EP0076747B1 - Electrolyseur du type filtre-presse - Google Patents

Electrolyseur du type filtre-presse Download PDF

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Publication number
EP0076747B1
EP0076747B1 EP82401780A EP82401780A EP0076747B1 EP 0076747 B1 EP0076747 B1 EP 0076747B1 EP 82401780 A EP82401780 A EP 82401780A EP 82401780 A EP82401780 A EP 82401780A EP 0076747 B1 EP0076747 B1 EP 0076747B1
Authority
EP
European Patent Office
Prior art keywords
electrodes
electrode
parallel
solid
plates
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
EP82401780A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0076747A1 (fr
Inventor
Gérard Pere
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.)
Creusot Loire SA
Original Assignee
Creusot Loire SA
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 Creusot Loire SA filed Critical Creusot Loire SA
Priority to AT82401780T priority Critical patent/ATE14755T1/de
Publication of EP0076747A1 publication Critical patent/EP0076747A1/fr
Application granted granted Critical
Publication of EP0076747B1 publication Critical patent/EP0076747B1/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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • 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
    • C25B9/70—Assemblies comprising two or more cells
    • C25B9/73—Assemblies comprising two or more cells of the filter-press type
    • C25B9/77—Assemblies comprising two or more cells of the filter-press type having diaphragms

Definitions

  • the present invention relates to an electrolyser of the filter press type equipped with bipolar electrodes provided with “pre-electrodes in the form of grids or perforated plates which come to be applied against the opposite faces of each diaphragm.
  • electrolysers with electrodes provided with “pre-electrodes are familiar to the skilled person, and are for example described in French patents 2,338,060, 2,416,274 and 2,448,582.
  • the present invention relates to an electrolyser of this type, in which the electrodes are constituted by solid metal plates, while the pre-electrodes are constituted by mesh or perforated plates parallel to the electrode plates and separated from them by identical bracing tongues each welded to a pre-electrode and to an electrode plate, said electrolyzer being of significantly improved design compared to known electrolyzers, such as that according to French patent 2,448,582 of the applicant, as well from the point of view of ease of manufacture than from the point of view of precautions against corrosion.
  • each spacer tab has a shape of S and is welded at one end to the associated pre-electrode on a solid strip thereof and at its other end to the associated electrode plate so as to leave a slight offset with the tab located almost continues on the opposite face of said electrode plate, in that the bracing tongues are staggered, seen in a plane parallel to the electrodes.
  • the electrolyser comprises a stack of insulating frames 10, usually called "spacer joints", which are partially shown. Electrolysis cells are housed inside this stack of insulating frames 10. These cells, partially shown, are identified for example 1 or 1 ′ in FIG. 1.
  • Each cell is delimited between two 2-plane electrode plates.
  • Each electrode plate 2 is metallic and has a small thickness. It is bathed on its two opposite faces 21 and 22 by the electrolyte.
  • Each electrode plate 2 is bipolar. One of its faces. 21 for example. is an anode on which oxygen is formed, the opposite face 22 then being a cathode on which hydrogen is formed! It is for example made of nickel.
  • Each cell is divided into two compartments 31 and 32 by a diaphragm 4. The compartment 31 located on the side of the face 21 contains the anolyte, the compartment 32 located on the side of the face 22 containing the catholyte.
  • Each diaphragm 4 is stretched in the bore of a bracing frame 10. It is for example made using an asbestos fabric.
  • Each cell also comprises two plates 5 and 6, usually called “pre-electrodes", which are arranged on either side of the diaphragm 4 of this cell so as to be pressed against this diaphragm and at a certain distance from the two plates electrodes 2 limiting this cell.
  • Each pre-electrode plate 5 or 6 is constituted by a sheet of expanded metal discontinuously, so that the pre-electrode obtained is presented as a sheet of expanded metal provided at regular intervals with solid metal strips (61, 62 , 63) of small width and parallel to the horizontal plane. It is made for example of nickel steel.
  • Each electrode plate 2 is housed between a plate 5 called the pre-electrode of a cell and a plate 6 called the pre-electrode of the neighboring cell.
  • Each diaphragm 4 is sandwiched between the two pre-electrodes 5 and 6 which contribute to its maintenance.
  • the pre-electrode plates are connected to the electrode plates by spacer tabs 7 all identical, but having, in accordance with the present invention, an S shape as is see on Figure 1, which avoids the creation of sharp angles favorable to corrosion.
  • the bracing tongues 7 are, seen in a plane parallel to the electrodes, arranged in staggered rows. They are welded at one of their two ends to the pre-electrodes 5, 6 on the metal strips such as 61, and at their other end to the corresponding electrode plate 2.
  • FIG. 1 the bracing tongues 7 are, seen in a plane parallel to the electrodes, arranged in staggered rows. They are welded at one of their two ends to the pre-electrodes 5, 6 on the metal strips such as 61, and at their other end to the corresponding electrode plate 2.
  • This construction method has the enormous advantage of allowing online transparency welding both on the solid strips such as 61 of the pre-electrodes and on the electrode plates, the online transparency welding being carried out for example by beam. of electrons in a direction parallel to the bands (61, 62, 63), as indicated by the arrow F in FIG. 2.
  • the pre-electrode plate 6 is here made up of a set of tiles ( 601, 602, etc ...) at least one side of which is parallel to the welding direction F, the central tiles having a square shape, and the side tiles being optionally cut so as to produce the outer shape of the pre-electrode 6.
  • the solid electrode 2 is constituted by a set of bands (201, 202, 204, 205, 206, 207, 208) of substantially equal width, except as regards the end bands (201, 208), at the height of the tiles (601, 602, etc.), and which are butted together by welding along the weld line F by transparency of the bracing tongues, that is to say parallel to the strips (61, 62, 63 , etc ).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Measuring Fluid Pressure (AREA)
  • Liquid Crystal (AREA)
  • Inorganic Insulating Materials (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Pens And Brushes (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
EP82401780A 1981-09-30 1982-09-30 Electrolyseur du type filtre-presse Expired EP0076747B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401780T ATE14755T1 (de) 1981-09-30 1982-09-30 Elektrolyseur der filterpressenbauart.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8118421 1981-09-30
FR8118421A FR2513663B1 (fr) 1981-09-30 1981-09-30 Electrolyseur du type filtre-presse

