EP0412600B1 - Rahmen für Elektrolyseur der Filterpressenbauart und monopolarer Elektrolyseur der Filterpressenbauart - Google Patents

Rahmen für Elektrolyseur der Filterpressenbauart und monopolarer Elektrolyseur der Filterpressenbauart Download PDF

Info

Publication number
EP0412600B1
EP0412600B1 EP90202084A EP90202084A EP0412600B1 EP 0412600 B1 EP0412600 B1 EP 0412600B1 EP 90202084 A EP90202084 A EP 90202084A EP 90202084 A EP90202084 A EP 90202084A EP 0412600 B1 EP0412600 B1 EP 0412600B1
Authority
EP
European Patent Office
Prior art keywords
vertical
electrolysis
sheets
frame
frame unit
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 - Lifetime
Application number
EP90202084A
Other languages
English (en)
French (fr)
Other versions
EP0412600A1 (de
Inventor
Emile Cabaraux
Eric Paulus
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.)
Solvay SA
Original Assignee
Solvay 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 Solvay SA filed Critical Solvay SA
Priority to AT90202084T priority Critical patent/ATE102661T1/de
Publication of EP0412600A1 publication Critical patent/EP0412600A1/de
Application granted granted Critical
Publication of EP0412600B1 publication Critical patent/EP0412600B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to electrolysers of the filter press type for the electrolytic production of a gas and to frames used in the construction of these electrolysers.
  • Electrolysers of the filter press type are generally formed by a stack of vertical frames which delimit alternately anodic and cathodic electrolysis chambers, in which electrodes are arranged vertically. Selectively permeable membranes or electrolyte permeable diaphragms can be inserted between the frames to separate the electrolysis chambers.
  • the invention mainly relates to chassis used in the construction of electrolysers of this type, these chassis each comprising a vertical frame delimiting an electrolysis chamber; this contains an electrode formed by a pair of metal sheets, vertical, perforated, facing each other; horizontal metal bars are inserted between the sheets and fixed to them by suitable joining elements.
  • the metal bars and the junction elements serve to support the sheets of the electrode in the electrolysis chamber and participate in their connection to a current source. They must be designed to allow vertical circulation of the electrolyte and the products of electrolysis between the plates of the electrode. To this end, it has been proposed to give the bars a cross section less than the spacing between the sheets and to use, for the junction elements of the vertical bars, inserted between the horizontal bars and the sheets of the electrode.
  • the vertical bars can have very diverse profiles (DE-A-2821984; JP-A-58-123885).
  • JP-A-58-123885 it is proposed to use, for the vertical bars, curved strips in the shape of a gutter.
  • the horizontal bars and the vertical bars form a lattice assembly in the electrolysis chamber, which harms a standardization of the conditions of electrolysis. This disadvantage is especially noticeable in the case where a gas is generated on the electrode during the electrolysis, the trellis assembly constituting an obstacle to a circulation of the gas and the electrolyte in the electrolysis chamber.
  • the invention overcomes this disadvantage of the known chassis described above, by providing a chassis of new design which facilitates the natural circulation of the gas and the electrolyte during electrolysis and standardizes the conditions of electrolysis within the chamber. electrolysis.
  • the frame can have any profile compatible with the construction of an electrolyser of the filter press type. It can either have a circular or polygonal profile, for example square, trapezoidal or rectangular. It must be made of a material which chemically withstands the conditions of electrolysis. It can for example be made of titanium or nickel, depending on whether it is intended to form an anode chamber or a cathode chamber in an electrolyser for the electrolysis of aqueous solutions of sodium chloride.
  • the metal sheets forming the electrode can be, for example, metal sheets pierced with openings, expanded metal sheets or lattices.
  • the choice of sheet material depends on the destination of the electrode.
  • the sheets may be of iron, steel, nickel or in any other conductive material, active for the electrolytic production of hydrogen, such as, for example, those described in patents EP-A-8476, FR-A-2460343, EP-A-113931, EP-A-131978 ( SOLVAY & Cie).
  • the sheets may advantageously be made of a film-forming conductive material selected from titanium, the tantalum, niobium, zirconium, tungsten and the alloys of these metals, carrying an active conductive coating of a material selected from platinum, ruthenium, rhodium, palladium, osmium, iridium and alloys and compounds of these metals, especially their oxides.
  • Electrodes specially adapted for the production of chlorine by electrolysis of aqueous sodium chloride solutions are those in which the active coating material comprises a mixture of ruthenium oxide and titanium dioxide or one of the compounds described in the patents BE-A-769677, BE-A-769678, BE-A-769679, BE-A-776709, BE-A-785605 (SOLVAY & Cie).
  • the metal bars have a thickness less than the spacing between the two sheets forming the electrode. They are arranged horizontally or obliquely between the sheets to which they are connected by vertical U-shaped metal profiles.
