JPS5558383A - Stopping method for electrolytic cell of cation exchange membrane method - Google Patents
Stopping method for electrolytic cell of cation exchange membrane methodInfo
- Publication number
- JPS5558383A JPS5558383A JP13002778A JP13002778A JPS5558383A JP S5558383 A JPS5558383 A JP S5558383A JP 13002778 A JP13002778 A JP 13002778A JP 13002778 A JP13002778 A JP 13002778A JP S5558383 A JPS5558383 A JP S5558383A
- Authority
- JP
- Japan
- Prior art keywords
- cation exchange
- exchange membrane
- anode
- bath
- cathode 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.)
- 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
- C25B1/34—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
PURPOSE:To prevent concentration rise of alkali chloride metal salt in the catholyte, by lowering the temperature of the electrolytic cell by exchanging the high temperature anolyte with low temperature supply salt water when stopping power supply, when electrolyzing aqueous solution of alkali chloride metal salt by cation exchange membrane method. CONSTITUTION:In an electrolytic cell which is divided into the anode chamber and cathode chamber by means of cation exchange membrane, aqueous solution (salt water) of alkali chloride metal salt such as NaCl is electrolyzed to produce chlorine and NaOH. In case power supply is interrupted due to trouble in the power source or the like, the NaCl in the bath of anode chamber enters the cathode chamber through the cation exchange membrane, thereby lowering the purity of the product NaOH. To prevent this, the anode bath in the anode chamber is exchanged with salt water at low temperature immediately after power failure. Thus, the NaCl in the anode bath is prevented from passing through the cation exchange memberane to leak into the cathode chamber. At this time, when the NaOH concentration in the cathode chamber is 25, 30, 35 or 40%, the bath of the higher temperature in either anode chamber or cathode chamber is maintained below 55, 60, 69 or 90 deg.C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13002778A JPS5558383A (en) | 1978-10-24 | 1978-10-24 | Stopping method for electrolytic cell of cation exchange membrane method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13002778A JPS5558383A (en) | 1978-10-24 | 1978-10-24 | Stopping method for electrolytic cell of cation exchange membrane method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5558383A true JPS5558383A (en) | 1980-05-01 |
JPS614917B2 JPS614917B2 (en) | 1986-02-14 |
Family
ID=15024336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13002778A Granted JPS5558383A (en) | 1978-10-24 | 1978-10-24 | Stopping method for electrolytic cell of cation exchange membrane method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5558383A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012067343A (en) * | 2010-09-22 | 2012-04-05 | Honda Motor Co Ltd | Method for stopping operation of high-pressure water electrolysis device |
US10472723B2 (en) | 2015-01-06 | 2019-11-12 | Thyssenkrupp Uhde Chlorine Engineers (Japan) Ltd. | Method of preventing reverse current flow through an ion exchange membrane electrolyzer |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6487256A (en) * | 1987-09-30 | 1989-03-31 | Canon Kk | Image information output device |
JPH01101569A (en) * | 1987-10-14 | 1989-04-19 | Canon Inc | Laser beam printer |
JPH01127355A (en) * | 1987-11-13 | 1989-05-19 | Canon Inc | Image information output apparatus |
US4899176A (en) * | 1988-08-25 | 1990-02-06 | Minnesota Mining And Manufacturing Company | Method of reducing average data rate in rotating mirror laser recorder |
-
1978
- 1978-10-24 JP JP13002778A patent/JPS5558383A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012067343A (en) * | 2010-09-22 | 2012-04-05 | Honda Motor Co Ltd | Method for stopping operation of high-pressure water electrolysis device |
US10472723B2 (en) | 2015-01-06 | 2019-11-12 | Thyssenkrupp Uhde Chlorine Engineers (Japan) Ltd. | Method of preventing reverse current flow through an ion exchange membrane electrolyzer |
Also Published As
Publication number | Publication date |
---|---|
JPS614917B2 (en) | 1986-02-14 |
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