GB1487284A - Electrolysis - Google Patents

Electrolysis

Info

Publication number
GB1487284A
GB1487284A GB9388/75A GB938875A GB1487284A GB 1487284 A GB1487284 A GB 1487284A GB 9388/75 A GB9388/75 A GB 9388/75A GB 938875 A GB938875 A GB 938875A GB 1487284 A GB1487284 A GB 1487284A
Authority
GB
United Kingdom
Prior art keywords
anode
cathode
plate
gas
chamber
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.)
Expired
Application number
GB9388/75A
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.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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
Priority claimed from JP49026775A external-priority patent/JPS50120493A/ja
Priority claimed from JP14174574A external-priority patent/JPS5168477A/en
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Publication of GB1487284A publication Critical patent/GB1487284A/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
    • 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
    • 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
    • C25B3/00—Electrolytic production of organic compounds
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70—Assemblies comprising two or more cells
    • C25B9/73—Assemblies comprising two or more cells of the filter-press type
    • C25B9/77—Assemblies comprising two or more cells of the filter-press type having diaphragms

Abstract

1487284 Electrolysis in diaphragm cells ASAHI KASEI KOGYO KK 6 March 1975 [9 March 1974 30 Sept 1974 10 Dec 1974] 9388/75 Heading C7B In a process for electrolysis of an aqueous electrolyte solution, e.g. for producing NaOH, Cl 2 and H 2 from saline water, LiOH, KOH, I 2 , Br2, HClO 3 , HBrO 3 , H 2 S 2 O 8 , or adiponitrile from acrylonitrile, in a diaphragm cell having a cation exchange membrane 1 to partition the cell into a cathode and an anode chamber, in which gas is generated at least at the anode 2, the internal pressure in the cathode is kept higher (e.g. 0À2 to 5m water column) than that in the anode chamber to press the membrane towards the anode, e.g. by discharging the gas generated at the anode, (such as Cl 2 ) backwardly of the anode; with gases generated being discharged backwardly of the respective electrodes the cathode chamber is larger in volume than the anode chamber. Preferably gas permeable metallic plates are used as anode and cathode, e.g. expanded, multi-rod, perforated sheet or mesh of noble metal (e.g. Ru with or without Ti) oxide coated Ti for the anode and Ni (alloy or thiocyanate) plated Fe for the cathode. As shown (Fig. 1) the anode 2 may be carried by supports 71 on a partition wall 72 (of explosion-bonded Ti and Fe plates), between the gas-ascending space and downcomer 113, spaced from the partition 111 by distance piece 73 and connected by conductor rod 112. Mineral acid, e.g. HCl, H 2 SO 4 or HNO 3 , may be added to the anolyte to maintain the pH at or below 3À5. Bipolar electrodes may be used Fig. 4 (not shown): anode 2, a Ti plate coated with (mole per cent) 55 RuO 2 -40, TiO 2 -5ZrO 2 , joined to cathode 3, an expanded Fe plate, via Ti and Fe ribs 7, 9 and a partition wall 4 formed by explosion-bonding Ti plate 5 onto Fe plate 6. NaCl and NaOH solutions are charged into anode and cathode chambers 8, 10 via nozzles 13, 15, and Cl 2 and H 2 gases are discharged via nozzles 14, 16. The anolytes and catholytes may be recycled. The cation exchange membrane may be a polymer of perfluorosulphonic acid compound, sulphonated styrene-divinyl benzene, acrylic acid-divinyl benzene, or a phosphoric acid type membrane.
GB9388/75A 1974-03-09 1975-03-06 Electrolysis Expired GB1487284A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP49026775A JPS50120493A (en) 1974-03-09 1974-03-09
JP11255674 1974-09-30
JP14174574A JPS5168477A (en) 1974-12-10 1974-12-10 Kairyosareta denkaihoho

Publications (1)

Publication Number Publication Date
GB1487284A true GB1487284A (en) 1977-09-28

Family

ID=27285534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9388/75A Expired GB1487284A (en) 1974-03-09 1975-03-06 Electrolysis

Country Status (8)

Country Link
BR (1) BR7501374A (en)
CA (1) CA1088456A (en)
DE (1) DE2510396B2 (en)
FR (1) FR2263034B1 (en)
GB (1) GB1487284A (en)
IT (1) IT1034107B (en)
NL (1) NL169618C (en)
SE (1) SE432447B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4822460A (en) * 1984-11-05 1989-04-18 The Dow Chemical Company Electrolytic cell and method of operation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658189C2 (en) * 1976-12-22 1979-02-15 Metallgesellschaft Ag, 6000 Frankfurt Process for the electrochemical production of olefin oxide
USRE30864E (en) 1977-06-27 1982-02-09 Olin Corporation Process for electrolysis in a membrane cell employing pressure actuated uniform spacing
US4142950A (en) * 1977-11-10 1979-03-06 Basf Wyandotte Corporation Apparatus and process for electrolysis using a cation-permselective membrane and turbulence inducing means
IT1118243B (en) * 1978-07-27 1986-02-24 Elche Ltd MONOPOLAR ELECTROLYSIS CELL
DE2914870A1 (en) * 1979-04-12 1980-10-30 Hoechst Ag METHOD FOR CHLORINE AND COOLING THE ANOLYTE OF ALKALI HALOGENIDE ELECTROLYSIS
US4265719A (en) * 1980-03-26 1981-05-05 The Dow Chemical Company Electrolysis of aqueous solutions of alkali-metal halides employing a flexible polymeric hydraulically-impermeable membrane disposed against a roughened surface cathode
DK501485A (en) * 1984-11-05 1986-05-06 Dow Chemical Co ELECTROLYTE CELL AND METHOD OF OPERATING THE SAME
GB9224372D0 (en) * 1992-11-20 1993-01-13 Ici Plc Electrolytic cell and electrode therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1196631A (en) * 1966-05-31 1970-07-01 Monsanto Co Electrolytic Diaphragm Cell
US3496077A (en) * 1967-12-18 1970-02-17 Hal B H Cooper Electrolyzing of salt solutions
BE790369A (en) * 1971-10-21 1973-04-20 Diamond Shamrock Corp METHOD AND APPARATUS FOR THE PREPARATION OF HYDROXIDES FROM HIGH PURE ALKALINE METALS IN AN ELECTROLYTIC TANK.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4822460A (en) * 1984-11-05 1989-04-18 The Dow Chemical Company Electrolytic cell and method of operation

Also Published As

Publication number Publication date
FR2263034A1 (en) 1975-10-03
SE7502502L (en) 1975-09-10
NL7502738A (en) 1975-09-11
DE2510396A1 (en) 1975-09-11
NL169618C (en) 1982-08-02
NL169618B (en) 1982-03-01
FR2263034B1 (en) 1978-03-17
SE432447B (en) 1984-04-02
DE2510396C3 (en) 1987-01-22
CA1088456A (en) 1980-10-28
IT1034107B (en) 1979-09-10
BR7501374A (en) 1976-11-30
DE2510396B2 (en) 1980-04-17

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950305