  • U or V profiles is intended to denote profiles of convex cross section, having the configuration of a gutter. According to the invention, the profiles can therefore have a semi-circular, semi-oval, or semi-polygonal cross section.
  • the bars and the profiles cooperate to convey the electric current between a current source and the sheets of the electrode during an electrolysis operation. Alternatively, they can also cooperate to support the sheets of the electrode in the frame. Their convex cross section also gives the profiles good resistance to bending, so that these also serve as stiffeners for the electrode sheets. Bars and profiles must be made of an electrically conductive material capable of withstanding the chemical environment during electrolysis.
  • composite bars are used, comprising a core made of a metal or alloy that is a good conductor of electricity (for example copper or aluminum) in a titanium or nickel sheath. Such composite bars can for example be obtained by a metallurgical operation of cofiling.
  • the vertical profiles can consist of metal strips, for example made of titanium or nickel, folded to give them the required U or V profile defined above.
  • the vertical plates can be made of any material capable of withstanding the stresses of a mechanical, thermal and chemical nature normally prevailing in electrolysers. They can be made of metal or of a polymeric material.
  • the U or V profiles are arranged symmetrically, in pairs, on either side of the bars.
  • the two profiles of each pair are connected to each other by the vertical plates joining the bars, so as to form a vertical chimney.
  • the space delimited between the two sheets of the electrode is thus partitioned by chimneys, so that, during electrolysis, the electrolyte is subjected to an upward movement between the chimneys, under the action of the gas generated at the electrode and a downward movement in these chimneys. It follows an internal circulation of the electrolyte inside the electrolysis chamber, which is favorable to a standardization of the conditions of electrolysis.
  • the internal space of the chimneys is not the seat of a gas release.
  • the internal space of the chimneys must be isolated from the electrodes; in addition, the faces of the profiles and plates, which are oriented towards the inside of the chimneys must be made of a material which does not participate in the electrolysis reaction during the operation of the electrolyser.
  • the frame comprises two vertical uprights connected by two horizontal beams, and the two beams are designed to form two internal channels which are pierced with openings on their respective walls which face each other in the electrolysis chamber; one of the channels is connected to an electrolyte intake duct and the other channel is connected to a duct for discharging the products of electrolysis.
  • the channels of the side members serve to distribute the electrolyte in the electrolysis chamber and to evacuate the products resulting from the electrolysis. It is preferably the channel of the lower beam which is connected to the electrolyte intake duct, the channel of the upper beam being connected to the duct for discharging the electrolysis products.
  • the chassis according to the invention is intended to be integrated into an electrolyser of the monopolar type.
  • the invention therefore also relates to an electrolyser of the monopolar type, filter press, comprising a stack of frames in accordance with the invention, delimiting electrolysis chambers alternately anodic and cathodic.
  • the invention applies especially to electrolysers of this type, in which the electrolysis chambers are separated by separators permeable to ions.
  • the separators are sheets interposed between the successive frames of the stack and made of a material capable of being traversed by an ion current during the operation of the electrolyser. They can be either diaphragms permeable to aqueous electrolytes or membranes with selective permeability.
  • diaphragms that can be used in electrolysers according to the invention are asbestos diaphragms, such as those described in patent US-A-1855497 (STUART) and in patents FR-A-2400569, EP-A-1644 and EP -A-18034 (SOLVAY & Cie) and diaphragms in organic polymers, such as those described in patents FR-A-2170247 (IMPERIAL CHEMICAL INDUSTRIES PLC) and in patents EP-A-7674 and EP-A-37140 ( SOLVAY & Cie).
  • asbestos diaphragms such as those described in patent US-A-1855497 (STUART) and in patents FR-A-2400569, EP-A-1644 and EP -A-18034 (SOLVAY & Cie)
  • diaphragms in organic polymers such as those described in patents FR-A-2170247 (IMPERIAL CHEMICAL INDUSTRIES PLC) and
  • membranes with selective permeability is understood to mean thin, non-porous membranes comprising an ion-exchange material.
  • the choice of the material constituting the membranes and of the ion exchange material will depend on the nature of the electrolytes subjected to the electrolysis and on the products which it is sought to obtain.
  • the membrane material is chosen from those which are capable of withstanding the thermal and chemical conditions normally prevailing in the electrolyser during electrolysis, the ion exchange material being chosen from anion exchange materials or cation exchange materials, depending on the electrolysis operations for which the electrolyser is intended.
