JPS5698486A - Electrolysis method of aqueous alkali chloride solution - Google Patents
Electrolysis method of aqueous alkali chloride solutionInfo
- Publication number
- JPS5698486A JPS5698486A JP4880A JP4880A JPS5698486A JP S5698486 A JPS5698486 A JP S5698486A JP 4880 A JP4880 A JP 4880A JP 4880 A JP4880 A JP 4880A JP S5698486 A JPS5698486 A JP S5698486A
- Authority
- JP
- Japan
- Prior art keywords
- supplied
- anode
- exchange membrane
- chloride solution
- 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.)
- 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)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
PURPOSE:To provide high concentration NaOH and high-purity Cl2 with high- current efficiency by a method wherein a fluorine-based cation exchange membrane having carboxyl gp. is placed at anode side, a porous diaphragm separates the membrane from the anode, an aqueous sodium chloride solution is supplied to the intermediate chamber, and HCl gas is supplied to the anode chamber. CONSTITUTION:To electrolyze sodium choride, a fluorine-based cation exchange membrane having carboxyl gp. is placed at the anode side. A porous diaphragm resistance against Cl2 gas is placed between the cation exchange membrane and anode. Aqueous sodium chloride solution is supplied to the intermediate chamber between the cation-exchange membrane and the porous diaphragm. HCl gas or aqueous hydrochloric solution is supplied to the anode chamber. Meanwhile, water or a dilute caustic soda solution is supplied to the cathode chamber to give 25- 43wt% of caustic soda concentration. The process provides high-concentration caustic soda and oxygen-free high-purity Cl2 gas with high current efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4880A JPS5698486A (en) | 1980-01-07 | 1980-01-07 | Electrolysis method of aqueous alkali chloride solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4880A JPS5698486A (en) | 1980-01-07 | 1980-01-07 | Electrolysis method of aqueous alkali chloride solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5698486A true JPS5698486A (en) | 1981-08-07 |
Family
ID=11463379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4880A Pending JPS5698486A (en) | 1980-01-07 | 1980-01-07 | Electrolysis method of aqueous alkali chloride solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5698486A (en) |
-
1980
- 1980-01-07 JP JP4880A patent/JPS5698486A/en active Pending
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