EP0189535B1 - Elektrolyseapparat - Google Patents

Elektrolyseapparat Download PDF

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Publication number
EP0189535B1
EP0189535B1 EP85114408A EP85114408A EP0189535B1 EP 0189535 B1 EP0189535 B1 EP 0189535B1 EP 85114408 A EP85114408 A EP 85114408A EP 85114408 A EP85114408 A EP 85114408A EP 0189535 B1 EP0189535 B1 EP 0189535B1
Authority
EP
European Patent Office
Prior art keywords
electrolysis
shells
cathode
anode
contact strips
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
Application number
EP85114408A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0189535A1 (de
Inventor
Helmut Dipl.-Ing. Schmitt
Dieter Dr. Bergner
Helmuth Dipl.-Ing. Schurig
Kurt Dipl.-Ing. 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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Uhde GmbH
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 Uhde GmbH filed Critical Uhde GmbH
Priority to AT85114408T priority Critical patent/ATE33271T1/de
Publication of EP0189535A1 publication Critical patent/EP0189535A1/de
Application granted granted Critical
Publication of EP0189535B1 publication Critical patent/EP0189535B1/de
Expired 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
    • 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
    • C25B9/73—Assemblies comprising two or more cells of the filter-press type
    • 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

  • the invention relates to an electrolysis apparatus for producing chlorine from aqueous alkali halide solution, which has a plurality of electrolysis cells, each consisting of a housing made of two half-shells, the housing has devices for supplying the electrolysis current and the electrolysis input materials and devices for discharging the electrolysis current and the electrolysis products, anode and cathode have a plurality of breakthrough sections and breakthrough-free sections in a parallel arrangement, the anode and cathode are arranged separated from one another by a dividing wall, and the half-shells in half-box form consist of electrically conductive material.
  • an electrolysis apparatus which consists of several electrolysis cells.
  • Each electrolysis cell has a housing that consists of two half-shells, which has the usual facilities for the supply and discharge of the input and output materials and the introduction and discharge of the electrolysis current.
  • Anode and cathode are separated from each other by a non-metallic partition, a so-called membrane.
  • the half-shells are made of a non-conductive material.
  • the current supply from the current leads of the cell to the anode and from the cathode to the anode of the neighboring cell is punctiform, i.e. there is a star-shaped current distribution at the anode or cathode.
  • This type of current distribution is disadvantageous with regard to the loss of voltage in each electrolysis cell.
  • high current densities occur at individual points on the power line due to the local concentration of the current flow.
  • the object of the invention is to create an electrolysis apparatus which avoids a concentration of current and which has an advantageous current distribution in the electrolysis cell.
  • the cathodes can be made of iron, cobalt, nickel or chromium or one of their alloys, and the anodes can be made of titanium, niobium or tantalum or an alloy of these metals or of a metal or oxide ceramic material.
  • the anodes are provided with an electrically conductive, catalytically active coating which contains metals of the compounds of the group of platinum metals. Due to the shape of the electrodes, which consist of perforated material such as perforated sheet metal, expanded metal, wattle or structures made of thin sheets with blind-like openings, and their arrangement in the electrolysis cell, the gases formed during the electrolysis can easily enter the space behind the electrodes. With this gas discharge from the electrode gap achieved is a reduction in the gas S tandes blasenwidef between the electrodes and thus a reduction of the cell voltage.
  • the half-shells can be made of iron, iron alloys, cast iron or anode material, whereby care must be taken that the half-shell on the anode side is made of a chlorine-resistant material.
  • the framework-like stiffeners between the half-shell and the electrode are expediently made of the same material as the electrode in question.
  • the ion exchange membranes customary in chloralkali electrolysis come into consideration as the partition.
  • This ion exchange membrane prevents the mixing of hydrogen and chlorine, but because of its selective permeability only allows the passage of alkali metal ions into the cathode compartment, that is, they largely prevent the passage of halide into the cathode compartment and the passage of hydroxyl ions into the anode compartment. This gives you a practically salt-free lye.
  • the electrolysis apparatus can consist of an electrolysis cell but also of a large number of cells connected in series, the electrical contact of adjacent cells taking place via the electrically conductive contact strips.
  • the half-shells 1 and 2 consists of the half-shells 1 and 2 with the bottoms 3 and with the contact strips 4 and 5.
  • the half-shells are provided with flange-like edges, between which the membrane 7 is clamped by means of the seals 6.
  • the membrane 7 can also be clamped in by other known means.
  • the framework-like metallic stiffeners 8 are arranged in such a way that they are fastened, usually welded, to the bottom of the half-shell 1 or 2, and on the other hand, the electrode as an anode 9 or cathode on the opposite side 10 wear ..
  • the electrodes are designed so that both the electrolysis input product and the output products can flow or flow freely. Every electrolysis cell is equipped with the usual supply and discharge lines. 1 to 3, for the sake of clarity, these lines have not been shown.
  • the electrolysis cells are connected in an electrically conductive manner to the adjacent electrolysis cells via the contact strips 4 and 5, respectively. From the contact strips 4, the electrical current then flows through the Half-shell bottom over the stiffeners 8 and into the anode 9. After passing through the membrane 7, the current is taken up by the cathode 10 in order to flow via the stiffeners 8 into the other half-shell bottom and then into the contact strip 5 of the same cell and from here into to cross the contact strip 4 of the next cell.
  • FIG. 2 shows the width of the contact strips 4 and 5 as well as the example of the formation of the electrode 9 and 10 in the form of a blind. This shape ensures that the electrolysis liquids and products can get into and out of the electrolysis space between the electrodes unhindered.
  • one or more spacers 11 may be arranged in front of the electrode, i.e. the anode 9 or cathode 10. These spacers expediently extend vertically, partially or entirely over the height of the electrode.
  • the breakthrough-free sections 12 can be seen from the electrode shown in FIG. 3, it can be anode 9 or cathode 10.
  • the back of these breakthrough-free sections is attached to the stiffeners 8 in an electrically conductive manner, as shown in FIG. 2.
  • the contact strips 4 and 5 are arranged on the half-shell base 3. This ensures that the current transfer and the current paths from the contact strips to the electrode are as short as possible, the current density in the current-carrying parts is as low as possible and the current distribution on the electrode is optimal. Because of the construction according to the invention, the voltage loss of a cell or of an entire electrolysis apparatus is very low.
EP85114408A 1985-01-16 1985-11-13 Elektrolyseapparat Expired EP0189535B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114408T ATE33271T1 (de) 1985-01-16 1985-11-13 Elektrolyseapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3501261 1985-01-16
DE19853501261 DE3501261A1 (de) 1985-01-16 1985-01-16 Elektrolyseapparat