  • membranes which are well suited are cationic membranes in fluorinated polymer, preferably perfluorinated, containing cationic functional groups derived from sulfonic acids, carboxylic acids or phosphonic acids or mixtures of such functional groups.
  • membranes of this type are those described in patents GB-A-1497748 and GB-A-1497749 (ASAHI KASEI KOGYO KK), GB-A-1518387, GB-A-1522877 and US-A-4126588 (ASAHI GLASS COMPANY LTD) and GB-A-1402920 (DIAMOND SHAMROCK CORP.).
  • Membranes which are particularly suitable for this application of the cell according to the invention are those known under the names "NAFION” (DU PONT DE NEMOURS & Co) and "FLEMION” (ASAHI GLASS COMPANY LTD).
  • the electrolysers according to the invention find a especially advantageous application for the production of chlorine and aqueous solutions of sodium hydroxide by electrolysis of aqueous solutions of sodium chloride.
  • the invention is specifically applied to monopolar electrolysers of the filter press type with cationic membranes, for the production of chlorine, hydrogen and aqueous solutions of sodium hydroxide by electrolysis of aqueous solutions of chloride of sodium.
  • the chassis according to the invention is intended to form an anode chamber of the electrolyser. It comprises a vertical frame generally designated by the reference notation 1, having an approximately square cross section.
  • the frame 1 comprises two vertical uprights 2 and 3 made of titanium, welded to two longitudinal members 4 and 5 also made of titanium.
  • the space 13 circumscribed by the frame 1 constitutes a room anodic electrolysis.
  • This contains an anode formed by a pair of vertical sheets 6 of expanded metal, arranged on either side of several horizontal metal bars 7.
  • the sheets 6 are welded to vertical sections 8 which are also welded to the bars horizontal 7.
  • the bars 7 are welded to the uprights 2 and 3 of the frame, which they pass through. They are fixed together to a junction bar 24, intended to be coupled to a current source.
  • the bars 6 and the profiles 8 thus cooperate in the coupling of the sheets 6 to the current source and to the support of these sheets inside the frame 1.
  • the sheets 6 are titanium sheets, carrying an electrically conductive coating, with low overvoltage for the electrochemical oxidation of chloride ions. Such coatings are well known in the art of electrolysis.
  • the bars 7 include a copper core lined in a titanium casing.
  • the vertical sections 8, better visible in Figures 2, 3 and 4 are each formed of a vertical strip of titanium, folded in the form of U or ⁇ , so as to have the shape of a gutter. They are fixed to the sheets 6 along the axial middle part 9 of the U and to the bars 7 along their marginal strips 10 ( Figure 4).
  • the vertical profiles 8 are arranged symmetrically, in pairs, on either side of the bars 7.
  • the two profiles 8 of each pair are joined by vertical plates 11, extending between the successive bars 7, so as to form a vertical chimney 12 between the two sheets 6.
  • the vertical plates 11 are titanium sheets, welded to the marginal strips 10 of the bars 8 ( Figure 4).
  • Each chimney 12 is thus isolated from the sheets 6 forming the anode, so that it is not the site of chlorine formation during the electrolysis of an aqueous solution of sodium chloride in contact with the sheets 6.
  • the upper and lower ends of the profiles 8 are kept apart from the side members 4 and 5 of the frame 1, so that the chimneys 12 open into the electrolysis chamber at their two ends.
  • the longitudinal members 5 and 4 and the upright 3 of the frame 1 are designed to form internal channels of square or rectangular section which will respectively serve to introduce an aqueous solution of sodium chloride into the electrolysis chamber 13 and to evacuate the products thereof resulting from the electrolysis (chlorine and a dilute aqueous solution of sodium chloride).
  • the beams 4 and 5 are pierced with openings 14 regularly distributed over their walls which face each other in the chamber 13.
  • the lower beam 5 is provided with a tube 15 for admission into its channel 16, of the aqueous sodium chloride solution to be electrolyzed.
  • the channel 17 delimited in the upper spar 4 serves as a degassing chamber, to separate the chlorine from the dilute aqueous solution of sodium chloride leaving the electrolysis chamber 13. It opens into the channel 18 formed in the upright 3, provided a tube 19 for the extraction of chlorine and a tube 20 for the extraction of the dilute sodium chloride solution.
  • a threshold 21 separating the channels 17 and 18 is used to maintain a constant level of solution in the channel 17.
  • the electrolysis chamber 13 When the chassis shown in FIGS. 1 to 5 is in operation in an electrolyser, the electrolysis chamber 13 is filled with an aqueous solution of sodium chloride up to the upper threshold level 21.
  • An aqueous solution of sodium chloride is introduced continuously into the channel 16, via the tubing 15, enters the electrolysis chamber 13 through the openings 14 and is driven from bottom to top therein by the chlorine which is generated on the sheets 6 of l 'anode.
  • the vertical chimneys 12 are not the seat of a release of chlorine, so that the density of the solution which is there is greater than that of the emulsion in the remaining part of the chamber 13.
