EP0095039B1 - Membran-Elektrolysezelle - Google Patents

Membran-Elektrolysezelle Download PDF

Info

Publication number
EP0095039B1
EP0095039B1 EP83103915A EP83103915A EP0095039B1 EP 0095039 B1 EP0095039 B1 EP 0095039B1 EP 83103915 A EP83103915 A EP 83103915A EP 83103915 A EP83103915 A EP 83103915A EP 0095039 B1 EP0095039 B1 EP 0095039B1
Authority
EP
European Patent Office
Prior art keywords
membrane
electrode
bars
grid bars
anode
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
EP83103915A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0095039A3 (en
EP0095039A2 (de
Inventor
Helmut Ing. Schmitt (Grad.)
Helmuth Dipl.-Ing. Schurig
Wolfgang Dr. Strewe
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 EP0095039A2 publication Critical patent/EP0095039A2/de
Publication of EP0095039A3 publication Critical patent/EP0095039A3/de
Application granted granted Critical
Publication of EP0095039B1 publication Critical patent/EP0095039B1/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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form

Definitions

  • the invention relates to a membrane electrolysis cell of the filter press type with pairs of planar electrodes, each of which contains at least one perforated active middle part, with a membrane arranged between the paired electrodes and lying against them and in each case between the electrode edge and membrane edge, the perforated middle part of an electrode being one has a grid-like structure, the bars of the electrodes assigned in pairs each by max. 1/2 bar width are offset from each other and the membrane is stretched smooth by the bars.
  • the electrolysis cell is suitable for the electrolysis of an aqueous, halide-containing electrolyte (brine) in order to produce an aqueous alkali metal hydroxide solution (cell liquid) and halogen and hydrogen.
  • the filter press-type electrolysis cell described therein consists of a plurality of vertically and alternately arranged flexible anode and cathode plates, each with a membrane permeable to cations installed between adjacent anode and cathode plates.
  • Anode plates, membrane and cathode plates are fixed in their distance from each other by means of non-conductive, flexible spacer plates.
  • the thickness of the spacer plates which are either covered with sealing material or themselves consist of almost incompressible sealing material, is selected so that the membrane is freely between the anode plates and cathode plates. Since the anode or cathode plates are thin, i. H.
  • electrolysis cells of the filter press type consist of planar electrodes arranged in pairs with a perforated active middle part. It is not possible to install or remove a cell unit. There is a diaphragm between the electrodes, which can be in the form of a blind, which is not stretched by the electrodes. Such an electrolysis cell thus does not achieve low voltage losses.
  • a membrane electrolysis cell with rod-shaped round electrodes is known. These round electrodes run horizontally and lie against the membrane. A wedge-shaped gas collecting space remains between the lower curve and the membrane, which greatly reduces the current transfer to the counterelectrode or increases the voltage loss. Round electrodes are not very suitable for the optimization of a membrane cell.
  • the invention has for its object to provide a monopolar filter press cell that has improved properties compared to known filter press cells.
  • the invention relates to a membrane electrolysis cell of the filter press type with pairs of planar electrodes, each of which contains at least one perforated active central part, with a membrane arranged between the paired electrodes and lying between them, and between the electrode edge and membrane edge, the perforated central part of an electrode being one has a grid-like structure, the bars of the electrodes assigned in pairs by max.
  • the bars are slats in a blind-like arrangement, such that their distance from each other is smaller than the projection of their width, the slats on that of the membrane facing side have a convex curvature and with this lie against the membrane in such a way that the distance between anode plates and cathode plates is constant in the convex area.
  • both seals between a respective electrode edge and a membrane edge can also be combined to form a seal in a modification of the invention. This then results in a seal between only one membrane edge and one electrode edge of a paired electrode with the same or less thickness than twice the height of the lattice rod portion projecting over the electrode edge. In this way, the number of parts of the membrane electrolysis cell of the filter press type can be reduced and, at the same time, the number of sealing surfaces and any leakage points.
  • the elimination of components for the supporting structure improves the gas extraction from the cells and at the same time reduces the overall length of each individual electrolysis cell.
  • the convex design of the bars on the side facing the membrane and their displacement by max. half a rod width also has the advantage that the distance between the rods between the anode plates and the cathode plates is constant in the convex region and thus a high effective electrode area is available.
  • the grid bars of the electrode plates can have any shape on the side facing away from the active side, they can also be welded to the frame of the electrode plate or attached in some other way. Ultimately, the decisive factors for the final design are the choice of materials, manufacturing costs and voltage loss in the electrolysis cell.
  • the electrode plates, anode and cathode are made of a material or coated according to the prior art.
  • the seals used also correspond to the state of the art in terms of design and material.
  • the end plates of the electrolytic cell and the required anchor bolts are designed in a known manner. So-called flags on each electrode plate are used for power supply and discharge.
  • the unit shown in Figures 1 and 2 consists of the anode plate 1 and the cathode plate 2 in a completely identical design, from the membrane 3 between the plates and from the seals 4 for clamping the membrane and the seals 5 with insert 6 for dimensional stability and with the openings 7 for different reaction media.
  • the reaction medium between two electrode packs in a mixture with product media such as hydrogen and chlorine gas does not experience any impairment of the optimal distribution concentration by any support structure elements.
  • the structure of the electrolysis cell can be seen.
  • the gaseous product media escape upwards from the louvre-like lattice bars 8, which are designed as lamellas.
  • the membrane 3, made of commercially available material, is fastened in a known manner with the seal 4, so that it is tensioned between the electrode plates according to the invention after the second electrode plate has been installed.

