JPS5735688A - Method for electrolysis of potassium chloride brine - Google Patents

Method for electrolysis of potassium chloride brine

Info

Publication number
JPS5735688A
JPS5735688A JP11018380A JP11018380A JPS5735688A JP S5735688 A JPS5735688 A JP S5735688A JP 11018380 A JP11018380 A JP 11018380A JP 11018380 A JP11018380 A JP 11018380A JP S5735688 A JPS5735688 A JP S5735688A
Authority
JP
Japan
Prior art keywords
concn
potassium chloride
exchange membrane
electrolysis
electrolytic cell
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
JP11018380A
Inventor
Atsuji Itou
Yoshinori Iwai
Toshimasa Okazaki
Original Assignee
Toagosei Chem Ind 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 Chem Ind Co Ltd filed Critical Toagosei Chem Ind Co Ltd
Priority to JP11018380A priority Critical patent/JPS5735688A/en
Publication of JPS5735688A publication Critical patent/JPS5735688A/en
Application status is Pending legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/34Simultaneous production of alkali metal hydroxides and chlorine, its oxyacids or salts
    • C25B1/46Simultaneous production of alkali metal hydroxides and chlorine, its oxyacids or salts in diaphragm cells

Abstract

PURPOSE:To obtain high electric current efficiency with relatively low cell voltage by pretreating an exchange membrane, and specifying the Ca and Ng concns. in supply brine, the KCl concn. in anode chamber and the KOH concn. in a cathode chamber in performing KCl electrolysis with the specific cation exchange membrane. CONSTITUTION:At the time of electrolyzing potassium chloride brine by using a sulfonic acid group as an ion exchange group, and using a fluorocarbon type cation exchange membrane of which the equiv. weight of this sulfonic acid group is about 1,000-1,300, the cation exchange membrane is immersed in water or an aqueous hydrochloric acid, immediately after which it is mounted in an electrolytic cell. Thence, the potassium chloride brine of <=0.05mg/l total concns. of calcium ions and magnesium ions is supplied into the electrolytic cell, and the electrolysis is accomplished by maintaining the potassium chloride concn. in the anode chamber at >=150g/l and the concn. of the azueous potassium hydroxide soln. in the cathode chamber at 27-32wt%. The temp. of the electrolytic cell is kept at about 40-90 deg.C.
JP11018380A 1980-08-13 1980-08-13 Method for electrolysis of potassium chloride brine Pending JPS5735688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11018380A JPS5735688A (en) 1980-08-13 1980-08-13 Method for electrolysis of potassium chloride brine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11018380A JPS5735688A (en) 1980-08-13 1980-08-13 Method for electrolysis of potassium chloride brine

Publications (1)

Publication Number Publication Date
JPS5735688A true JPS5735688A (en) 1982-02-26

Family

ID=14529141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11018380A Pending JPS5735688A (en) 1980-08-13 1980-08-13 Method for electrolysis of potassium chloride brine

Country Status (1)

Country Link
JP (1) JPS5735688A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5174984A (en) * 1974-11-21 1976-06-29 Hooker Chemicals Plastics Corp Denkaisoyonomaku no kondeishoninguhoho
JPS5186100A (en) * 1975-01-25 1976-07-28 Asahi Chemical Ind Ensuinodenkaihoho
JPS529700A (en) * 1975-07-15 1977-01-25 Asahi Chem Ind Co Ltd Manufacturing method of high purity caustic soda solution

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5174984A (en) * 1974-11-21 1976-06-29 Hooker Chemicals Plastics Corp Denkaisoyonomaku no kondeishoninguhoho
JPS5186100A (en) * 1975-01-25 1976-07-28 Asahi Chemical Ind Ensuinodenkaihoho
JPS529700A (en) * 1975-07-15 1977-01-25 Asahi Chem Ind Co Ltd Manufacturing method of high purity caustic soda solution

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