  • An internal electrolyte circulation is thus established in the chamber 13: the electrolyte entering the chamber via the channel 16 is driven in an upward movement between the sheets 6, a fraction of it is removed with the chlorine by the channel 17 and another fraction is recycled at the bottom of the chamber 13 via the chimneys 12.
  • the internal circulation of electrolyte in the chamber 13 is favorable to better homogenization and, therefore, to an optimum energy efficiency of the electrolysis operation.
  • the chlorine separates from the aqueous sodium chloride solution and is evacuated through the tube 19.
  • the aqueous solution overflows above the threshold 21 and passes into the vertical channel 18, from where it is evacuated by tubing 20.
  • the invention has been applied to a chassis of an anode chamber of the electrolyser.
  • the uprights 2 and 3 and the side members 4 and 5 of the frame 1 are made of nickel
  • the sheets 6 form a cathode and are made of nickel (and possibly carry a conductive coating with low overvoltage for the reduction of protons)
  • the bars 7 are made of nickel or include a copper core lined with a nickel casing and the profiles 8 and the plates 11 are made of nickel.
  • intermediate pieces 22 are interposed between the sheets 6 and the middle part 9 of each of the profiles 8.
  • These intermediate pieces 22 are made of an electrically conductive material and are welded to the sheets 6 and to the profiles 8. They can either be rods which extend over the entire height of the profiles 8, or regularly spaced studs. They have the function of ensuring a substantial spacing between the sheets 6 and the sections 8, so as to allow an electrolyte passage between the sheets and the sections.
  • This embodiment of the chassis according to the invention is specially intended for membrane electrolysers, in which it is necessary to ensure effective wetting of the membrane by the electrolyte located in the electrolysis chamber 13.
  • FIG. 6 shows another embodiment of the chassis according to the invention, also designed to ensure effective wetting of the membrane by the electrolyte.
  • the middle part 9 of the sections 8 is pierced with holes 31; a vertical partition 32 joining the two wings 33 of the profile insulates the chimney 12 from a vertical channel 34.
  • the part of the wings 33, located between the middle part 9 and the partition 32 can optionally be perforated to facilitate communication between the chamber 13 and channel 34.
  • the openings 14 of the upper spar 4 of the chassis 1 have their edge 23 chamfered in the direction for which the cross section of the opening goes decreasing in bottom up. This embodiment of the invention accelerates the passage of gas from the chamber 13 to the channel 17, during the electrolysis.
  • the electrolyser shown in FIG. 8 is formed by a stack of vertical frames, alternately anodic 25 and cathodic 25 '.
  • the anode frames 25 are similar to those described above, with reference to FIGS. 1 to 7.
  • the cathode frames 25 ' are similar to the anode frames 25, in which the constituent elements in titanium have been replaced by similar elements in nickel.
  • These nickel elements of the chassis 25 ' have the same reference numbers as their respective counterparts of the chassis 25, but are assigned a prime index (').
  • the frames 25 and 25 ′ are separated by cationic membranes 26, which thus delimit alternately anodic and cathodic electrolysis chambers.
  • the stack of frames 25 and 25 ′ and membranes 26 is retained between end plates 27, connected by tie rods not shown, seals 28 ensuring sealing.
  • the vertical junction bars 24 (FIG. 1) of the anode frames 25 are coupled to a bus bar connected to the positive terminal of a direct current source, the junction bars, the bus bar and the current source not being visible in Figure 7.
  • the cathode frames 25 ' are connected to a common bus bar, connected to the negative terminal of the DC source.
  • the pipes 15 of the anode frames 25 ( Figures 1 and 5) open into a common manifold for the admission of an aqueous sodium chloride solution, this manifold as well as the tubes 15 not being visible in FIG. 7.
  • the corresponding tubes of the cathode frames 25 ′ open into a common collector of admission of water or a dilute aqueous solution of sodium hydroxide.
  • the pipes 19 and 20 of the anode frames 25 open respectively into two general collectors 29 and 30, the collector 29 serving for the evacuation of the chlorine produced in the anode chambers 13 and the collector 30 serving for the evacuation of the dilute chloride solution. sodium.
  • the pipes 19 'and 20' of the cathode frames 25 ' open respectively into two general collectors 29' and 30 ', the manifold 29' serving for the evacuation of the hydrogen produced in the cathode chambers 13 'and the 30 'collector for the discharge of a concentrated aqueous solution of sodium hydroxide.
  • the hydrostatic pressure prevailing in the electrolysis chambers 13 of the anode frames 25 is usually lower than that prevailing in the chambers 13 'of the cathode frames 25'. It follows that the membranes 26 are pushed against the sheets 6 of the anodes. Because of their convex cross section, the vertical profiles 8 effectively oppose bending of the sheets 6.
  • the vertical profiles 8 ′ of the frames 25 ′ prevent bending of the sheets 6 ′ of the cathodes .