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)
EP83103915A 1982-05-26 1983-04-21 Membran-Elektrolysezelle Expired EP0095039B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3219704 1982-05-26
DE19823219704 DE3219704A1 (de) 1982-05-26 1982-05-26 Membran-elektrolysezelle

Publications (3)

Publication Number Publication Date
EP0095039A2 EP0095039A2 (de) 1983-11-30
EP0095039A3 EP0095039A3 (en) 1985-05-15
EP0095039B1 true EP0095039B1 (de) 1988-12-28

Family

ID=6164496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103915A Expired EP0095039B1 (de) 1982-05-26 1983-04-21 Membran-Elektrolysezelle

Country Status (6)

Country Link
US (1) US4469577A (show.php)
EP (1) EP0095039B1 (show.php)
JP (1) JPH0657874B2 (show.php)
CA (1) CA1204408A (show.php)
DE (2) DE3219704A1 (show.php)
IN (1) IN159130B (show.php)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415146A1 (de) * 1994-04-29 1995-11-02 Uhde Gmbh Elektrode für Elektrolysezellen mit Ionenaustauscher-Membran
DE102005006555A1 (de) * 2005-02-11 2006-08-17 Uhdenora S.P.A. Elektrode für Elektrolysezellen

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8303586D0 (en) * 1983-02-09 1983-03-16 Ici Plc Electrolytic cell
SE8400459L (sv) * 1984-01-30 1985-07-31 Kema Nord Ab Elektrod for elektrolysorer
US4648955A (en) * 1985-04-19 1987-03-10 Ivac Corporation Planar multi-junction electrochemical cell
SE465966B (sv) * 1989-07-14 1991-11-25 Permascand Ab Elektrod foer elektrolys, foerfarande foer dess framstaellning samt anvaendningen av elektroden
DE4224492C1 (de) * 1992-07-24 1993-12-09 Uhde Gmbh Vorrichtung zum elektrolytischen Behandeln von Flüssigkeiten mit einer Anoden- und einer Kathodenkammer sowie deren Verwendung
US5334300A (en) * 1992-12-08 1994-08-02 Osmotek, Inc. Turbulent flow electrodialysis cell
DE4306889C1 (de) * 1993-03-05 1994-08-18 Heraeus Elektrochemie Elektrodenanordnung für gasbildende elektrolytische Prozesse in Membran-Zellen und deren Verwendung
US5366606A (en) * 1993-05-17 1994-11-22 Florida Scientific Laboratories Inc. Electrolytic gas generator
US5427658A (en) * 1993-10-21 1995-06-27 Electrosci Incorporated Electrolytic cell and method for producing a mixed oxidant gas
DE19816334A1 (de) * 1998-04-11 1999-10-14 Krupp Uhde Gmbh Elektrolyseapparat zur Herstellung von Halogengasen
ITMI20031269A1 (it) * 2003-06-24 2004-12-25 De Nora Elettrodi Spa Nuovo anodo espandibile per celle a diaframma.
DE102006046807A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle
RU2427669C2 (ru) * 2006-09-29 2011-08-27 Уденора С.П.А. Электролитическая ячейка
DE102006046808A1 (de) * 2006-09-29 2008-04-03 Uhdenora S.P.A. Elektrolysezelle mit gewölbter Elektrodenstruktur
DE102006055709B3 (de) * 2006-11-23 2008-02-07 Uhdenora S.P.A. Messzelle für Elektroden und Elektrodenbeschichtungen und Verfahren zur Kontrolle von Elektroden
DE102010021833A1 (de) 2010-05-28 2011-12-01 Uhde Gmbh Elektrode für Elektrolysezelle
DE102012017306A1 (de) 2012-09-03 2014-03-06 Thyssenkrupp Uhde Gmbh Elektrochemische Zelle vom Durchflusstyp
WO2019111832A1 (ja) 2017-12-05 2019-06-13 株式会社トクヤマ アルカリ水電解用膜－電極－ガスケット複合体

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH335049A (de) * 1955-07-07 1958-12-31 Lonza Ag Elektrolyseur der Filterpressen-Bauart

Family Cites Families (31)

