JPS5475497A - Electrolyzing method for aqueous solution of sodium chloride - Google Patents

Electrolyzing method for aqueous solution of sodium chloride

Info

Publication number
JPS5475497A
JPS5475497A JP14226977A JP14226977A JPS5475497A JP S5475497 A JPS5475497 A JP S5475497A JP 14226977 A JP14226977 A JP 14226977A JP 14226977 A JP14226977 A JP 14226977A JP S5475497 A JPS5475497 A JP S5475497A
Authority
JP
Japan
Prior art keywords
concn
salt water
membrane
naoh
keeping
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
JP14226977A
Other languages
Japanese (ja)
Inventor
Yoshio Oda
Manabu Kazuhara
Shojiro Goto
Takashi Fukushima
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.)
AGC Inc
Original Assignee
Asahi Glass 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP14226977A priority Critical patent/JPS5475497A/en
Priority to NL7804322A priority patent/NL7804322A/en
Priority to GB16330/78A priority patent/GB1572322A/en
Priority to CA000302281A priority patent/CA1141696A/en
Priority to US05/902,084 priority patent/US4202743A/en
Priority to FR7813157A priority patent/FR2389684B1/fr
Priority to DE19782819527 priority patent/DE2819527A1/en
Priority to SE7805137A priority patent/SE7805137L/en
Priority to IT23014/78A priority patent/IT1096202B/en
Publication of JPS5475497A publication Critical patent/JPS5475497A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C01D3/145—Purification by solid ion-exchangers or solid chelating agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • C08J5/2218—Synthetic macromolecular compounds
    • C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
    • C08J5/2237—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

PURPOSE:To stably elecrolyze salt water over a long period at low voltage with high current efficiency by keeping the concn. of Ca in the salt water supplied at below a specific value when the electrolysis is carried out using a fluorine- contg. cation exchange resin membrane with a predetermined ion exchange capacity while keeping NaOH at a specific concn. CONSTITUTION:Salt water is brough into contact with a chelate resin layer such as EDTA to lower the concn. of Ca in the water to below 0.08 mg/l and that of impurities such as Mg to below 0.04 mg/l. The purified salt water is then electrolyzed using a fluorine-contg. cation exchange resin membrane having carboxylic acid groups as exchange groups and an exchange capacity of 0.8-2.0 milliequivalents/ gram of dry resin while keeping the concn. of NaOH in the cathode chamber at 20- 45wt%. Thus, adhesion or accumulation of Ca to the membrane is controlled, and a rise in electric eresistance of the membrane, a lowering of current efficiency and deterioration in mechanical strength are prevented, whereby NaOH of high concn. can be produced.
JP14226977A 1977-05-04 1977-11-29 Electrolyzing method for aqueous solution of sodium chloride Pending JPS5475497A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP14226977A JPS5475497A (en) 1977-11-29 1977-11-29 Electrolyzing method for aqueous solution of sodium chloride
NL7804322A NL7804322A (en) 1977-05-04 1978-04-24 PROCESS FOR PREPARING SODIUM HYDROXIDE BY ELECTROLYZING SODIUM CHLORIDE.
GB16330/78A GB1572322A (en) 1977-05-04 1978-04-25 Electrolysis of aqueous solution of sodium chloride
CA000302281A CA1141696A (en) 1977-05-04 1978-04-28 Electrolysis of aqueous solution of sodium chloride
US05/902,084 US4202743A (en) 1977-05-04 1978-05-02 Electrolysis of aqueous solution of sodium chloride
FR7813157A FR2389684B1 (en) 1977-05-04 1978-05-03
DE19782819527 DE2819527A1 (en) 1977-05-04 1978-05-03 METHOD FOR THE ELECTROLYSIS OF AN AQUATIC SOLUTION OF SODIUM CHLORIDE
SE7805137A SE7805137L (en) 1977-05-04 1978-05-03 ELECTROLYSIS OF AUTHORIZATION OF SODIUM CHLORIDE
IT23014/78A IT1096202B (en) 1977-05-04 1978-05-04 ELECTROLYSIS OF A SODIUM CHLORIDE WATER SOLUTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14226977A JPS5475497A (en) 1977-11-29 1977-11-29 Electrolyzing method for aqueous solution of sodium chloride

Publications (1)

