JPS5713184A - Electrolyzing method for alkali chloride - Google Patents
Electrolyzing method for alkali chlorideInfo
- Publication number
- JPS5713184A JPS5713184A JP8651480A JP8651480A JPS5713184A JP S5713184 A JPS5713184 A JP S5713184A JP 8651480 A JP8651480 A JP 8651480A JP 8651480 A JP8651480 A JP 8651480A JP S5713184 A JPS5713184 A JP S5713184A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- coated
- layer
- prevent
- membrane
- 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.)
- Pending
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)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
PURPOSE:To prevent the contact of a cathode with a cation exchange membrane and to prevent the deterioration of the cathode while the electrolytic cell is out of operation by forming a coated layer consisting of Ni and Zn on the surface of a material for the cathode and making the pressure of the cathodic chamber higher than that of the anodic chamber. CONSTITUTION:When alkali chloride is electrolyzed using a cation exchange membrane, the surface of a material for a cathode is coated with an Ni layer and with Zn in order and calcined to diffuse the Zn in the Ni layer. By treating this coated cathode material with acid or alkali, Zn is chiefly leached from the surface of the coated layer to manufacture a cathode having a porous active coated layer. This cathode is used in an electrolytic cell, the pressure of the cathodic chamber is made higher than that of the anodic chamber, and the ion exchange membrane is brought closer to an anode, or a spacer is put between the cathode and the membrane to prevent the contact of the cathode with the membrane. By suppling an electric current for preventing corrosion to the catholyte while the cell is out of operation, the deterioration of the cathode can be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8651480A JPS5713184A (en) | 1980-06-27 | 1980-06-27 | Electrolyzing method for alkali chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8651480A JPS5713184A (en) | 1980-06-27 | 1980-06-27 | Electrolyzing method for alkali chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5713184A true JPS5713184A (en) | 1982-01-23 |
Family
ID=13889088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8651480A Pending JPS5713184A (en) | 1980-06-27 | 1980-06-27 | Electrolyzing method for alkali chloride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5713184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207384A (en) * | 1982-05-26 | 1983-12-02 | Toagosei Chem Ind Co Ltd | Electrolytic cell for aqueous alkali chloride solution |
-
1980
- 1980-06-27 JP JP8651480A patent/JPS5713184A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207384A (en) * | 1982-05-26 | 1983-12-02 | Toagosei Chem Ind Co Ltd | Electrolytic cell for aqueous alkali chloride solution |
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