EP0072907A1 - Elektrolysezelle - Google Patents

Elektrolysezelle Download PDF

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Publication number
EP0072907A1
EP0072907A1 EP82106070A EP82106070A EP0072907A1 EP 0072907 A1 EP0072907 A1 EP 0072907A1 EP 82106070 A EP82106070 A EP 82106070A EP 82106070 A EP82106070 A EP 82106070A EP 0072907 A1 EP0072907 A1 EP 0072907A1
Authority
EP
European Patent Office
Prior art keywords
anode
cathode
support structure
electrolysis
pressure member
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.)
Withdrawn
Application number
EP82106070A
Other languages
German (de)
English (en)
French (fr)
Inventor
Helmuth Dipl.-Ing. Schurig
Helmut Ing. Grad. Schmitt
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
Publication of EP0072907A1 publication Critical patent/EP0072907A1/de
Withdrawn legal-status Critical Current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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • 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 cell for producing chlorine and caustic potash by electrolysis of aqueous solutions of an alkali metal chloride.
  • the electrolysis cell system usually consists of a large number of individual cells, which are constructed in the manner of a filter press.
  • the electrodes such as the anode and cathode, lie close to the membrane or diaphragm between them, but do not damage them by excessive contact pressure, i.e. cut through such that there is a metallic contact between the anode and cathode.
  • an electrolysis cell in which the non-conductive porous material lying between the anode and cathode is a diaphragm made of asbestos or a membrane made of an ion exchange resin.
  • anode and cathode lie directly on the diaphragm. So that the electrolysis products can escape from their place of origin, the anode and cathode are designed as permeable elements.
  • the cathode, on which an asbestos fiber layer is deposited as a diaphragm, is pressed onto the anode by means of resilient supports around the outside of the electrodes. This does not guarantee that the anode will lie completely flat against the diaphragm.
  • an anode or cathode is held in direct contact with the membrane at a number of points by an electrically conductive, elastically compressible layer.
  • an elastically compressible current collector is used a rigid counter pressure plate is required.
  • the current collector consists of a network of 0.15 mm thin nickel wire. The line or point contact between the braid and the two adjacent cathode parts creates only a reduced contact area with respect to the entire cathode area. The voltage drop at this contact surface is therefore considerable.
  • the invention has for its object to avoid the disadvantages of the known electrolytic cells.
  • the surface-flexible pressure member is an electrically conductive metal plate which has punched-in and outwardly bent tongues, the area-based tongue portion being approximately 30-70% of the original plate area and the tongue surface running largely parallel to the plate surface.
  • the tongues bent outwards stand vertically in their longitudinal axis after the installation of the flexible pressure element and are in contact with the electrode.
  • the advantages achieved by the invention are, in particular, that the number of electrode parts is reduced. This reduces the number of contact points with increased current resistance for the power line.
  • the tongues have a width of the order of approx. 3-5 mm and thus ensure a much wider contact area than a wire in a wire mesh.
  • the flexible surface pressure element is given a defined flexibility so that the membrane between the electrodes is not damaged by excessive pressure.
  • the tongues 2 were given the shape shown in FIG. 2.
  • the area ratio of the support plate that remained flat to the areas of the bent tongues is approximately 1: 1.
  • the edges of the bent tongues do not damage the thin anode, the edges are either broken or slightly bent inwards.
  • FIG. 3 The structure of an anode-cathode combination according to the invention of an electrolysis cell is shown in cross section in FIG. 3.
  • the anode 4 and the cathode 5 lie tightly against the flat membrane 3.
  • the rigid pressure element 6 forms the abutment for the flexible pressure element 7. In this way it is ensured that even when the pressure element 6 is not completely flat, the electrolytically active parts such as anode 4, membrane 3 and cathode 5 are held in complete surface contact by the flexible pressure element 7 will.

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)
EP82106070A 1981-08-20 1982-07-07 Elektrolysezelle Withdrawn EP0072907A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813132947 DE3132947A1 (de) 1981-08-20 1981-08-20 Elektrolysezelle
DE3132947 1981-08-20

Publications (1)

Publication Number Publication Date
EP0072907A1 true EP0072907A1 (de) 1983-03-02

Family

ID=6139734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106070A Withdrawn EP0072907A1 (de) 1981-08-20 1982-07-07 Elektrolysezelle

Country Status (7)

Country Link
US (1) US4444639A (enrdf_load_stackoverflow)
EP (1) EP0072907A1 (enrdf_load_stackoverflow)
JP (1) JPS5837183A (enrdf_load_stackoverflow)
AR (1) AR227365A1 (enrdf_load_stackoverflow)
BR (1) BR8204820A (enrdf_load_stackoverflow)
DE (1) DE3132947A1 (enrdf_load_stackoverflow)
IN (1) IN157309B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576325A1 (fr) * 1985-01-22 1986-07-25 Srti Soc Rech Tech Ind Electrode, ensemble d'electrode porte-electrode, son procede de realisation, electrolyseur et pile a combustible comportant ladite electrode
EP0568071A1 (en) * 1992-04-30 1993-11-03 CHLORINE ENGINEERS CORP., Ltd. Electrolytic cell
EP2746429A1 (de) * 2012-12-19 2014-06-25 Uhdenora S.p.A Elektrolysezelle

