JPS579887A - Production of caustic alkali - Google Patents
Production of caustic alkaliInfo
- Publication number
- JPS579887A JPS579887A JP8283380A JP8283380A JPS579887A JP S579887 A JPS579887 A JP S579887A JP 8283380 A JP8283380 A JP 8283380A JP 8283380 A JP8283380 A JP 8283380A JP S579887 A JPS579887 A JP S579887A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- ion exchange
- caustic alkali
- exchange membrane
- metal
- 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 produce caustic alkali under low voltage by disposing the cathode by way of a porous layer having no electrode activity disposed on the cathode side of an ion exchange membrane, forming the thin layer of metallic hydroxide on the anode side face of the ion exchange membrane and electrolyzing alkali chloride in this state. CONSTITUTION:The cathode of a porous plate or the like consisting of platinum group metal or the like is disposed on the cathode side face of an ion exchange membrane by way of a porous layer consisting of gas and liquid permeable nonconductive material having no electrode activity, such as, for example, Ti. On the other hand, said metal or metallic ions are added to an aqueous alkali chloride soln. to be supplied into the anode chamber in a manner as to form a thin layer contg. hydroxide of metal of iron group or the like. Next, in this state, electrolysis is accomplished at about 1-7pH in general, so that caustic alkali is formed in the cathode chamber. According to this method, electrolyzing voltage is reduced by about 0.1-0.9V as compared to a process for production of caustic alkali using a normally practiced ion exchange method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283380A JPS579887A (en) | 1980-06-20 | 1980-06-20 | Production of caustic alkali |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8283380A JPS579887A (en) | 1980-06-20 | 1980-06-20 | Production of caustic alkali |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS579887A true JPS579887A (en) | 1982-01-19 |
| JPS625998B2 JPS625998B2 (en) | 1987-02-07 |
Family
ID=13785401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8283380A Granted JPS579887A (en) | 1980-06-20 | 1980-06-20 | Production of caustic alkali |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579887A (en) |
-
1980
- 1980-06-20 JP JP8283380A patent/JPS579887A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS625998B2 (en) | 1987-02-07 |
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