JPS57169096A - Protecting method of electrolytic cell - Google Patents

Protecting method of electrolytic cell

Info

Publication number
JPS57169096A
JPS57169096A JP4291782A JP4291782A JPS57169096A JP S57169096 A JPS57169096 A JP S57169096A JP 4291782 A JP4291782 A JP 4291782A JP 4291782 A JP4291782 A JP 4291782A JP S57169096 A JPS57169096 A JP S57169096A
Authority
JP
Japan
Prior art keywords
electrolysis
small current
electrolytic cell
solution
ion
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
Application number
JP4291782A
Other languages
Japanese (ja)
Other versions
JPS5846554B2 (en
Inventor
Shunji Matsuura
Masakatsu Nishimura
Katsutoshi Yoshimoto
Nobuyuki Kuramoto
Yoshihiro Yamabe
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 JP4291782A priority Critical patent/JPS5846554B2/en
Publication of JPS57169096A publication Critical patent/JPS57169096A/en
Publication of JPS5846554B2 publication Critical patent/JPS5846554B2/en
Expired 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 contamination of an ion-exchange resin membrance, by supplying a very small current being less than decomposition voltage of an alkali metallic salt solution through the electrolysis stop period, into an electrolytic cell in case of electrolysis of said solution by an ion-exchange resin membrane process. CONSTITUTION:In case when an alkali metallic solution is electrolyzed by putting an electrolyte into an anode chamber and a cathode chamber of said electrolytic cell, a very small current is supplied as soon as the electrolysis is stopped, and also during the stop period. This very small current is set within the range of 10mA/m<2>- less than decomposition voltage of said alkali solution. Also, as for this current value, such a small current as 10-1,000mA/m<2> generally, preferably 5-500mA/m<2> is enough. As a result, contamination of an ion- exchange resin membrane is prevented, its resistance is maintained for a long period of time, and also even when the electrolysis is restarted, voltage and current efficiency before its stop can be maintained.
JP4291782A 1982-03-19 1982-03-19 How to protect an electrolytic cell Expired JPS5846554B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4291782A JPS5846554B2 (en) 1982-03-19 1982-03-19 How to protect an electrolytic cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4291782A JPS5846554B2 (en) 1982-03-19 1982-03-19 How to protect an electrolytic cell

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6607076A Division JPS52149295A (en) 1976-06-08 1976-06-08 Protecting method for electrolytic bath

Publications (2)

Publication Number Publication Date
JPS57169096A true JPS57169096A (en) 1982-10-18
JPS5846554B2 JPS5846554B2 (en) 1983-10-17

Family

ID=12649365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4291782A Expired JPS5846554B2 (en) 1982-03-19 1982-03-19 How to protect an electrolytic cell

Country Status (1)

Country Link
JP (1) JPS5846554B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561949A (en) * 1983-08-29 1985-12-31 Olin Corporation Apparatus and method for preventing activity loss from electrodes during shutdown
JP2001026893A (en) * 1999-07-14 2001-01-30 Toagosei Co Ltd Method for protecting alkali chloride electrolytic cell and protective device therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561949A (en) * 1983-08-29 1985-12-31 Olin Corporation Apparatus and method for preventing activity loss from electrodes during shutdown
JP2001026893A (en) * 1999-07-14 2001-01-30 Toagosei Co Ltd Method for protecting alkali chloride electrolytic cell and protective device therefor

Also Published As

Publication number Publication date
JPS5846554B2 (en) 1983-10-17

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