Publication Number Publication Date
JPS5475497A true JPS5475497A (en) 1979-06-16

Family

ID=15311416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14226977A Pending JPS5475497A (en) 1977-05-04 1977-11-29 Electrolyzing method for aqueous solution of sodium chloride

Country Status (1)

Country Link
JP (1) JPS5475497A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50120492A (en) * 1974-03-07 1975-09-20
JPS5337198A (en) * 1977-07-15 1978-04-06 Asahi Chem Ind Co Ltd Electrolytic method of sodium chloride
JPS5689846A (en) * 1979-12-21 1981-07-21 Toyo Soda Mfg Co Ltd Operating method of chelate resin tower
JPS57177980A (en) * 1981-03-30 1982-11-01 Dow Chemical Co Brine supply of membrane type electrolytic cell
JPS61235587A (en) * 1985-04-12 1986-10-20 Asahi Glass Co Ltd Electrolyzing method
JPH04168290A (en) * 1990-10-31 1992-06-16 Japan Tobacco Inc Production of causing soda which does not contain potassium
WO2009087646A1 (en) * 2008-01-07 2009-07-16 Council Of Scientific & Industrial Research An improved process of the preparation of common salt of high purity from brines in solar salt pans

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186100A (en) * 1975-01-25 1976-07-28 Asahi Chemical Ind ENSUINO DENKAIHOHO
JPS5238486A (en) * 1975-09-23 1977-03-25 Asahi Glass Co Ltd Fluorine-containing cation exchange resin membrane
JPS5248598A (en) * 1975-10-17 1977-04-18 Asahi Glass Co Ltd Method for producing alkali hydroxide
JPS5276282A (en) * 1975-12-23 1977-06-27 Asahi Glass Co Ltd F-contg. cation exchange resin membrane
JPS5284191A (en) * 1975-12-30 1977-07-13 Asahi Glass Co Ltd Improved f-contg. cation exchange resin membrane
JPS52116790A (en) * 1976-03-29 1977-09-30 Asahi Glass Co Ltd Improved f-contg. cation exchange resin membrance

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186100A (en) * 1975-01-25 1976-07-28 Asahi Chemical Ind ENSUINO DENKAIHOHO
JPS5238486A (en) * 1975-09-23 1977-03-25 Asahi Glass Co Ltd Fluorine-containing cation exchange resin membrane
JPS5248598A (en) * 1975-10-17 1977-04-18 Asahi Glass Co Ltd Method for producing alkali hydroxide
JPS5276282A (en) * 1975-12-23 1977-06-27 Asahi Glass Co Ltd F-contg. cation exchange resin membrane
JPS5284191A (en) * 1975-12-30 1977-07-13 Asahi Glass Co Ltd Improved f-contg. cation exchange resin membrane
JPS52116790A (en) * 1976-03-29 1977-09-30 Asahi Glass Co Ltd Improved f-contg. cation exchange resin membrance

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50120492A (en) * 1974-03-07 1975-09-20
JPS551351B2 (en) * 1974-03-07 1980-01-12
JPS5337198A (en) * 1977-07-15 1978-04-06 Asahi Chem Ind Co Ltd Electrolytic method of sodium chloride
JPS5514148B2 (en) * 1977-07-15 1980-04-14
JPS5689846A (en) * 1979-12-21 1981-07-21 Toyo Soda Mfg Co Ltd Operating method of chelate resin tower
JPS6251892B2 (en) * 1979-12-21 1987-11-02 Toyo Soda Mfg Co Ltd
JPS57177980A (en) * 1981-03-30 1982-11-01 Dow Chemical Co Brine supply of membrane type electrolytic cell
JPH0237432B2 (en) * 1981-03-30 1990-08-24 Dow Chemical Co
JPS61235587A (en) * 1985-04-12 1986-10-20 Asahi Glass Co Ltd Electrolyzing method
JPH04168290A (en) * 1990-10-31 1992-06-16 Japan Tobacco Inc Production of causing soda which does not contain potassium
WO2009087646A1 (en) * 2008-01-07 2009-07-16 Council Of Scientific & Industrial Research An improved process of the preparation of common salt of high purity from brines in solar salt pans
US8021442B2 (en) 2008-01-07 2011-09-20 Council Of Scientific & Industrial Research Process for the preparation of common salt of high purity from brines in solar salt pans

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