JPS5460295A - Electrolysis of alkali metal halides - Google Patents

Electrolysis of alkali metal halides

Info

Publication number
JPS5460295A
JPS5460295A JP12702077A JP12702077A JPS5460295A JP S5460295 A JPS5460295 A JP S5460295A JP 12702077 A JP12702077 A JP 12702077A JP 12702077 A JP12702077 A JP 12702077A JP S5460295 A JPS5460295 A JP S5460295A
Authority
JP
Japan
Prior art keywords
cation
anode
cathode
membrane
exchange 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
JP12702077A
Other languages
Japanese (ja)
Inventor
Tokuzo Iijima
Toshiji Yamamoto
Kazuo Kishimoto
Takamichi Komabashiri
Toshiji Kano
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP12702077A priority Critical patent/JPS5460295A/en
Publication of JPS5460295A publication Critical patent/JPS5460295A/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

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:The insulative property of a cation exchange-membrane is utilized to firmly contact an anode, a cation-exchange membrane and a cathode, thereby minimizing an electrode distance. This results in a lowered decomposition voltage of alkali chloride and a reduced concentration of alkali chloride in alkali hydroxide. CONSTITUTION:In an electroysis of an aqueous alkali chloride aolution using a cation- exchange membrane, an anode surface is provided typically with an insulating cation- exchange membrane, whereonto is pressed a cathode by using a spring. This provids a firm mutual contact between the anode, the membrane and the cathode, resulting in a reduced electrode distance ranging from 0.01 to 2mm. At an anode current density of 25A/dm<2>, a cell voltage lowers by 0.1 to 0.6V compared to conventinal methods in the prior art. In addition, in a 50% concentration of NaOH, NaCl concentation decreases by 5 to 50ppm at the current density mentioned above.
JP12702077A 1977-10-21 1977-10-21 Electrolysis of alkali metal halides Pending JPS5460295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12702077A JPS5460295A (en) 1977-10-21 1977-10-21 Electrolysis of alkali metal halides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12702077A JPS5460295A (en) 1977-10-21 1977-10-21 Electrolysis of alkali metal halides

Publications (1)

Publication Number Publication Date
JPS5460295A true JPS5460295A (en) 1979-05-15

Family

ID=14949691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12702077A Pending JPS5460295A (en) 1977-10-21 1977-10-21 Electrolysis of alkali metal halides

Country Status (1)

Country Link
JP (1) JPS5460295A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5675583A (en) * 1979-11-27 1981-06-22 Asahi Glass Co Ltd Production of alkali hydroxide
JPS56112490A (en) * 1980-02-11 1981-09-04 Ppg Industries Inc Solid polymer electrolyte chlorine alkali process and electrolytic cell
JPS5723076A (en) * 1980-07-18 1982-02-06 Asahi Glass Co Ltd Preparation of alkali hydroxide and chlorine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5675583A (en) * 1979-11-27 1981-06-22 Asahi Glass Co Ltd Production of alkali hydroxide
JPS56112490A (en) * 1980-02-11 1981-09-04 Ppg Industries Inc Solid polymer electrolyte chlorine alkali process and electrolytic cell
JPS5723076A (en) * 1980-07-18 1982-02-06 Asahi Glass Co Ltd Preparation of alkali hydroxide and chlorine

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