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DE453750C (de) * 1927-12-14 I G Farbenindustrie Akt Ges Elektrolysierzelle
DE446009C (de) * 1924-08-27 1927-06-21 Auergesellschaft Gmbh Einrichtung zur elektrolytischen Zerlegung von Salzloesungen
DE514716C (de) * 1926-06-23 1930-12-16 Raguhn Anhalter Metalllocherei Gitterfoermige Kathode
NL156233B (nl) * 1949-10-24 Societe Anonyme, Societe Industrielle Pour La Diffusion D'equipement Et De Materiel "Sidemat", Parijs. Aansluitinrichting voor apparatuur op een brandstofhouder.
DE897839C (de) * 1951-07-28 1953-11-23 Bamag Meguin Ag Vorelektrode fuer Elektrolysezellen
DE1264420B (de) * 1963-02-25 1968-03-28 Karl Hans Klaska Diaphragma-Elektrolysezelle mit vertikal rippenfoermig gefalzten Elektroden
US3661756A (en) * 1967-02-15 1972-05-09 Phelps Dodge Refining Corp Cathode for electrolyte refining of metal,such as copper
GB1324427A (en) * 1969-12-06 1973-07-25 Nippon Soda Co Electrode assembly for electrolysis cells
DE2222637A1 (de) * 1972-05-09 1973-11-29 Bayer Ag Halterahmen fuer elektroden von elektrolysevorrichtungen
JPS4916197A (show.php) * 1972-06-07 1974-02-13
IT989421B (it) * 1973-06-25 1975-05-20 Oronzio De Nora Impiantielettr Cella di elettrolisi con elettrodi di forma particolare e deflettori atti ad allontanare i gas che si sviluppano agli elettrodi fuori dal lo spazio interelettrodico
US4013525A (en) * 1973-09-24 1977-03-22 Imperial Chemical Industries Limited Electrolytic cells
FR2280432A1 (fr) * 1974-07-29 1976-02-27 Rhone Poulenc Ind Cellule d'electrolyse a elements bipolaires pour l'electrolyse notamment de solutions de sels alcalins
NO752886L (show.php) * 1974-08-26 1976-02-27 Hodogaya Chemical Co Ltd
FR2343825A1 (fr) * 1976-03-08 1977-10-07 Solvay Electrode pour la production d'un gaz dans une cellule a membrane
US4013537A (en) * 1976-06-07 1977-03-22 The B. F. Goodrich Company Electrolytic cell design
US4013535A (en) * 1976-06-07 1977-03-22 The B. F. Goodrich Company Electrolyte separator tensioning device
GB1581534A (en) * 1976-09-20 1980-12-17 Ici Ltd Electrolytic cell
FR2381835A1 (fr) * 1977-02-28 1978-09-22 Solvay Electrode pour la production d'un gaz dans une cellule d'electrolyse
GB1595193A (en) * 1977-03-04 1981-08-12 Ici Ltd Diaphragm cell
GB1595183A (en) * 1977-03-04 1981-08-12 Ici Ltd Diaphragm cell
JPS5460278A (en) * 1977-10-21 1979-05-15 Kureha Chem Ind Co Ltd Diaphragm type electrolytic bath
US4142950A (en) * 1977-11-10 1979-03-06 Basf Wyandotte Corporation Apparatus and process for electrolysis using a cation-permselective membrane and turbulence inducing means
CA1159008A (en) * 1978-12-04 1983-12-20 Sankar Das Gupta Reactor with working and secondary electrodes and polarity reversal means for treating waste water
US4175025A (en) * 1978-07-07 1979-11-20 Basf Wyandotte Corporation Sealed membrane filter press electrolytic cells
IT1118243B (it) * 1978-07-27 1986-02-24 Elche Ltd Cella di elettrolisi monopolare
US4247376A (en) * 1979-01-02 1981-01-27 General Electric Company Current collecting/flow distributing, separator plate for chloride electrolysis cells utilizing ion transporting barrier membranes
JPS5824932Y2 (ja) * 1979-04-02 1983-05-28 東亞合成株式会社 電解用陰極
DE2929043A1 (de) * 1979-07-18 1981-02-12 Reis August K Entkeimungsvorrichtung
US4313812A (en) * 1980-03-10 1982-02-02 Olin Corporation Membrane electrode pack cells designed for medium pressure operation
EP0045148B1 (en) * 1980-07-30 1985-05-08 Imperial Chemical Industries Plc Electrode for use in electrolytic cell

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH335049A (de) * 1955-07-07 1958-12-31 Lonza Ag Elektrolyseur der Filterpressen-Bauart

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415146A1 (de) * 1994-04-29 1995-11-02 Uhde Gmbh Elektrode für Elektrolysezellen mit Ionenaustauscher-Membran
DE102005006555A1 (de) * 2005-02-11 2006-08-17 Uhdenora S.P.A. Elektrode für Elektrolysezellen

Also Published As

Publication number Publication date
JPH0657874B2 (ja) 1994-08-03
IN159130B (show.php) 1987-03-28
CA1204408A (en) 1986-05-13
EP0095039A3 (en) 1985-05-15
DE3378769D1 (en) 1989-02-02
US4469577A (en) 1984-09-04
EP0095039A2 (de) 1983-11-30
DE3219704A1 (de) 1983-12-01
JPS58213886A (ja) 1983-12-12

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