Publications (2)

Publication Number Publication Date
EP0076747A1 EP0076747A1 (fr) 1983-04-13
EP0076747B1 true EP0076747B1 (fr) 1985-08-07

Family

ID=9262616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401780A Expired EP0076747B1 (fr) 1981-09-30 1982-09-30 Electrolyseur du type filtre-presse

Country Status (8)

Country Link
US (1) US4440615A (no)
EP (1) EP0076747B1 (no)
JP (1) JPS5858290A (no)
AT (1) ATE14755T1 (no)
CA (1) CA1169809A (no)
DE (1) DE3265252D1 (no)
FR (1) FR2513663B1 (no)
NO (1) NO160087C (no)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561959A (en) * 1983-12-09 1985-12-31 The Dow Chemical Company Flat-plate electrolytic cell
FR2568897B1 (fr) * 1984-08-10 1988-05-20 Creusot Loire Electrolyseur a enceinte pressurisee
DE3501261A1 (de) * 1985-01-16 1986-07-17 Uhde Gmbh, 4600 Dortmund Elektrolyseapparat
FR2576325B1 (fr) * 1985-01-22 1990-02-16 Srti Soc Rech Tech Ind Electrode, ensemble d'electrode porte-electrode, son procede de realisation, electrolyseur et pile a combustible comportant ladite electrode
IT1200403B (it) * 1985-03-07 1989-01-18 Oronzio De Nora Impianti Celle elettrolitiche mono e bipolari e relative strutture elettrodiche
DE3640584A1 (de) * 1986-11-27 1988-06-09 Metallgesellschaft Ag Elektrodenanordnung fuer gasbildende elektrolyseure mit vertikal angeordneten plattenelektroden
US5100525A (en) * 1990-07-25 1992-03-31 Eltech Systems Corporation Spring supported anode
JP3110551B2 (ja) * 1992-04-30 2000-11-20 クロリンエンジニアズ株式会社 電解槽
DE19859882A1 (de) * 1998-12-23 1999-12-09 W Strewe Ionenaustauschermembranzelle für hohe Produktleistungen
WO2002049714A2 (en) * 2000-12-21 2002-06-27 Medtronic, Inc. Electrically responsive promoter system
EP1229149A1 (fr) * 2001-01-31 2002-08-07 CSEM Centre Suisse d'Electronique et de Microtechnique SA Electrode de grandes dimensions
EP1767671B1 (en) * 2005-09-26 2012-05-02 CHLORINE ENGINEERS CORP., Ltd. Three-dimensional electrode for electrolysis, ion exchange membrane electrolytic cell and method of electrolysis using the three-dimensional electrode

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1535185A (en) * 1920-01-26 1925-04-28 John P Scott Electrolytic apparatus
DE902844C (de) * 1941-12-11 1954-01-28 Demag Elektrometallurgie Gmbh Wasserzersetzer nach Filterpressenbauart
CH263970A (de) * 1948-06-26 1949-09-30 Oerlikon Maschf Bipolarelektrode für Wasserzersetzer.
DE941843C (de) * 1949-01-25 1956-04-19 Suerth Zweigniederlassung Der Vorelektrode fuer elektrolytische Zellen
CH312582A (de) * 1953-04-17 1956-01-31 Oerlikon Maschf Zelle für Elektrolyseur mit Vorelektroden aus perforiertem Blech
US4017375A (en) * 1975-12-15 1977-04-12 Diamond Shamrock Corporation Bipolar electrode for an electrolytic cell
FR2416274A2 (fr) * 1977-04-22 1979-08-31 Electricite De France Perfectionnements aux electrodes et aux electrolyseurs verticaux incorporant de telles electrodes
FR2388060A1 (fr) * 1977-04-22 1978-11-17 Electricite De France Perfectionnements aux electrodes et aux electrolyseurs verticaux incorporant de telles electrodes
JPS5446180A (en) * 1977-09-21 1979-04-11 Tokuyama Soda Co Ltd Multipolar electrode
FR2448582A1 (fr) * 1979-02-09 1980-09-05 Creusot Loire Perfectionnements aux electrolyseurs destines a l'electrolyse de l'eau sous pression
FR2460341A1 (fr) * 1979-07-04 1981-01-23 Creusot Loire Cellule d'electrolyse a pre-electrodes pour la production de gaz
JPS5638485A (en) * 1979-09-04 1981-04-13 Asahi Glass Co Ltd Electrolytic tank

Also Published As

Publication number Publication date
NO160087B (no) 1988-11-28
DE3265252D1 (en) 1985-09-12
FR2513663A1 (fr) 1983-04-01
JPS5858290A (ja) 1983-04-06
NO160087C (no) 1989-03-08
US4440615A (en) 1984-04-03
EP0076747A1 (fr) 1983-04-13
ATE14755T1 (de) 1985-08-15
CA1169809A (fr) 1984-06-26
FR2513663B1 (fr) 1986-02-28
NO822149L (no) 1983-04-05

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