EP0182114A1 - Appareil d'électrolyse à électrodes disposées horizontalement - Google Patents

Appareil d'électrolyse à électrodes disposées horizontalement Download PDF

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Publication number
EP0182114A1
EP0182114A1 EP85113299A EP85113299A EP0182114A1 EP 0182114 A1 EP0182114 A1 EP 0182114A1 EP 85113299 A EP85113299 A EP 85113299A EP 85113299 A EP85113299 A EP 85113299A EP 0182114 A1 EP0182114 A1 EP 0182114A1
Authority
EP
European Patent Office
Prior art keywords
cathode
electrolysis
frame
anode
gas diffusion
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.)
Granted
Application number
EP85113299A
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German (de)
English (en)
Other versions
EP0182114B1 (fr
Inventor
Rudolf Dr. Staab
Dieter Dr. Bergner
Kurt Hannesen
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.)
Hoechst AG
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Hoechst AG
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Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to AT85113299T priority Critical patent/ATE36177T1/de
Publication of EP0182114A1 publication Critical patent/EP0182114A1/fr
Application granted granted Critical
Publication of EP0182114B1 publication Critical patent/EP0182114B1/fr
Expired 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
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
    • 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
    • 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 invention relates to an electrolysis apparatus for producing chlorine from aqueous alkali halide solutions, which has at least one electrolysis cell, the anode and gas diffusion cathode are arranged horizontally and separated from one another by a partition in a housing made of two half-shells and are mechanically and electrically conductively connected to the half-shells via their edges , wherein the housing is provided with means for supplying the electrolysis starting materials and for removing the electrolysis products.
  • the present invention solves the problem in that the gas diffusion cathode is liquid-tightly connected to its half-shell and is supported by a power supply and distribution device, the partition is clamped between a seal encircling the edges of the half-shells and a frame arranged in parallel therewith and is on the cathode side supports a spacer, which rests on the cathode and is held by the frame and the frame has an inlet and outlet for the catholyte.
  • Suitable as anode material is titanium, which is activated with an oxide or mixed oxide of the metals of subgroup 8 of the periodic table.
  • the diffusion cathode can consist of a current collector made of nickel fabric, which is coated with a porous, colloidal silver catalyst which is deposited on polytetrafluoroethylene and has a hydrophilic layer on the lye side.
  • the advantage of the arrangement according to the invention can be seen in the fact that an extremely thin lye film in the cathode compartment is sufficient. This results in a low hydrostatic leach pressure, at which only a very small, usually negligible amount of lye passes through the cathode. Since no lye has to be expelled from the gas space, the cell can be operated with the stoichiometric amount of oxygen. Furthermore, due to the low alkali pressure, a low gas pressure is also sufficient to set the three-phase gas-electrolyte and catalyst interface within the cathode. On the anode side, the rapid segregation of chlorine and anolyte greatly reduces the chlorine bubble effect.
  • the spacer In the case of a horizontal arrangement, in contrast to the vertical arrangement of the electrodes, the spacer also prevents the relatively flexible gas diffusion cathodes from bending and different electrode spacings (for example by bulging the cathode due to the lye pressure), which leads to a uneven power distribution will result.
  • the invention shows an electrolysis apparatus consisting of three electrolysis cells with gas diffusion cathodes 11, which are completely independent of one another and are connected to one another in an electrically conductive manner via contact points or contact strips 20.
  • the advantage of this embodiment lies in the serviceability of the construction in the event of damage to a cell. By loosening the contact pressure, the damaged cell can be removed from the cell structure and then immediately After resetting the contact pressure, the electrolysis with the remaining cells can be resumed.
  • the anode shell 1 can consist of titanium metal or a titanium alloy.
  • the anode compartment 6 is supplied with electrolyte, for example saturated sodium chloride solution, via a feed line 5. The chlorine formed and the depleted brine are removed via the pipe 7.
  • the cathode current conductor 10 is located in the cathode half-shell 8 as a current supply and distribution device, which can be designed in the form of a corrugated strip and consists of the same material as the cathode half-shell.
  • the cathode current conductor 10 carries the gas diffusion cathode 11 and connects it in an electrically conductive manner to the cathode half-shell 8.
  • the gas diffusion cathode 11 preferably consists of a metal-based electrocatalyst, as described, for example, in German patent application P 33 32 566.9, since such an electrode is also simple can be welded or soldered to the cathode current conductor.
  • the gas diffusion cathode is also on the outer edge with the cathode half-shell 8 by soldering, welding or adhesive bonded with an electrically conductive adhesive and sealed at the same time, so that the gas space 12 is formed below the cathode.
  • An oxygen-containing gas for example elemental oxygen, air or air enriched with oxygen, is fed into the latter via a feed line 13. Excess oxygen or oxygen-depleted air is disposed of via the pipe 14. This pipe 14 can also be used to remove any condensate that may be produced.
  • a peripheral frame 17 made of an alkali-resistant material, which is provided with a feed line 18 for thin lye and a discharge line 19 for the strong lye.
  • the preferred material is polytetrafluoroethylene, since this also ensures sealing against the cathode half-shell.
  • the leaching space is defined by the frame 17, the partition 15 and the cathode 11.
  • a spacer 21 made of an alkali-resistant plastic, which sets a constant distance between the gas diffusion cathode 11 and the partition wall 15, for example a cation exchange membrane.
  • the partition 15 is sealed off from the anode shell 1 by means of a seal 16.
  • the half-shells can be connected to one another at the flanges by means of screws guided in bushings made of electrically insulating material (not shown). This makes the cell particularly easy to service and maintain. However, it is also possible to stack the individual parts of the cell one above the other and press them together in the manner of a filter press. In order to enable a better current transfer from cell to cell, the outer sides of both half-shell walls or just one half-shell wall with contact points or contact strips 20 made of an electrically conductive material be provided. Finally, the cells assembled to form an electrolysis apparatus are pressed together (not shown) via tie rods or other pressing devices. The power supplies are marked with plus and minus. The anode 3 can rest on the partition 15.
  • An electrolysis cell as described above was put into operation with a gas diffusion cathode based on colloidal silver and a titanium anode in such a way that the titanium anode came to lie over the gas diffusion cathode.
  • the active cathode surface, flushed with elemental oxygen, was 0.2 m 2 .
  • the cell was equipped with a Nafion ( R ) 90209 cation exchange membrane.
  • R Nafion
  • the electrolysis cell works with a cell voltage of 2.17 V, whereby 1550 kwh / t NaOH of electrical energy is consumed.
  • the cell is operated at 90 ° C with the stoichiometric amount of oxygen; 33% by weight sodium hydroxide solution is produced.