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)

Claims (10)

  1. Gestell für Elektrolysegerät vom Typ einer Filterpresse, umfassend:
    - einen vertikalen Rahmen (1), der eine Elektrolysekammer (13) begrenzt;
    - eine Elektrode in der Elektrolysekammer, umfassend ein Paar vertikaler durchbrochener metallischer Bleche (6), die einander gegenüberliegend angeordnet sind;
    - eine Stromzuleitung zur Elektrode, umfassend horizontale oder schräge metallische Stäbe (7), die zwischen den Blechen (6) und Verbindungselementen von den Stäben zu den Blechen angeordnet sind;
    dadurch gekennzeichnet, daß die Verbindungselemente vertikale metallische Profilpaare (8) in U- oder V-Form umfassen, die die symmetrisch beiderseits der Stäbe (7) angeordnet und durch vertikale Platten (11) verbunden sind, welche die Stäbe (7) verbinden, so daß in der Elektrolysekammer (13) vertikale Kamine (12) gebildet werden.
  2. Gestell nach Anspruch 1, dadurch gekennzeichnet, daß die vertikalen Profile (8) mit ihren Längsschenkeln (33, 10) an den Stäben (7) und in ihrem mittleren Teil (9) an den Blechen (6) angeschweißt sind.
  3. Gestell nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Seiten der Profile (8) und der Platten (11), die zum Inneren der Kamine (12) hin gerichtet sind, aus einem Material bestehen, das an der Elektrolysereaktion nicht teilnimmt.
  4. Gestell nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der mittlere Teil (9) der Profile (8) von Löchern (31) durchsetzt ist, und eine die beiden Schenkel (33) des Profils (8) verbindende vertikale Trennwand (32) den vertikalen Kamin (12) von einem vertikalen Kanal (34) trennt, der sich entlang des mittleren Teils (9) des Profils (8) erstreckt.
  5. Gestell nach einem beliebigen der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Rahmen (1) zwei vertikale Ständer (2, 3) umfaßt, die durch zwei horizontale Längsträger (4, 5) verbunden sind.
  6. Gestell nach Anspruch 5, dadurch gekennzeichnet, daß die Längsträger (4, 5) innere Kanäle (16, 17) bilden, die auf ihren jeweiligen Wänden, welche sich in der Elektrolysekammer (13) gegenüberliegen, von Öffnungen (14) durchsetzt sind, wobei die Kanäle (16, 17) mit Leitungen für den Einlaß und den Auslaß eines Elektrolyten in Verbindung stehen.
  7. Gestell nach Anspruch 6, dadurch gekennzeichnet, daß der Kanal (16) des unteren Längsträgers (5) mit der Elektrolyteinlaßleitung verbunden ist, und der Kanal (17) des oberen Längsträgers (4) mit der Elektrolytauslaßleitung verbunden ist.
  8. Gestell nach Anspruch 7, dadurch gekennzeichnet, daß die Elektolytauslaßleitung einen inneren Kanal (18) eines Ständers (3) des Gestells (1) umfaßt.
  9. Elektrolysegerät vom Typ einer Filterpresse und einpolig, umfassend ein Paket von Gestellen (25, 25'), die wechselweise anodische (13) und kathodische (13') Elektroysekammern begrenzen, enthaltend vertikale Elektroden, dadurch gekennzeichnet, daß es Gestelle gemäß einem beliebigen der Ansprüche 1 bis 8 enthält.
  10. Elektrolysegerät nach Anspruch 9, dadurch gekennzeichnet, daß es Membranen mit selektiver Permeabilität (26) umfaßt, die sich mit den Gestellen (25, 25') abwechseln.
EP90202084A 1989-08-11 1990-07-31 Rahmen für Elektrolyseur der Filterpressenbauart und monopolarer Elektrolyseur der Filterpressenbauart Expired - Lifetime EP0412600B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90202084T ATE102661T1 (de) 1989-08-11 1990-07-31 Rahmen fuer elektrolyseur der filterpressenbauart und monopolarer elektrolyseur der filterpressenbauart.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8900867A BE1004364A3 (fr) 1989-08-11 1989-08-11 Chassis pour electrolyseur du type filtre-presse et electrolyseur monopolaire du type filtre-presse.
BE8900867 1989-08-11

