JPS55138087A - Electrolyzing method for aqueous alkali chloride solution - Google Patents

Electrolyzing method for aqueous alkali chloride solution

Info

Publication number
JPS55138087A
JPS55138087A JP4341579A JP4341579A JPS55138087A JP S55138087 A JPS55138087 A JP S55138087A JP 4341579 A JP4341579 A JP 4341579A JP 4341579 A JP4341579 A JP 4341579A JP S55138087 A JPS55138087 A JP S55138087A
Authority
JP
Japan
Prior art keywords
solution
hcl
alkali
alkali chloride
aqueous
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
JP4341579A
Other languages
Japanese (ja)
Inventor
Tomoyuki Emura
Masami Yonemura
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP4341579A priority Critical patent/JPS55138087A/en
Publication of JPS55138087A publication Critical patent/JPS55138087A/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 utilize a byproduct HCl effectively as a chlorine source, by a method wherein HCl in quantity required for neutralization is added to an aqueous caustic alkale solution from an electrolytic cell when an aqueous alkali chloride solution is electrolyzed by means of a diaphragm method or an ion exchange membrane method. CONSTITUTION:An aqueous solution containing caustic alkali after electrolysis is neutralized by adding a byproduct HCl to a portion or whole of the aqueous solution and again electrolyzed without supplying it to an evaporator. The neutralized solution need not be purified as in case of a raw salt. Purified alkali chloride from the raw salt or alkali chloride from other sources is added to the solution necessary, and the solution is used for electrolysis. Thus, Cl2 is obtained by using HCl in case when the demand of caustic alkali is less than that of Cl2, and the production of Cl2 and caustic alkali is economically adjusted.
JP4341579A 1979-04-09 1979-04-09 Electrolyzing method for aqueous alkali chloride solution Pending JPS55138087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4341579A JPS55138087A (en) 1979-04-09 1979-04-09 Electrolyzing method for aqueous alkali chloride solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4341579A JPS55138087A (en) 1979-04-09 1979-04-09 Electrolyzing method for aqueous alkali chloride solution

Publications (1)

Publication Number Publication Date
JPS55138087A true JPS55138087A (en) 1980-10-28

Family

ID=12663079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4341579A Pending JPS55138087A (en) 1979-04-09 1979-04-09 Electrolyzing method for aqueous alkali chloride solution

Country Status (1)

Country Link
JP (1) JPS55138087A (en)

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