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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)
  • Electrolytic Production Of Metals (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
EP85113299A 1984-10-26 1985-10-19 Appareil d'électrolyse à électrodes disposées horizontalement Expired EP0182114B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85113299T ATE36177T1 (de) 1984-10-26 1985-10-19 Elektrolyseapparat mit horizontal angeordneten elektroden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3439265 1984-10-26
DE19843439265 DE3439265A1 (de) 1984-10-26 1984-10-26 Elektrolyseapparat mit horizontal angeordneten elektroden

Publications (2)

Publication Number Publication Date
EP0182114A1 true EP0182114A1 (fr) 1986-05-28
EP0182114B1 EP0182114B1 (fr) 1988-08-03

Family

ID=6248844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113299A Expired EP0182114B1 (fr) 1984-10-26 1985-10-19 Appareil d'électrolyse à électrodes disposées horizontalement

Country Status (6)

Country Link
US (1) US4639303A (fr)
EP (1) EP0182114B1 (fr)
AT (1) ATE36177T1 (fr)
CA (1) CA1258443A (fr)
DE (2) DE3439265A1 (fr)
NO (1) NO165249C (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568784A1 (fr) * 1992-03-13 1993-11-10 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh Construction de cellule pour électrolyseurs et cellules à combustible
EP0611835A2 (fr) * 1993-02-18 1994-08-24 Permelec Electrode Ltd Cellule d'électrolyse ayant des électrodes à gaz et procédé d'électrolyse l'utilisant
WO1997020966A1 (fr) * 1995-12-05 1997-06-12 Karl Lohrberg Cellule electrolytique
DE10108452C2 (de) * 2001-02-22 2003-02-20 Karl Lohrberg Elektrolyseeinrichtung
DE10143410A1 (de) * 2001-09-05 2003-03-27 Rossendorf Forschzent Biomaterial und Verfahren zu dessen Herstellung
CN101107385B (zh) * 2005-01-25 2010-05-19 乌德诺拉股份公司 扩大活性隔膜表面的电解池
WO2012119942A3 (fr) * 2011-03-10 2013-01-10 Hagemann-Systems Gmbh Plaques d'espacement de cellules de batterie assemblées en une pile

