US2505466A - Plant for the electrolysis of alkali salt solutions - Google Patents

Plant for the electrolysis of alkali salt solutions Download PDF

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Publication number
US2505466A
US2505466A US731264A US73126447A US2505466A US 2505466 A US2505466 A US 2505466A US 731264 A US731264 A US 731264A US 73126447 A US73126447 A US 73126447A US 2505466 A US2505466 A US 2505466A
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US
United States
Prior art keywords
cell
electrolysis
plant
mercury
alkali salt
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 - Lifetime
Application number
US731264A
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English (en)
Inventor
Deprez Charles
Basilewsky Alexis
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.)
Solvay SA
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Solvay SA
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 Solvay SA filed Critical Solvay SA
Application granted granted Critical
Publication of US2505466A publication Critical patent/US2505466A/en
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    • 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

Definitions

  • This invention relates to cells for the electrolysis of aqueous solution of alkali salts. These cells usually comprise two shallow troughs arranged side by side, the first of which is the electrolytic cell prope serving to produce alkali amalgam which thereafter is decomposed in the second cell. Such arrangement take up a great deal of space and it requires extensive current conductors.
  • An object of our present invention is to avoid these inconveniences. To that end the electrolytic cell and the decomposition cell are placed one above the other thereby reducing by one half the floor space taken up, while keeping the advantages of the two original elements.
  • a lifting device For conveying the mercury of the amalgam from the lower level to the higher level a lifting device is necessary, which should be of a power in.
  • a is a horizontal electrode electrolytic cell
  • b the amalgam decomposition cell, which are connected for the purpose of circulation of the mercury, by the downward column or passageway c and the upward column or passageway d.
  • the trough of cell I) being under a pressure measured.
  • the lifting device 6 has to overcome, in addition to the resistance represented by it, only the sum of pressures measured by the heights hl, hz respectively corresponding to the slopes of the two troughs, as is the case when the two cells are placed side by side.
  • hydrogen is delivered under pressure by the decomposition cell. If it is desired to obtain chlorine gas under pressure, the electrolytic cell a will of course be located at the lower level.
  • the invention is of as much advantage when a single decomposition cell is used for decomposing amalgam produced by a plurality of electrolytic cells, the decomposition cell then being preferably located at the lower level; a single lifting device may be used to convey the mercury to said plurality of cells.
US731264A 1946-03-02 1947-02-27 Plant for the electrolysis of alkali salt solutions Expired - Lifetime US2505466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE256506X 1946-03-02

Publications (1)

Publication Number Publication Date
US2505466A true US2505466A (en) 1950-04-25

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ID=3866666

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US731264A Expired - Lifetime US2505466A (en) 1946-03-02 1947-02-27 Plant for the electrolysis of alkali salt solutions

Country Status (7)

Country Link
US (1) US2505466A (xx)
BE (1) BE463599A (xx)
CH (1) CH256506A (xx)
DE (1) DE804557C (xx)
FR (1) FR941939A (xx)
GB (1) GB623121A (xx)
NL (1) NL65424C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848406A (en) * 1953-11-19 1958-08-19 Amroc Inc Mounting of primary and secondary sections of electrolytic cells

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190022406A (en) * 1900-12-08 1901-10-12 James Greenwood Improvements in the Decomposition of Alkaline Salts by Electrolysis and in Apparatus therefor
US918370A (en) * 1906-05-04 1909-04-13 Johan Jacob Rink Apparatus for the electrolytic decomposition of alkali-chlorid solutions by means of mercury cathodes.
US2232128A (en) * 1937-04-13 1941-02-18 Th Goldschmidt Corp Electrolysis of alkaline metal chlorides and apparatus therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190022406A (en) * 1900-12-08 1901-10-12 James Greenwood Improvements in the Decomposition of Alkaline Salts by Electrolysis and in Apparatus therefor
US918370A (en) * 1906-05-04 1909-04-13 Johan Jacob Rink Apparatus for the electrolytic decomposition of alkali-chlorid solutions by means of mercury cathodes.
US2232128A (en) * 1937-04-13 1941-02-18 Th Goldschmidt Corp Electrolysis of alkaline metal chlorides and apparatus therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848406A (en) * 1953-11-19 1958-08-19 Amroc Inc Mounting of primary and secondary sections of electrolytic cells

Also Published As

Publication number Publication date
FR941939A (fr) 1949-01-25
DE804557C (de) 1951-04-26
CH256506A (fr) 1948-08-31
NL65424C (xx)
BE463599A (xx)
GB623121A (en) 1949-05-12

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