US1388466A - Electrolysis of solutions and apparatus thepefor - Google Patents

Electrolysis of solutions and apparatus thepefor Download PDF

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Publication number
US1388466A
US1388466A US401391A US40139120A US1388466A US 1388466 A US1388466 A US 1388466A US 401391 A US401391 A US 401391A US 40139120 A US40139120 A US 40139120A US 1388466 A US1388466 A US 1388466A
Authority
US
United States
Prior art keywords
salt
cell
brine
tank
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
US401391A
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English (en)
Inventor
Albert H Hooker
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.)
Occidental Chemical Corp
Original Assignee
Hooker Electrochemical 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
Priority to FR538199D priority Critical patent/FR538199A/fr
Application filed by Hooker Electrochemical Co filed Critical Hooker Electrochemical Co
Priority to US401391A priority patent/US1388466A/en
Priority to DEH86190D priority patent/DE356758C/de
Priority to GB19744/21A priority patent/GB167469A/en
Application granted granted Critical
Publication of US1388466A publication Critical patent/US1388466A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes

Definitions

  • This invention relates to the electrolytic decomposition of solutions, and more particularly to the electrolytic decomposition of sodium chlorid solutions in a cell of the diaphragm type, the primary objects of the invention being to provide an improved apfor the foregoing purposes.
  • the electrolytic cells in its preerred embodiment:receive in unit time a feed of a constant volume of electrol te, for example an aqueous solution. of so ium ehlorid, said electro lyte carryin salt, (typically sodium chlorld) in excess o? the amount normally soluble therein at the operating temperature, this excess of salt being of course present in solid phase at the moment of introduction of the electrolyte into the cell.
  • electrol te for example an aqueous solution.
  • electrolyte carryin salt typically sodium chlorld
  • the amount of water to be evaporated from the caustic would of course be correspondingly reduced: but the same object may be attained by keeping the concentration of thezliquor within the cell approxrl mately up to that of the feed liquor; or in other wordsas near as practicable at the saturation point.
  • Figure 1 is a diagrammatic elevation, partly in. section, of a typical circulating and feeding' system; Fig. 1a being a plan view of the constant level tank 6;
  • Fig. 2 is a partial vertical section of the same on a slightly enlarged scale on line 2-2 of Fig. 1; and I Figs. 3, 4 and 5 are detail/sectional views of various types of feed nozzles which may be employed.
  • 2 represents the brine storage tank; 3 the salt hopper containing fine granulated salt such as may be obtained by evaporation of the caustic liquor produced in the operation of the cells; 4 the mixing and agitating tanlr; 5, 5, 5, 5 the electrolytic cells; and G the levelre ulating tank.
  • he tank i is filled with brine from the tank 2 by opening the valve 7.
  • 8 is a brinemetering device which may be power-driven or may -take the form of a geared rotor pump of the Root blower type, as more clearly illustrated in Fig. 2.
  • the brine flowing through this metering device turns the rotor 9, which drives the sprocket 10, and, through chain 117 the large sprocket 12, the latter revolving a double-Hight worm conveyor 13 which extends throughout the length of the salt hopper at the bottom thereof. This worm feeds the dry salt forward into the vertical open-ended pipe 14e.
  • the stream of brine from tank 2 is likewise.
  • a brine carrying an excess of salt in solid phase will be required; and it 'is generally preferable to obtain this by filling the' tank 2 with brine having a specic gravity in the neighborhood of 1. 2, and adding through the hopper 3 the salt necessary to provide the required excess.
  • the tank et is provided 4with a centrifugal pump 17 driven by a motor 18.
  • the intake 19 of the pump 17 is located close to the bottom of the tank d, and agitators 2O are mounted upon the vertical pump shaft.
  • the delivery pipe 2l 'from pump 17 carried over the cells 5 and. terminates in an elbow 22, lom cated within the level-regulating bank 6 and directed tangentially near the bottoni there of (sec Fig. F).
  • 23 is the overiiow inlet leading to the return pipe 2e', terminating in an elbow 25 which may be directed tann gentially near the bottom of tank 4.
  • each. cell 5 is provided a feeding orifice or nozzle 2'?.
  • a simple form of such orifice is illustrated on an eniarged scale in Fig. 3, comprising a calibrated glass tube 28 let into the pipe 21 through a rubber stopper by means of a tee 29.
  • the stream of brine from the tube 28 is directed into a glass tee 30, which discharges in turn into the cells, for example through lengths of rubber hose 31, connected with earthen ware well-pipes 32, which extend to a point well below the liquid level.
  • any preferred device may be used for conveying the salt suspension to the cells or distributing it therein.
  • the hydrostatic head upon the Anlagen 27 is determined by the level of the liquid in the tank 6. This may be adjusted as desired by changing the edective height .of the overflow pipe 23, which can conveniently be done by screwing diferent lengths into the cou ⁇ p ing 33. .oo long as the level in the tank 6 1s maintained constanhthe orifice 28 will feed a constant quantity of brine in unit therein.
  • Fig. 4 yillustrates a stream-line type of orifice, screwed flush into the pipe 21 and terminating in a succession vof tapered nozzles 34, screwed one upon the other,'each successive nozzle being slightly smaller than the preceding one with the result that toether they form a uniformly tapering bark of which the aperture may be closely regulated.

