US1741290A - Apparatus for electrolyzing chiefly alkaline chlorides - Google Patents

Apparatus for electrolyzing chiefly alkaline chlorides Download PDF

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Publication number
US1741290A
US1741290A US153150A US15315026A US1741290A US 1741290 A US1741290 A US 1741290A US 153150 A US153150 A US 153150A US 15315026 A US15315026 A US 15315026A US 1741290 A US1741290 A US 1741290A
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Prior art keywords
bell
electrolyzing
diaphragm
anodes
cathodic
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Expired - Lifetime
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US153150A
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English (en)
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Dupire Andre Paul Henri
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Individual
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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
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms

Definitions

  • My invention relates to electrolyzing apparatuses especially to those adapted to elec trolyze alkaline y chlorides and Generally speaking all substances producing lliquid or gaseous substances. i .y f p
  • the electrolyzing apparatuses used nowadays in the manufacture of soda/and chlorine are of' two classes. 5 y
  • Horizontal diaphragm apparatuses such as the Bilitzer apparatus. They comprise a bell of concrete or heavy stonework containing the anodes, the inlets for the electrolyte and for the heating fluid and the chlorine outlet. The'bell rests on the'diapliragm supported by the cathode, the whole being disposed in the cathodic vat. The result is that each time the diaphragm is t .be changed (i. e. about every three months), the heavy and cumbersome bell must be raisedand removed by means of an overhead traveller and the apparatus taken to'pieces.
  • the cathodic compartment supporting the diaphragm can be considered as hung inside the bell through a rod arrangement whereby it can be lowered or raised and consequently the diaphragm can be changed without moving the bell.
  • a peripheral fiange is disposed inside the bell.
  • the anodes constituted by graphite bars rest on this flange and are fed with current through graphite rods passing 50 through the bell.
  • graphite rods passing 50 through the bell.
  • these rods are first removed from outside afterdisconnecting them from the graphite bars. They are then removed from inside f
  • the diaphragm and cathode which are pressed against the said flange by the edges of a cathodic vat supported by rods adapted to'be raised and lowered with reference to the bell.
  • the anodic and cathodic compartments instead of being separated by a flat diaphragm may be separated by a corrugated diaphragm, the edges of the bell and cathodic vat being correspondingly shaped.
  • the anodic bars which maybe disposed inside the corrugations have thereby an increased active surface.
  • Fig. 1 is a perspective View of a first form of execution.
  • Figs. 2 and 3 are a cross-section and a longitudinal section thereof.
  • F ig. 4 is a detail plan view.
  • Fig. 5 is a'longitudinal section of a modified form of my apparatus.
  • the electrolyzer on Fig. 1 comprises a par alle l-epipedic bell 1 of concrete or other resistingvmaterial; it extends downwards in as many points as may be necessary whereby it is supported by the posts 2 with the interposition of an insulating part 3. Inside and at the lower part of the bell is a flange 4 running longitudinally along the long sides.
  • the electrolyte is provided in a small reservoir 20 communicating with the bell. 1 through a pipe. 21.
  • a float 22 provided with a rack is disposed in the reservoir and conl trolls the cock 23. The float being adjusted through the rack, the level in the bell'1 can be varied, the tube E34-allowing inspection of
  • the cathodic compartment 9 comprises an outlet 26 for the hydrogen; the soda passes out through the Siphon 27 and the negative terminal of the wire 28 is connected with the cathode.
  • the apparatus is very easily takeny to pieces. By unscrewing the nuts 13 the cathodic vat can be lowered when -desired together with the diaphragm which can be changed at will.
  • the cathodic part 6-7-49 and 10 when the cathodic part 6-7-49 and 10 is lowered, the anodes can be reached. If the rods 16 have been previously removed from outside through the apertures 15, the bars 5 can be removed from below by inclining them a little obliquely.
  • suoli an apparatus it is easy to obtain witliNaCl for instance.
  • a soda lye containing 180 gr. of NaOH per litre with aneiiicieiicy as toy curi'ent of 96 to 98% and as to energy of 60 to 85%.
  • connection between these parts is made along the dotand-dash lines33, 34, the part-s being connected through a chemicalA restisting cement. They are moreover held together by an arrangement of plates and rods, threaded or not, as shown in 35 which preUv vents the parts from separating.
  • the elements 1, 17 1", 1" can be niade of moulded molten basalt which'shows the considerable advantage of resisting chemical products such as moist chlorine and salt water whereby very pure products are obtained.
  • the cathodic compartment can be formed with a number of parts equal or not to that of the anodic parts.
  • f ln electrolyzing apparatus comprising'A a stationary anodicbell, posts on which the said bell is fixed and forming a lower eXtension of the bell, anodes inside the bell, a cathodic yat, means for removably securing said vat inside and at the lower part of said ⁇ bellunder the anodes, acatho'de over said vat,
  • An electrolyzing apparatusl comprising an anodic bell, of molten basaltconstituted by a series of elements cemented and secured together, posts on which the said bell is fixed,
  • a cathodic vat removably disposed inside and at the lower ⁇ part of saidbell under the anodes, a cathode over said vat, a diaphragm over the cathodeand under the anodes, an electric supply vand means for connecting said supply res actively with the anodes and with the catho e.
  • An electroly'zing apparatus comprising a stationary anodic bell, posts on which the said bell is fixed and forming a. lower exten-J x sionof the bell, a cathodic vatihaving undulating transversal edges, meansAv for'removably securing said vat inside and at the lower part of said .bell under the anodes, acathode tting over said vat, a diaphragm fitted over the cathode andvin the undulations in which :the anodes Iare disposed, .an electric supply andme'ansforsconnectin said supply vrespectively with@ the ao es and with the cathode.

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  • 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)
US153150A 1926-03-16 1926-12-07 Apparatus for electrolyzing chiefly alkaline chlorides Expired - Lifetime US1741290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR625876T 1926-03-16

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US1741290A true US1741290A (en) 1929-12-31

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US (1) US1741290A (fr)
FR (1) FR625876A (fr)
GB (1) GB267912A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923614A (en) * 1974-04-01 1975-12-02 Oronzio De Nora Impianti Method of converting mercury cathode chlor-alkali electrolysis cells into diaphragm cells and cells produced thereby

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161759A (en) * 1991-06-17 1992-11-10 Emhart, Inc. Wire bundle retainer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923614A (en) * 1974-04-01 1975-12-02 Oronzio De Nora Impianti Method of converting mercury cathode chlor-alkali electrolysis cells into diaphragm cells and cells produced thereby

Also Published As

Publication number Publication date
FR625876A (fr) 1927-08-22
GB267912A (en) 1927-06-23

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