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755272A (en) * 1986-05-02 1988-07-05 The Dow Chemical Company Bipolar electrochemical cell having novel means for electrically connecting anode and cathode of adjacent cell units
US4743350A (en) * 1986-08-04 1988-05-10 Olin Corporation Electrolytic cell
US4770756A (en) * 1987-07-27 1988-09-13 Olin Corporation Electrolytic cell apparatus
DE4444114C2 (de) * 1994-12-12 1997-01-23 Bayer Ag Elektrochemische Halbzelle mit Druckkompensation
US5728287A (en) * 1996-10-31 1998-03-17 H2 O Technologies, Ltd. Method and apparatus for generating oxygenated water
US6171469B1 (en) 1996-10-31 2001-01-09 H2O Technologies, Ltd. Method and apparatus for increasing the oxygen content of water
US5911870A (en) * 1997-04-11 1999-06-15 H20 Technologies, Ltd. Housing and method that provide extended resident time for dissolving generated oxygen into water
WO1999032832A2 (fr) * 1997-12-19 1999-07-01 Superior Fireplace Company Foyer a gaz a hydrogene a flamme visible
US6296756B1 (en) 1999-09-09 2001-10-02 H20 Technologies, Ltd. Hand portable water purification system
DE19954247C2 (de) * 1999-11-11 2002-11-14 Wolfgang Strewe Elektrolysezelle mit Gasdiffusionselektrode für großtechnische Anlagen sowie Verwendungen der Elektrolysezelle
US20020168418A1 (en) * 2000-08-04 2002-11-14 H20 Technologies, Ltd. Method and apparatus for treating water for use in improving the intestinal flora of livestock and poultry
US6358395B1 (en) 2000-08-11 2002-03-19 H20 Technologies Ltd. Under the counter water treatment system
DE10138214A1 (de) * 2001-08-03 2003-02-20 Bayer Ag Elektrolysezelle und Verfahren zur elektrochemischen Herstellung von Chlor
DE10152276A1 (de) * 2001-10-23 2003-04-30 Bayer Ag Elektrolysezellen-Halbelement zum Betrieb von Gasdiffusionselektroden mit Trennung der Funktionsräume
DE10152792A1 (de) * 2001-10-25 2003-05-08 Bayer Ag Methode zur Integration einer Gasdiffusionselektrode in einen elektrochemischen Reaktionsapparat
JP3924545B2 (ja) * 2003-03-31 2007-06-06 三井化学株式会社 ガス拡散電極の排電方法
DE102004028761A1 (de) 2004-06-16 2006-01-12 Uhdenora Technologies S.R.L. Elektrolysezelle mit optimierter Schalenkonstruktion und minimierter Membranfläche
US20060264321A1 (en) * 2005-05-23 2006-11-23 Board Of Regents, The University Of Texas System Electrocatalysts for oxygen reduction
US7498286B2 (en) * 2005-05-23 2009-03-03 Board Of Regents, The University Of Texas System Electrocatalyst for oxygen reduction reaction in proton exchange membrane fuel cells
ITMI20060054A1 (it) * 2006-01-16 2007-07-17 Uhdenora Spa Distributore di corrente elastico per celle a percolatore
DE102006020374A1 (de) * 2006-04-28 2007-10-31 Uhdenora S.P.A. Mikrostrukturierter Isolierrahmen für Elektrolysezellen
DE102006028168A1 (de) * 2006-06-16 2007-12-20 Uhde Gmbh Vorrichtung zur elektrochemischen Wasseraufbereitung
US9406942B2 (en) * 2012-06-27 2016-08-02 Nissan North America, Inc. Electrocatalyst rotating disk electrode preparation apparatus
ES2727129T3 (es) 2014-06-16 2019-10-14 Siemens Ag Capa de difusión gaseosa, celda electrolítica tipo PEM con una tal capa de difusión gaseosa, así como electrolizador