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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)
US401391A 1920-08-05 1920-08-05 Electrolysis of solutions and apparatus thepefor Expired - Lifetime US1388466A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR538199D FR538199A (ref) 1920-08-05
US401391A US1388466A (en) 1920-08-05 1920-08-05 Electrolysis of solutions and apparatus thepefor
DEH86190D DE356758C (de) 1920-08-05 1921-07-10 Verfahren und Einrichtung zur Elektrolyse von Salzloesungen
GB19744/21A GB167469A (en) 1920-08-05 1921-07-22 Electrolysis of solutions and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US401391A US1388466A (en) 1920-08-05 1920-08-05 Electrolysis of solutions and apparatus thepefor

Publications (1)

Publication Number Publication Date
US1388466A true US1388466A (en) 1921-08-23

Family

ID=23587562

Family Applications (1)

Application Number Title Priority Date Filing Date
US401391A Expired - Lifetime US1388466A (en) 1920-08-05 1920-08-05 Electrolysis of solutions and apparatus thepefor

Country Status (4)

Country Link
US (1) US1388466A (ref)
DE (1) DE356758C (ref)
FR (1) FR538199A (ref)
GB (1) GB167469A (ref)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443197A (en) * 1977-09-13 1979-04-05 Asahi Glass Co Ltd Alkali chloride electrolyzing method using diaphragm
US20170057848A1 (en) * 2014-04-24 2017-03-02 Pansonic Intellectual Property Management Co., Ltd Ion exchange membrane, ion exchange membrane laminated body provided with ion exchange membrane, electrochemical cell provided with ion exchange membrane laminated body, and water treatment apparatus provided with electrochemical cell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443197A (en) * 1977-09-13 1979-04-05 Asahi Glass Co Ltd Alkali chloride electrolyzing method using diaphragm
US20170057848A1 (en) * 2014-04-24 2017-03-02 Pansonic Intellectual Property Management Co., Ltd Ion exchange membrane, ion exchange membrane laminated body provided with ion exchange membrane, electrochemical cell provided with ion exchange membrane laminated body, and water treatment apparatus provided with electrochemical cell
US10392273B2 (en) * 2014-04-24 2019-08-27 Panasonic Intellectual Property Management Co., Ltd. Ion exchange membrane, ion exchange membrane laminated body provided with ion exchange membrane, electrochemical cell provided with ion exchange membrane laminated body, and water treatment apparatus provided with electrochemical cell

Also Published As

Publication number Publication date
DE356758C (de) 1922-07-27
FR538199A (ref) 1922-06-06
GB167469A (en) 1922-07-20

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