinated operation of diaphragm and mercury cathode electrolytic cells |
| US3770611A (en) * | 1971-11-24 | 1973-11-06 | Olin Corp | Multiple tier horizontal diaphragm cells |
-
1974
- 1974-04-05 US US458344A patent/US3901774A/en not_active Expired - Lifetime
- 1974-04-09 GB GB1569574A patent/GB1435672A/en not_active Expired
- 1974-04-09 CA CA197,183A patent/CA1057233A/en not_active Expired
- 1974-04-09 DE DE2417365A patent/DE2417365C3/en not_active Expired
- 1974-04-10 IT IT21225/74A patent/IT1009800B/en active
- 1974-04-10 FR FR7412577A patent/FR2225539B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2417365A1 (en) | 1974-10-31 |
| FR2225539A1 (en) | 1974-11-08 |
| DE2417365C3 (en) | 1978-05-03 |
| CA1057233A (en) | 1979-06-26 |
| FR2225539B1 (en) | 1976-12-17 |
| DE2417365B2 (en) | 1977-09-22 |
| IT1009800B (en) | 1976-12-20 |
| US3901774A (en) | 1975-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] |