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288644A (en) * 1962-06-18 1966-11-29 Leesona Corp Fuel cell moudule with palladium-silver alloy anode
US4108752A (en) * 1977-05-31 1978-08-22 Diamond Shamrock Corporation Electrolytic cell bank having spring loaded intercell connectors
GB1534834A (en) * 1976-10-22 1978-12-06 Asahi Denka Kogyo Kk Electrolysis of an aqueous alkali metal halide solution
DE2909640A1 (de) * 1979-03-12 1980-09-25 Hoechst Ag Elektrolyseapparat
EP0104137A2 (fr) * 1982-08-26 1984-03-28 Eltech Systems Corporation Cellule d'électrolyse à électrode gazeuse et faible distance interélectrode

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1907818A (en) * 1930-08-11 1933-05-09 Dow Chemical Co Method of electrolysis and means therefor
US3976550A (en) * 1971-09-22 1976-08-24 Oronzio De Nora Implanti Elettrochimici S.P.A. Horizontal, planar, bipolar diaphragm cells
US3770611A (en) * 1971-11-24 1973-11-06 Olin Corp Multiple tier horizontal diaphragm cells
US3976556A (en) * 1974-12-05 1976-08-24 Oronzio De Nora Impianti Elettrochimici S.P.A. Electrolysis cell
US4350575A (en) * 1977-12-06 1982-09-21 Battelle Memorial Institute Method for preparing an aqueous treatment solution containing at least hydrogen peroxide ions and hydroxyl ions in predetermined concentrations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288644A (en) * 1962-06-18 1966-11-29 Leesona Corp Fuel cell moudule with palladium-silver alloy anode
GB1534834A (en) * 1976-10-22 1978-12-06 Asahi Denka Kogyo Kk Electrolysis of an aqueous alkali metal halide solution
US4108752A (en) * 1977-05-31 1978-08-22 Diamond Shamrock Corporation Electrolytic cell bank having spring loaded intercell connectors
DE2909640A1 (de) * 1979-03-12 1980-09-25 Hoechst Ag Elektrolyseapparat
EP0104137A2 (fr) * 1982-08-26 1984-03-28 Eltech Systems Corporation Cellule d'électrolyse à électrode gazeuse et faible distance interélectrode

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568784A1 (fr) * 1992-03-13 1993-11-10 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh Construction de cellule pour électrolyseurs et cellules à combustible
US5384208A (en) * 1992-03-13 1995-01-24 Deutsche Aerospace Ag Cell structure for electrolyzer units and fuel cells
EP0611835A2 (fr) * 1993-02-18 1994-08-24 Permelec Electrode Ltd Cellule d'électrolyse ayant des électrodes à gaz et procédé d'électrolyse l'utilisant
EP0611835A3 (fr) * 1993-02-18 1995-05-03 Permelec Electrode Ltd Cellule d'électrolyse ayant des électrodes à gaz et procédé d'électrolyse l'utilisant.
WO1997020966A1 (fr) * 1995-12-05 1997-06-12 Karl Lohrberg Cellule electrolytique
DE10108452C2 (de) * 2001-02-22 2003-02-20 Karl Lohrberg Elektrolyseeinrichtung
DE10143410A1 (de) * 2001-09-05 2003-03-27 Rossendorf Forschzent Biomaterial und Verfahren zu dessen Herstellung
CN101107385B (zh) * 2005-01-25 2010-05-19 乌德诺拉股份公司 扩大活性隔膜表面的电解池
WO2012119942A3 (fr) * 2011-03-10 2013-01-10 Hagemann-Systems Gmbh Plaques d'espacement de cellules de batterie assemblées en une pile

Also Published As

Publication number Publication date
NO854272L (no) 1986-04-28
NO165249B (no) 1990-10-08
CA1258443A (fr) 1989-08-15
DE3439265A1 (de) 1986-05-07
NO165249C (no) 1991-01-16
US4639303A (en) 1987-01-27
DE3564136D1 (en) 1988-09-08
ATE36177T1 (de) 1988-08-15
EP0182114B1 (fr) 1988-08-03

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