Publications (2)

Publication Number Publication Date
EP0189535A1 EP0189535A1 (de) 1986-08-06
EP0189535B1 true EP0189535B1 (de) 1988-03-30

Family

ID=6259975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114408A Expired EP0189535B1 (de) 1985-01-16 1985-11-13 Elektrolyseapparat

Country Status (7)

Country Link
US (1) US4664770A (ru)
EP (1) EP0189535B1 (ru)
JP (1) JPH07103471B2 (ru)
AT (1) ATE33271T1 (ru)
DE (2) DE3501261A1 (ru)
IN (1) IN166591B (ru)
SU (1) SU1618281A3 (ru)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641125A1 (de) * 1996-10-05 1998-04-16 Krupp Uhde Gmbh Elektrolyseapparat zur Herstellung von Halogengasen
DE19740673A1 (de) * 1997-09-16 1999-03-18 Krupp Uhde Gmbh Elektrolyseapparat
DE10022604A1 (de) * 2000-05-09 2001-11-29 Krupp Uhde Gmbh Verfahren zur Herstellung von elektrischen Kontaktstreifen
DE102005003526A1 (de) * 2005-01-25 2006-07-27 Uhdenora S.P.A. Elektrolysezellen mit einer segmentierten und monolithischen Elektrodenkonstruktion
DE102005003527A1 (de) * 2005-01-25 2006-07-27 Uhdenora S.P.A. Elektrolysezelle mit erweiterter aktiver Membranfläche

