US2550231A - Cells for the electrolysis of alkali salt solutions - Google Patents

Cells for the electrolysis of alkali salt solutions Download PDF

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Publication number
US2550231A
US2550231A US732570A US73257047A US2550231A US 2550231 A US2550231 A US 2550231A US 732570 A US732570 A US 732570A US 73257047 A US73257047 A US 73257047A US 2550231 A US2550231 A US 2550231A
Authority
US
United States
Prior art keywords
electrolysis
trough
cells
frame
salt solutions
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
US732570A
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English (en)
Inventor
Prez Charles De
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
Original Assignee
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 US2550231A publication Critical patent/US2550231A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • C25B9/70—Assemblies comprising two or more cells

Definitions

  • the electrolysis trough or vat proper which is of lighter and relatively flexible construction and rests on the rigid frame with interposition of a layer of a thermally and electrically insulating material. Thanks to the light Construction of the electrolysis trough internal mechanical stresses are reduced to a minimum and local distortions are practically avoided; the relatively exible trough is supported over its whole length on the rigid frame and thus takes up its rectilinear shape. The thermal insulation provided by the intermediate layer opposes the transmission of heat to the supporting frame so that the latter remains at a temperature near normal and is not stressed or exposed'to distortion.
  • the cover plates of the cell are directly supported on the vertical Walls of the trough and the requisite fluid-tightness is secured by packing arranged outside and pressed b y a clamp.
  • Figs. 1 and 2 respectively show the cell in end and side elevation
  • Fig. 3 is a longitudinal part sectional elevation on a larger scale and Fig. 4 is a part crosssection.
  • a is the trough of the electric cell which rests, through the intermediary of an insulating layer b, for example of fibrocement, on a frame c supported on insulators d.
  • the trough a has a flat sheet iron bottom e, which forms the cathodic conducting sole of the apparatus.
  • the vertical Walls j are covered inwardly with an insulating protecting coating g for example of ebonite or of synthetic resin, and are tightly'secured to the edges of the bottom e, the coating g serving as gasket material between the bottom e and walls f.
  • the side walls and bottom form a structure free from any strengthening ribs or other reinforcements adapted to making same rigid.
  • the trough is relatively flexible, i. e. it is sufficiently flexible to be stretched flat on the rigid underlying support and to undergo without any warping or buckling the variations in length due to temperature variations.
  • the insulating layer b comprises in the example illustrated two side strips b, interposed between the trough a and the frame c and a wide center strip b2 forming a heat-protecting screen resting on cross-members h secured to the supporting frame c
  • the,l trough a is secured at one point to the frame c so that in operation, after successive stoppages and starts, it will always come back to its initial position without having been subjected to prejudicial stresses.
  • VFor thatjpurpose it may be secured to one end of the frame, for instance by means of bolts z' extending through the wings of the ironsforming the walls of the trough and frame.
  • This construction permits of obtaining a plane sole adapted to keep its shape whatever be the 4 temperature conditions in operation;'thisdbeing a primary requirement for an elective'and-accurate adjustment of the anode-cathodefgap to-.a minimum distance. necessity of maintaining constant the distance resulting from the adjustment.
  • Fluid-tightness of the cell is ensured by a packing Z arranged outside the trough in a V-shaped groove between the shaped wall f and the edge of the cover plate or plates i.
  • the packing is tightened by a clamping member pressed by any suitable means and guided for example by the interengagement of lugs provided on the cover plates or on the walls, Aand notchesl provided in the members m.
  • the sole e V may advantageously beshaped so that it projects ⁇ lat-v erally (Fig. 4), beyond the Vertical wall f, the con- Another requirement is the a rigid, metallic, self-sustaining frame structure resting on said insulating supports, said frame structure being formed from elongated side portions and connecting transverse portions, said sideportions l.and said transverse portions defining a substantially planar supporting surface, an elongated electrolysis trough supported on said lframe, said electrolysis trough having a length substantially greater than its width, being substantially more flexible than said frame and comprising a nat sole portion and vertical side Walls and end walls removably secured to said soleportion, gasket material between the sole ⁇ portion and the lower surface of the end walls and side walls, a layer of thermal insulating .-materialinterposed between said frame and said Ysole-portion to prevent transmission of heat from -said trough to

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
US732570A 1946-03-11 1947-03-05 Cells for the electrolysis of alkali salt solutions Expired - Lifetime US2550231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE258007X 1946-03-11

Publications (1)

Publication Number Publication Date
US2550231A true US2550231A (en) 1951-04-24

Family

ID=3866694

Family Applications (1)

Application Number Title Priority Date Filing Date
US732570A Expired - Lifetime US2550231A (en) 1946-03-11 1947-03-05 Cells for the electrolysis of alkali salt solutions

Country Status (6)

Country Link
US (1) US2550231A (de)
BE (1) BE463772A (de)
CH (1) CH258007A (de)
FR (1) FR942684A (de)
GB (1) GB624482A (de)
NL (1) NL62240C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872403A (en) * 1955-02-03 1959-02-03 Basf Ag Electrolytic cell
US3198722A (en) * 1962-01-08 1965-08-03 Blaw Knox Co Electrolytic reaction apparatus

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316694A (de) *
US708796A (en) * 1901-01-22 1902-09-09 James G Carson Bleaching apparatus.
US1227706A (en) * 1910-07-23 1917-05-29 Royal Baking Powder Co Process of making glyoxylic acid or its compounds.
US1575627A (en) * 1924-12-10 1926-03-09 Farbenfab Vorm Bayer F & Co Electrode for use in the electrolytic evolution of gases
US1942881A (en) * 1932-08-05 1934-01-09 August A Roth Apparatus for sharpening files
US2334354A (en) * 1939-11-02 1943-11-16 Mathieson Alkali Works Inc Mercury cathode cell
US2428584A (en) * 1944-07-22 1947-10-07 Mathieson Alkali Works Inc Liquid electrode electrolytic cell
US2467892A (en) * 1942-09-18 1949-04-19 Allied Chem & Dye Corp Regenerator chamber for mercury cathode electrolytic cell
US2502888A (en) * 1945-09-17 1950-04-04 Ici Ltd Electrolytic cell

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316694A (de) *
US708796A (en) * 1901-01-22 1902-09-09 James G Carson Bleaching apparatus.
US1227706A (en) * 1910-07-23 1917-05-29 Royal Baking Powder Co Process of making glyoxylic acid or its compounds.
US1575627A (en) * 1924-12-10 1926-03-09 Farbenfab Vorm Bayer F & Co Electrode for use in the electrolytic evolution of gases
US1942881A (en) * 1932-08-05 1934-01-09 August A Roth Apparatus for sharpening files
US2334354A (en) * 1939-11-02 1943-11-16 Mathieson Alkali Works Inc Mercury cathode cell
US2467892A (en) * 1942-09-18 1949-04-19 Allied Chem & Dye Corp Regenerator chamber for mercury cathode electrolytic cell
US2428584A (en) * 1944-07-22 1947-10-07 Mathieson Alkali Works Inc Liquid electrode electrolytic cell
US2502888A (en) * 1945-09-17 1950-04-04 Ici Ltd Electrolytic cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872403A (en) * 1955-02-03 1959-02-03 Basf Ag Electrolytic cell
US3198722A (en) * 1962-01-08 1965-08-03 Blaw Knox Co Electrolytic reaction apparatus

Also Published As

Publication number Publication date
FR942684A (fr) 1949-02-15
GB624482A (en) 1949-06-09
CH258007A (fr) 1948-11-15
NL62240C (de)
BE463772A (de)

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