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4738763A (en) * 1983-12-07 1988-04-19 Eltech Systems Corporation Monopolar, bipolar and/or hybrid membrane cell
US4673479A (en) * 1983-03-07 1987-06-16 The Dow Chemical Company Fabricated electrochemical cell
US4568434A (en) * 1983-03-07 1986-02-04 The Dow Chemical Company Unitary central cell element for filter press electrolysis cell structure employing a zero gap configuration and process utilizing said cell
US4561959A (en) * 1983-12-09 1985-12-31 The Dow Chemical Company Flat-plate electrolytic cell
SE8400459L (sv) * 1984-01-30 1985-07-31 Kema Nord Ab Elektrod for elektrolysorer
US4654136A (en) * 1984-12-17 1987-03-31 The Dow Chemical Company Monopolar or bipolar electrochemical terminal unit having a novel electric current transmission element
US4668371A (en) * 1985-12-16 1987-05-26 The Dow Chemical Company Structural frame for an electrochemical cell
US5296109A (en) * 1992-06-02 1994-03-22 United Technologies Corporation Method for electrolyzing water with dual directional membrane
JP2002516755A (ja) 1998-05-29 2002-06-11 プロートン エネルギー システムズ．インク 水の電気分解の流体管理システム
JP2000192276A (ja) * 1998-12-25 2000-07-11 Asahi Glass Co Ltd 複極型イオン交換膜電解槽
WO2001037359A2 (en) * 1999-11-18 2001-05-25 Proton Energy Systems, Inc. High differential pressure electrochemical cell
EP1378589B1 (en) * 2002-04-05 2005-12-07 CHLORINE ENGINEERS CORP., Ltd. Ion exchange membrane electrolyzer
WO2004015805A2 (en) * 2002-08-09 2004-02-19 Proton Energy Systems, Inc. Electrochemical cell support structure
DE102010026310A1 (de) 2010-07-06 2012-01-12 Uhde Gmbh Elektrode für Elektrolysezellen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433592A1 (fr) * 1978-07-27 1980-03-14 Oronzio De Nora Impianti Cellule d'electrolyse et procede de production d'halogenes
FR2448582A1 (fr) * 1979-02-09 1980-09-05 Creusot Loire Perfectionnements aux electrolyseurs destines a l'electrolyse de l'eau sous pression
GB2056493A (en) * 1979-08-03 1981-03-18 Oronzio De Nora Impianti Current distribution in cells for electrolysis of halides to generate halogens

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252643B (de) * 1960-07-11 1967-10-26 Imperial Chemical Industries Ltd London Diaphragmenzelle zur Erzeugung von Chlor und Atzkali durch Elek trolyse einer Alkalimetallchloridlosung
JPS502511B2 (enrdf_load_stackoverflow) * 1972-05-19 1975-01-27
US4056452A (en) * 1976-02-26 1977-11-01 Billings Energy Research Corporation Electrolysis apparatus
IT8025483A0 (it) * 1980-10-21 1980-10-21 Oronzio De Nora Impianti Elettrocdi per celle ad elettrolita solido applicati sulla superficie di membrane scambiatrici di ioni e procedimentodi prparazione ed uso degli stessi.
IT1122699B (it) * 1979-08-03 1986-04-23 Oronzio De Nora Impianti Collettore elettrico resiliente e cella elettrochimica ad elettrolita solido comprendente lo stesso
US4364815A (en) * 1979-11-08 1982-12-21 Ppg Industries, Inc. Solid polymer electrolyte chlor-alkali process and electrolytic cell
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
JPS57108278A (en) * 1980-12-26 1982-07-06 Asahi Glass Co Ltd Double-electrode filter press type electrolytic cell
US4331521A (en) * 1981-01-19 1982-05-25 Oronzio Denora Impianti Elettrochimici S.P.A. Novel electrolytic cell and method
US4374014A (en) * 1981-03-20 1983-02-15 The United States Of America As Represented By The Secretary Of The Navy High pressure electrolytic oxygen generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2433592A1 (fr) * 1978-07-27 1980-03-14 Oronzio De Nora Impianti Cellule d'electrolyse et procede de production d'halogenes
FR2448582A1 (fr) * 1979-02-09 1980-09-05 Creusot Loire Perfectionnements aux electrolyseurs destines a l'electrolyse de l'eau sous pression
GB2056493A (en) * 1979-08-03 1981-03-18 Oronzio De Nora Impianti Current distribution in cells for electrolysis of halides to generate halogens

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2576325A1 (fr) * 1985-01-22 1986-07-25 Srti Soc Rech Tech Ind Electrode, ensemble d'electrode porte-electrode, son procede de realisation, electrolyseur et pile a combustible comportant ladite electrode
EP0568071A1 (en) * 1992-04-30 1993-11-03 CHLORINE ENGINEERS CORP., Ltd. Electrolytic cell
EP2746429A1 (de) * 2012-12-19 2014-06-25 Uhdenora S.p.A Elektrolysezelle
WO2014095507A1 (en) * 2012-12-19 2014-06-26 Uhdenora S.P.A. Electrolytic cell

Also Published As

Publication number Publication date
US4444639A (en) 1984-04-24
AR227365A1 (es) 1982-10-15
IN157309B (enrdf_load_stackoverflow) 1986-03-01
BR8204820A (pt) 1983-08-02
DE3132947A1 (de) 1983-03-03
JPS5837183A (ja) 1983-03-04

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: UHDE GMBH

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840208

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHURIG, HELMUTH, DIPL.-ING.

Inventor name: SCHMITT, HELMUT, ING. GRAD.