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465966B (sv) * 1989-07-14 1991-11-25 Permascand Ab Elektrod foer elektrolys, foerfarande foer dess framstaellning samt anvaendningen av elektroden
DE3940978A1 (de) * 1989-12-12 1991-06-13 Hoechst Ag Verfahren zur elektrochemischen regenerierung von chromschwefelsaeure
DE3943362C2 (de) * 1989-12-30 1993-11-11 Werner Ziem Bipolare Elektrolysezelle
DE4212678A1 (de) * 1992-04-16 1993-10-21 Heraeus Elektrochemie Elektrochemische Membran-Zelle
IT1279069B1 (it) 1995-11-22 1997-12-04 Permelec Spa Nora Migliorato tipo di elettrodo per elettrolizzatori a membrana a scambio ionico
DE19816334A1 (de) * 1998-04-11 1999-10-14 Krupp Uhde Gmbh Elektrolyseapparat zur Herstellung von Halogengasen
US6761808B1 (en) 1999-05-10 2004-07-13 Ineos Chlor Limited Electrode structure
US20040108204A1 (en) 1999-05-10 2004-06-10 Ineos Chlor Limited Gasket with curved configuration at peripheral edge
GB9910714D0 (en) 1999-05-10 1999-07-07 Ici Plc Bipolar electrolyser
DE102004028761A1 (de) * 2004-06-16 2006-01-12 Uhdenora Technologies S.R.L. Elektrolysezelle mit optimierter Schalenkonstruktion und minimierter Membranfläche
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
DE102006046807A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle
DE102006046808A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle mit gewölbter Elektrodenstruktur
US20100276278A1 (en) * 2009-04-30 2010-11-04 Doug Bender Modular electrolysis device
US10407783B2 (en) 2016-05-26 2019-09-10 Calera Corporation Anode assembly, contact strips, electrochemical cell, and methods to use and manufacture thereof
DE102018209520A1 (de) 2018-06-14 2019-12-19 Thyssenkrupp Uhde Chlorine Engineers Gmbh Elektrolysezelle
DE102021103699A1 (de) * 2021-02-17 2022-08-18 WEW GmbH Elektrolysezelle
WO2022258394A1 (en) 2021-06-07 2022-12-15 thyssenkrupp nucera AG & Co. KGaA Electrolysis cell and electrolyzer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108752A (en) * 1977-05-31 1978-08-22 Diamond Shamrock Corporation Electrolytic cell bank having spring loaded intercell connectors
US4244802A (en) * 1979-06-11 1981-01-13 Diamond Shamrock Corporation Monopolar membrane cell having metal laminate cell body
JPS5647953A (en) * 1979-09-20 1981-04-30 Matsushita Electric Ind Co Ltd Tone arm driver
IT1163737B (it) * 1979-11-29 1987-04-08 Oronzio De Nora Impianti Elettrolizzatore bipolare comprendente mezzi per generare la ricircolazione interna dell'elettrolita e procedimento di elettrolisi
JPS57149477A (en) * 1981-03-09 1982-09-16 Toagosei Chem Ind Co Ltd Electrolytic cell with ion-exchange membrane
JPS6041716B2 (ja) * 1981-05-27 1985-09-18 旭硝子株式会社 複極式フイルタ−プレス型電解槽
FR2513663B1 (fr) * 1981-09-30 1986-02-28 Creusot Loire Electrolyseur du type filtre-presse
JPS59133384A (ja) * 1983-01-19 1984-07-31 Toyo Soda Mfg Co Ltd 電解槽
DE3420483A1 (de) * 1984-06-01 1985-12-05 Hoechst Ag, 6230 Frankfurt Bipolarer elektrolyseapparat mit gasdiffusionskathode

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641125A1 (de) * 1996-10-05 1998-04-16 Krupp Uhde Gmbh Elektrolyseapparat zur Herstellung von Halogengasen
DE19740673A1 (de) * 1997-09-16 1999-03-18 Krupp Uhde Gmbh Elektrolyseapparat
DE19740673C2 (de) * 1997-09-16 2001-10-31 Krupp Uhde Gmbh Elektrolyseapparat
DE10022604A1 (de) * 2000-05-09 2001-11-29 Krupp Uhde Gmbh Verfahren zur Herstellung von elektrischen Kontaktstreifen
DE102005003526A1 (de) * 2005-01-25 2006-07-27 Uhdenora S.P.A. Elektrolysezellen mit einer segmentierten und monolithischen Elektrodenkonstruktion
DE102005003527A1 (de) * 2005-01-25 2006-07-27 Uhdenora S.P.A. Elektrolysezelle mit erweiterter aktiver Membranfläche

Also Published As

Publication number Publication date
JPH07103471B2 (ja) 1995-11-08
JPS61166990A (ja) 1986-07-28
US4664770A (en) 1987-05-12
EP0189535A1 (de) 1986-08-06
SU1618281A3 (ru) 1990-12-30
DE3562024D1 (en) 1988-05-05
DE3501261A1 (de) 1986-07-17
IN166591B (ru) 1990-06-09
ATE33271T1 (de) 1988-04-15

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