JPS5511151A - Production of caustic soda - Google Patents

Production of caustic soda

Info

Publication number
JPS5511151A
JPS5511151A JP8356678A JP8356678A JPS5511151A JP S5511151 A JPS5511151 A JP S5511151A JP 8356678 A JP8356678 A JP 8356678A JP 8356678 A JP8356678 A JP 8356678A JP S5511151 A JPS5511151 A JP S5511151A
Authority
JP
Japan
Prior art keywords
salt water
heated
electrolysis
gas
preheating
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
JP8356678A
Other languages
Japanese (ja)
Inventor
Nobuyuki Ota
Tetsushi Yamada
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 JP8356678A priority Critical patent/JPS5511151A/en
Publication of JPS5511151A publication Critical patent/JPS5511151A/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

Abstract

PURPOSE:To produce NaOH through efficient and economical performance of diaphragm method electrolysis by refining salt water then preheating and electrolyzing the same and circulating the resultant H2 gas and Cl2 gas to preheating process. CONSTITUTION:Salt water 1 is supplied to a refining process 2, where it is refined. The refined salt water is sent through line 3 to a preheating process 4, where it is heat-exchanged with the H2 gas and Cl2 gase sent through lines 10, 9 from an electrolysis process 8 by heat exchangers 5', 5, whereby it is heated to the salt water 6 of high temperature. The salt water 6 is further heated to high temperature by a heater 7 using steam. This heated salt water is sent to the electrolysis process 8, where it is electrolyzed in an electrolytic cell and is taken out as Cl2 gas, H2 and caustic soda 11 containing edible salt. The edible salt is dissolved in the salt water which has been heated in the preheating process 4 and has been steam-heated, if necessary, to a high temperature to increase its concentration further, whereby the electric energy required for electrolysis in the electrolysis process 8 may be additionally reduced.
JP8356678A 1978-07-11 1978-07-11 Production of caustic soda Pending JPS5511151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8356678A JPS5511151A (en) 1978-07-11 1978-07-11 Production of caustic soda

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8356678A JPS5511151A (en) 1978-07-11 1978-07-11 Production of caustic soda

Publications (1)

Publication Number Publication Date
JPS5511151A true JPS5511151A (en) 1980-01-25

Family

ID=13806055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8356678A Pending JPS5511151A (en) 1978-07-11 1978-07-11 Production of caustic soda

Country Status (1)

Country Link
JP (1) JPS5511151A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785001B2 (en) 2001-08-21 2004-08-31 Silicon Light Machines, Inc. Method and apparatus for measuring wavelength jitter of light signal
JP2017098039A (en) * 2015-11-20 2017-06-01 東京瓦斯株式会社 By-product hydrogen utilization system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6785001B2 (en) 2001-08-21 2004-08-31 Silicon Light Machines, Inc. Method and apparatus for measuring wavelength jitter of light signal
JP2017098039A (en) * 2015-11-20 2017-06-01 東京瓦斯株式会社 By-product hydrogen utilization system

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