JPS55152188A - Method for electrolysis of alkali metal salt solution - Google Patents

Method for electrolysis of alkali metal salt solution

Info

Publication number
JPS55152188A
JPS55152188A JP5801279A JP5801279A JPS55152188A JP S55152188 A JPS55152188 A JP S55152188A JP 5801279 A JP5801279 A JP 5801279A JP 5801279 A JP5801279 A JP 5801279A JP S55152188 A JPS55152188 A JP S55152188A
Authority
JP
Japan
Prior art keywords
alkali metal
metal salt
electrolysis
anode chamber
current
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
JP5801279A
Other languages
Japanese (ja)
Inventor
Masaaki Kurumaya
Yoshiharu Takasaki
Eiji Asada
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 JP5801279A priority Critical patent/JPS55152188A/en
Publication of JPS55152188A publication Critical patent/JPS55152188A/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 prevent the rapid rise of cell voltage and the decrease of current efficiency when crudely purified solution is used in electrolysis of the alkali metal salt solution using an ion exchange membrane by a method wherein liquid in anode chamber is maintained at a specific pH and current is passed intermittently. CONSTITUTION:The alkali metal salt solution is roughly treated by a single filter or by settlement using sodium hydroxide or sodium carbonate and therefore contains 3 ppm or more Ca ions. Such solution is introduced into the anode chamber of the ion-exchange membrane type alkali metal salt electrolysis tank, and is subject to electrolysis by intermittently passing current. In this process, the current is halted until Ca ions are dissolved into the anode chamber and reached to sufficient equilibrium, meanwhile solution supply is contained at least in quantity equivalent to the volume of the anode chamber so that the liquid in the chamber is maintained pH 4 or more. The method remorkably relaxes the cell voltage rise and prevents the decrease in current efficiency.
JP5801279A 1979-05-14 1979-05-14 Method for electrolysis of alkali metal salt solution Pending JPS55152188A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5801279A JPS55152188A (en) 1979-05-14 1979-05-14 Method for electrolysis of alkali metal salt solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5801279A JPS55152188A (en) 1979-05-14 1979-05-14 Method for electrolysis of alkali metal salt solution

Publications (1)

Publication Number Publication Date
JPS55152188A true JPS55152188A (en) 1980-11-27

Family

ID=13072049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5801279A Pending JPS55152188A (en) 1979-05-14 1979-05-14 Method for electrolysis of alkali metal salt solution

Country Status (1)

Country Link
JP (1) JPS55152188A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184800A (en) * 1975-01-22 1976-07-24 Asahi Chemical Ind SHOKUENSUI YOEKINO DENKAIHOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5184800A (en) * 1975-01-22 1976-07-24 Asahi Chemical Ind SHOKUENSUI YOEKINO DENKAIHOHO

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