ES352766A1 - Alkali salt electrolysis by mercury process and apparatus therefor - Google Patents

Alkali salt electrolysis by mercury process and apparatus therefor

Info

Publication number
ES352766A1
ES352766A1 ES352766A ES352766A ES352766A1 ES 352766 A1 ES352766 A1 ES 352766A1 ES 352766 A ES352766 A ES 352766A ES 352766 A ES352766 A ES 352766A ES 352766 A1 ES352766 A1 ES 352766A1
Authority
ES
Spain
Prior art keywords
mercury
emulsion
passageway
wash water
electrolysis
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
ES352766A
Other languages
Spanish (es)
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.)
Kureha Corp
Original Assignee
Kureha 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 Kureha Corp filed Critical Kureha Corp
Publication of ES352766A1 publication Critical patent/ES352766A1/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
    • 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 Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

In the electrolysis of alkali metal salt solutions in an electrolysis vessel 1 using a mercury cathode, the alkali metal e.g. sodium amalgam formed is first separated from electrolyte and contaminants (amalgam butter) e.g. by passing through gas and mercury baffles 4 and 5 into outlet passage 6, then denuded in a denuding tower 7 to recover mercury which is separated from the caustic alkali e.g. soda and caused to flow e.g. by pump 9, after or prior to addition of wash water thereto e.g. from inlet 10, into a mercury return passageway 11 to pass under a baffle 12, thereby separating the mercury 16 from the mercury emulsion 17 (butter-like emulsion of mercury particles and graphite in water) and wash water 18, so that most of the mercury is recirculated e.g. via inlet passage 13 to the vessel 1, and the mercury emulsion and wash water and a minor part of the mercury flows over a weir 14 and is recirculated along an auxiliary passageway 15 to the denuding tower 7. A common side wall may be provided between the return passageway and electrolysis vessel, Figs.4 and 5 (not shown) for the passage therethrough of mercury, a weir and auxiliary passageway to the denuding tower being provided at the downflow end of the return passageway.
ES352766A 1967-04-05 1968-04-05 Alkali salt electrolysis by mercury process and apparatus therefor Expired ES352766A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2122767 1967-04-05

Publications (1)

Publication Number Publication Date
ES352766A1 true ES352766A1 (en) 1970-01-01

Family

ID=12049116

Family Applications (1)

Application Number Title Priority Date Filing Date
ES352766A Expired ES352766A1 (en) 1967-04-05 1968-04-05 Alkali salt electrolysis by mercury process and apparatus therefor

Country Status (11)

Country Link
US (1) US3607704A (en)
BE (1) BE713223A (en)
CH (1) CH493641A (en)
DE (1) DE1767130B1 (en)
DK (1) DK135429B (en)
ES (1) ES352766A1 (en)
FR (1) FR1562412A (en)
GB (1) GB1207714A (en)
NL (2) NL6804863A (en)
NO (1) NO120072B (en)
SE (1) SE349553B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199418A (en) * 1979-05-08 1980-04-22 Basf Wyandotte Corporation Mercury recovery system in electrolytic process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT167834B (en) * 1947-05-14 1951-03-10 Vittorio De Nora Method and device for the continuous decomposition of alkali amalgam

Also Published As

Publication number Publication date
BE713223A (en) 1968-08-16
DK135429C (en) 1977-10-10
FR1562412A (en) 1969-04-04
DE1767130B1 (en) 1971-09-30
NL136042C (en) 1972-08-15
GB1207714A (en) 1970-10-07
DK135429B (en) 1977-04-25
CH493641A (en) 1970-07-15
US3607704A (en) 1971-09-21
NO120072B (en) 1970-08-24
SE349553B (en) 1972-10-02
NL6804863A (en) 1968-10-07

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