JPS5550470A - Electrolyzing method of aqueous alkali metal salt solution - Google Patents

Electrolyzing method of aqueous alkali metal salt solution

Info

Publication number
JPS5550470A
JPS5550470A JP12272578A JP12272578A JPS5550470A JP S5550470 A JPS5550470 A JP S5550470A JP 12272578 A JP12272578 A JP 12272578A JP 12272578 A JP12272578 A JP 12272578A JP S5550470 A JPS5550470 A JP S5550470A
Authority
JP
Japan
Prior art keywords
cation exchange
exchange membrane
concentration
alkali metal
layers
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
JP12272578A
Other languages
Japanese (ja)
Inventor
Toshikatsu Sada
Toshio Oku
Akihiko Nakahara
Masaki Shiromizu
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP12272578A priority Critical patent/JPS5550470A/en
Publication of JPS5550470A publication Critical patent/JPS5550470A/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:To reduce electric power original unit by using the exchange membrane composed of three or more layers having the specific ion cation exchange groups and limiting the concentration of electrolyte at the time of electrolyzing NaCl, etc. in an electrolytic cell having the cation exchange membrane between cathode and anode. CONSTITUTION:While an aqueous alkali metal salt solution such as of NaCl is being maintained at 3.5-5N (particularly 3.5-4.5N with an aqueous NaCl solution) in concentration, it is electrolyzed under the conditions where the concentration of the aqueous NaOH solution being formed is 20-50% and yet water of 2- 5mol per Na<+> 1mol transmitting through the cation exchange membrane is carried using undermentioned cation exchange membrane as a diaphragm between both electrodes. Namely, the cation exchange membrane is formed by three or more layers of the layer having mainly sulfonic acid groups on the anode side and the plural layers having cation exchange groups of acidity weaker than that of said sulfonic acid groups (e.g., -CF2COOH, -CONH2, etc.).
JP12272578A 1978-10-06 1978-10-06 Electrolyzing method of aqueous alkali metal salt solution Pending JPS5550470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12272578A JPS5550470A (en) 1978-10-06 1978-10-06 Electrolyzing method of aqueous alkali metal salt solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12272578A JPS5550470A (en) 1978-10-06 1978-10-06 Electrolyzing method of aqueous alkali metal salt solution

Publications (1)

Publication Number Publication Date
JPS5550470A true JPS5550470A (en) 1980-04-12

Family

ID=14843036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12272578A Pending JPS5550470A (en) 1978-10-06 1978-10-06 Electrolyzing method of aqueous alkali metal salt solution

Country Status (1)

Country Link
JP (1) JPS5550470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604323A (en) * 1985-02-22 1986-08-05 E. I. Du Pont De Nemours And Company Multilayer cation exchange membrane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604323A (en) * 1985-02-22 1986-08-05 E. I. Du Pont De Nemours And Company Multilayer cation exchange membrane
EP0192261A2 (en) * 1985-02-22 1986-08-27 E.I. Du Pont De Nemours And Company Multilayer cation exchange membrane

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