EP0189535A1 - Appareil d'électrolyse - Google Patents

Appareil d'électrolyse Download PDF

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Publication number
EP0189535A1
EP0189535A1 EP85114408A EP85114408A EP0189535A1 EP 0189535 A1 EP0189535 A1 EP 0189535A1 EP 85114408 A EP85114408 A EP 85114408A EP 85114408 A EP85114408 A EP 85114408A EP 0189535 A1 EP0189535 A1 EP 0189535A1
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.)
Granted
Application number
EP85114408A
Other languages
German (de)
English (en)
Other versions
EP0189535B1 (fr
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/fr
Application granted granted Critical
Publication of EP0189535B1 publication Critical patent/EP0189535B1/fr
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 the production of chlorine from aqueous alkali halide solution, which has a plurality of electrolysis cells, each consisting of a housing from 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 partition, 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 one.
  • Housing which consists of two half-shells, 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 unfavorable in terms of the voltage loss - every 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 consist of iron, cobalt, nickel or chromium or one of their alloys, and the anodes can consist 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. This gas pull from the electrode gap achieves a reduction in the gas bubble resistance between the electrodes and thus a reduction in the cell voltage.
  • the half-shells can consist of iron, iron alloys, cast iron or anode material, it being important to ensure that the half-shell on the anode side is made of a material resistant to chlorine.
  • 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 chlor-alkali electrolysis can be considered as a partition.
  • a copolymer of tetrafluoroethylene and a perfluorovinyl ether sulfonic acid is suitable as the ion exchange material.
  • 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, i.e. 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 such that they are attached to the bottom of the half-shell 1 or 2, usually welded, and on the other hand, the electrode as an anode 9 or cathode on the opposite side 10 wear.
  • the electrodes are designed in such a way that both the electrolysis input product and the output products can flow or flow freely.
  • Each 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 made electrically conductive via the contact strips 4 and 5, respectively, to neighboring electrolysis cells bound. From the contact strips 4, the electrical current then flows through the half-shell bottom via the stiffeners 8 and into the anode 9. After passing through the membrane 7, the current is absorbed by the cathode 10, in order to pass via the stiffeners 8 into the other half-shell bottom and then into the To flow contact strips 5 of the same cell and to pass from here into 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 7 in an electrically conductive manner, as shown in FIG. 2. 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.

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)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Metals (AREA)
EP85114408A 1985-01-16 1985-11-13 Appareil d'électrolyse Expired EP0189535B1 (fr)

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
DE19853501261 DE3501261A1 (de) 1985-01-16 1985-01-16 Elektrolyseapparat
DE3501261 1985-01-16

Publications (2)

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

Family

ID=6259975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114408A Expired EP0189535B1 (fr) 1985-01-16 1985-11-13 Appareil d'électrolyse

Country Status (7)

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436146A1 (fr) * 1989-12-12 1991-07-10 Hoechst Aktiengesellschaft Procédé de régénération électrochimique d'acide chromosulfurique
EP0565836A1 (fr) * 1992-04-16 1993-10-20 Heraeus Elektrochemie Gmbh Cellule électrochimique à membrane
EP0776996A1 (fr) 1995-11-22 1997-06-04 De Nora S.P.A. Electrode pour électrolyseurs à membrane
WO1999053122A1 (fr) * 1998-04-11 1999-10-21 Krupp Uhde Gmbh Appareil d'electrolyse pour produire des gaz halogene
DE102006046808A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle mit gewölbter Elektrodenstruktur
DE102006046807A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle
EP1844183B1 (fr) * 2005-01-25 2012-03-07 Uhdenora S.p.A Cellule d'electrolyse a surface de membrane active agrandie

Families Citing this family (17)

* 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
DE3943362C2 (de) * 1989-12-30 1993-11-11 Werner Ziem Bipolare Elektrolysezelle
DE19641125A1 (de) * 1996-10-05 1998-04-16 Krupp Uhde Gmbh Elektrolyseapparat zur Herstellung von Halogengasen
DE19740673C2 (de) * 1997-09-16 2001-10-31 Krupp Uhde Gmbh Elektrolyseapparat
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
US6761808B1 (en) 1999-05-10 2004-07-13 Ineos Chlor Limited Electrode structure
DE10022604A1 (de) * 2000-05-09 2001-11-29 Krupp Uhde Gmbh Verfahren zur Herstellung von elektrischen Kontaktstreifen
DE102004028761A1 (de) 2004-06-16 2006-01-12 Uhdenora Technologies S.R.L. Elektrolysezelle mit optimierter Schalenkonstruktion und minimierter Membranfläche
DE102005003526A1 (de) * 2005-01-25 2006-07-27 Uhdenora S.P.A. Elektrolysezellen mit einer segmentierten und monolithischen Elektrodenkonstruktion
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
US20100276278A1 (en) * 2009-04-30 2010-11-04 Doug Bender Modular electrolysis device
WO2017205676A1 (fr) 2016-05-26 2017-11-30 Calera Corporation Ensemble anode, bandes de contact, cellule électrochimique, et leurs procédés d'utilisation et de fabrication
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 (fr) 2021-06-07 2022-12-15 thyssenkrupp nucera AG & Co. KGaA Cellule d'électrolyse et électrolyseur

Citations (3)

* 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
EP0021633A2 (fr) * 1979-06-11 1981-01-07 Diamond Shamrock Corporation Cellule à membrane monopolaire ayant un corps en métal laminé
EP0111149A1 (fr) * 1979-11-29 1984-06-20 De Nora Permelec S.P.A. Méthode pour connecter électriquement des supports d'anode en métal valve à des supports de cathode en métal cathodiquement résistant, à travers une plaque bipolaire, et un élément bipolaire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647953A (en) * 1979-09-20 1981-04-30 Matsushita Electric Ind Co Ltd Tone arm driver
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

Patent Citations (3)

* 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
EP0021633A2 (fr) * 1979-06-11 1981-01-07 Diamond Shamrock Corporation Cellule à membrane monopolaire ayant un corps en métal laminé
EP0111149A1 (fr) * 1979-11-29 1984-06-20 De Nora Permelec S.P.A. Méthode pour connecter électriquement des supports d'anode en métal valve à des supports de cathode en métal cathodiquement résistant, à travers une plaque bipolaire, et un élément bipolaire

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436146A1 (fr) * 1989-12-12 1991-07-10 Hoechst Aktiengesellschaft Procédé de régénération électrochimique d'acide chromosulfurique
EP0565836A1 (fr) * 1992-04-16 1993-10-20 Heraeus Elektrochemie Gmbh Cellule électrochimique à membrane
EP0776996A1 (fr) 1995-11-22 1997-06-04 De Nora S.P.A. Electrode pour électrolyseurs à membrane
WO1999053122A1 (fr) * 1998-04-11 1999-10-21 Krupp Uhde Gmbh Appareil d'electrolyse pour produire des gaz halogene
EP1844183B1 (fr) * 2005-01-25 2012-03-07 Uhdenora S.p.A Cellule d'electrolyse a surface de membrane active agrandie
DE102006046808A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle mit gewölbter Elektrodenstruktur
DE102006046807A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle

Also Published As

Publication number Publication date
DE3562024D1 (en) 1988-05-05
JPS61166990A (ja) 1986-07-28
EP0189535B1 (fr) 1988-03-30
US4664770A (en) 1987-05-12
DE3501261A1 (de) 1986-07-17
ATE33271T1 (de) 1988-04-15
SU1618281A3 (ru) 1990-12-30
IN166591B (fr) 1990-06-09
JPH07103471B2 (ja) 1995-11-08

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