JPS5713184A - Electrolyzing method for alkali chloride - Google Patents

Electrolyzing method for alkali chloride

Info

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
Application number
JP8651480A
Other languages
Japanese (ja)
Inventor
Toshimasa Okazaki
Osahiro Nakagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toagosei Co Ltd
Original Assignee
Toagosei Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toagosei Co Ltd filed Critical Toagosei Co Ltd
Priority to JP8651480A priority Critical patent/JPS5713184A/en
Publication of JPS5713184A publication Critical patent/JPS5713184A/en
Pending legal-status Critical Current

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

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.
JP8651480A 1980-06-27 1980-06-27 Electrolyzing method for alkali chloride Pending JPS5713184A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS5693883A (en) Electrolytic apparatus using solid polymer electrolyte diaphragm and preparation thereof
JPS5743991A (en) Electrolyzing method for alkali chloride
KR830002163B1 (en) Chlorine-Alkaline Electrolyzer
JPS5729591A (en) Electrolytic tank for ion exchange membrane
ES475850A1 (en) Production of halogens by electrolysis of alkali metal halides in an electrolysis cell having catalytic electrodes bonded to the surface of a solid polymer electrolyte membrane
JPS5743992A (en) Electrolyzing method for alkali chloride
US4311567A (en) Treatment of permionic membrane
EP0039171B1 (en) A method for the electrolysis of an aqueous solution of an alkali metal chloride and an electrolytic cell therefor
JPS5713184A (en) Electrolyzing method for alkali chloride
US4127457A (en) Method of reducing chlorate formation in a chlor-alkali electrolytic cell
US4177118A (en) Process for electrolyzing water
JPS5739185A (en) Cation exchange membrane for electrolysis
US4360412A (en) Treatment of permionic membrane
ES8302121A1 (en) Method of generating halogen, an electrode-membrane assembly, an electrolytic cell and a semipermeable ion-exchange membrane for said method.
JPS57198276A (en) Production of alkali metal ferrate
ES8801394A1 (en) Process for the cathodic electrowinning of metals, with the corresponding acid generation, from their salt solutions.
JPS5785982A (en) Production of alkali hydroxide
JPS5763683A (en) Production of hydrogen
JPS56108888A (en) Manufacture of alkali hydroxide and chlorine
JPS579887A (en) Production of caustic alkali
JPS5798687A (en) Anode for electrolysis
SU899720A1 (en) Cathode for electrochemically producing alkali metal hydrochlorite
JPS57198275A (en) Production of ammonium peroxodisulfate
JPS56139684A (en) Production of hydrogen and chlorine
JPS55148776A (en) Manufacture of alkali hydroxide