GB850345A - Electrolysis of alkali chloride solutions - Google Patents

Electrolysis of alkali chloride solutions

Info

Publication number
GB850345A
GB850345A GB36061/58A GB3606158A GB850345A GB 850345 A GB850345 A GB 850345A GB 36061/58 A GB36061/58 A GB 36061/58A GB 3606158 A GB3606158 A GB 3606158A GB 850345 A GB850345 A GB 850345A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
amalgam
electrode
mercury
brine
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
GB36061/58A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB850345A publication Critical patent/GB850345A/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
    • C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells
    • C25B1/42—Decomposition of amalgams
    • 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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/033—Liquid electrodes
    • 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
    • C25B9/30—Cells comprising movable electrodes, e.g. rotary electrodes; Assemblies of constructional parts thereof
    • C25B9/303—Cells comprising movable electrodes, e.g. rotary electrodes; Assemblies of constructional parts thereof comprising horizontal-type liquid electrode
    • 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

Landscapes

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

Abstract

<PICT:0850345/III/1> Chlorine and alkali metal hydroxide are produced from an alkali metal chloride brine by electrolysing the brine to free chlorine and the amalgam of the metal, decomposing the amalgam by reacting it with water in contact with an electrode negative to said amalgam to form negative-electrode-seeking ions and the alkali metal hydroxide, the ions being attracted to said negative electrode to produce electric potential, depolarising the negative electrode with a gas containing at least 18% by volume of oxygen, and employing the potential so produced to reduce the electrical potential required from an outside source to electrolyse additional brine. Sodium and potassium chlorides may be so electrolysed and the depolorising gas may be air or pure oxygen. As shown apparatus comprises a cell divided into two chambers 18, 19 by a partition 17 which does not extend to the bottom of the cell, and anode 23 and a hollow cathode 35 having a porous carbon surface 37 activated with silver. A circulating layer of mercury seals the aperture 45 at the bottom of the partition. In operation, an alkali chloride solution in chamber 18 is electrolysed, the alkali metal forms an amalgam with the mercury which then flows into chamber 19 containing water where it reacts to form the alkali metal hydroxide. Air or oxygen is supplied to the porous cathode through tube 41. Electrode 62 allows direct connection to be made to the mercury in order to start the cell.
GB36061/58A 1957-11-27 1958-11-10 Electrolysis of alkali chloride solutions Expired GB850345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US850345XA 1957-11-27 1957-11-27

Publications (1)

Publication Number Publication Date
GB850345A true GB850345A (en) 1960-10-05

Family

ID=22189042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36061/58A Expired GB850345A (en) 1957-11-27 1958-11-10 Electrolysis of alkali chloride solutions

Country Status (3)

Country Link
DE (1) DE1094722B (en)
FR (1) FR1235331A (en)
GB (1) GB850345A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266289B (en) * 1961-05-29 1968-04-18 Pullman Inc Process for obtaining the decomposition energy of amalgams in electrolytic processes
US3325382A (en) * 1962-03-01 1967-06-13 Pullman Inc Process for electrolysis of alkaline earth metal compounds in a mercury cell
US3315270A (en) * 1964-04-16 1967-04-18 Beckman Instruments Inc Dissolved oxidant analysis
US3314864A (en) * 1964-06-11 1967-04-18 Beckman Instruments Inc Gas analysis

Also Published As

Publication number Publication date
DE1094722B (en) 1960-12-15
FR1235331A (en) 1960-07-08

Similar Documents

Publication Publication Date Title
ES481257A1 (en) Generation of halogens by electrolysis of hydrogen halides in a cell having catalytic electrodes bonded to a solid polymer electrolyte
ES466797A1 (en) Process for producing sodium hypochlorite
ES476226A1 (en) Production of halogens in an electrolysis cell with catalytic electrodes bonded to an ion transporting membrane and an oxygen depolarized cathode
ES483164A1 (en) Production of halogens by electrolysis of alkali metal halides in a cell having catalytic electrodes bonded to the surface of a porous membrane/separator
US2390591A (en) Electrolytic method for producing oxygen
ES419772A1 (en) Process for electrolyzing aqueous sodium or potassium ion solutions
GB885818A (en) Improvements in or relating to the treatment of brine solutions
SE7812640L (en) HALOGEN PREPARATION BY ELECTROLYSIS OF ALKALI METAL HALOGENIDES
FR2364977A1 (en) Caustic soda prodn. by electrolysis of conc. aq. sodium salt soln. - using cell with cation exchange membrane and water as catholyte
ATE121466T1 (en) ELECTROLYZER.
ES486338A1 (en) Electrolytic production of chlorine and caustic soda.
SE7901249L (en) ELECTROLYSIS SYSTEM
GB959846A (en) An electrolytic process for producing halogen gases and the apparatus therefor
RU99127308A (en) ELECTROCHEMICAL PRODUCTION OF ALKALI METAL FROM AN AMALGAM OF ALKALI METAL
GB850345A (en) Electrolysis of alkali chloride solutions
GB1263231A (en) Atmospheric control utilizing an electrolytic carbon dioxide concentrator
DE3373496D1 (en) Double l-shaped electrode for brine electrolysis cell
ATE54343T1 (en) PROCESS FOR THE ELECTROLYSIS OF ALKALINE ICHORIDE SOLUTIONS.
GB644309A (en) Manufacture of alkali metal chlorites starting from chlorine dioxide
JPS5477284A (en) Ion exchange membrane electrolyzer
GB852597A (en) Apparatus and method for the electrolysis of alkali metal salts
GB1095324A (en)
JPS5268872A (en) Electrolytic cell for generating apparatus of electrolyzed sodium hypo chlorite
JPS5641392A (en) Electrolytic method of alkali chloride aqueous solution
GB1269543A (en) Improvements in or relating to peroxidic compounds