Publications (2)

Publication Number Publication Date
EP0412600A1 EP0412600A1 (de) 1991-02-13
EP0412600B1 true EP0412600B1 (de) 1994-03-09

Family

ID=3884282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90202084A Expired - Lifetime EP0412600B1 (de) 1989-08-11 1990-07-31 Rahmen für Elektrolyseur der Filterpressenbauart und monopolarer Elektrolyseur der Filterpressenbauart

Country Status (20)

Country Link
US (1) US5130008A (de)
EP (1) EP0412600B1 (de)
JP (1) JP3053199B2 (de)
CN (1) CN1049875A (de)
AR (1) AR242998A1 (de)
AT (1) ATE102661T1 (de)
AU (1) AU623032B2 (de)
BE (1) BE1004364A3 (de)
BR (1) BR9003960A (de)
CA (1) CA2023126C (de)
DD (1) DD297191A5 (de)
DE (1) DE69007205T2 (de)
ES (1) ES2050937T3 (de)
HR (1) HRP920972A2 (de)
HU (1) HUT57288A (de)
NO (1) NO302486B1 (de)
PL (1) PL164675B1 (de)
PT (1) PT94871B (de)
TR (1) TR24979A (de)
ZA (1) ZA906097B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100257807B1 (ko) * 1991-05-30 2000-06-01 엔.프럼 전기분해 셀 전극 챔버 및 이를 이용한 전기분해도금 및 금속층 제거방법
IT1251419B (it) * 1991-10-23 1995-05-09 Solvay Cella di elettrolisi per la produzione di un gas
DE4208057C2 (de) * 1992-03-13 1993-12-23 Deutsche Aerospace Zellaufbau für Elektrolyseure und Brennstoffzellen
GB9224372D0 (en) * 1992-11-20 1993-01-13 Ici Plc Electrolytic cell and electrode therefor
IT1273492B (it) * 1995-02-03 1997-07-08 Solvay Cassone d'estremita' di un elettrodializzatore,elettrodializzatore munito di un tale cassone e utilizzazione di detto elettrodializzatore
CN1048041C (zh) * 1995-07-27 2000-01-05 北京化工机械厂 单极式离子膜电解装置
JPH11106977A (ja) * 1997-09-30 1999-04-20 Asahi Glass Co Ltd 複極型イオン交換膜電解槽
JP4007565B2 (ja) * 1998-05-11 2007-11-14 クロリンエンジニアズ株式会社 イオン交換膜電解槽
DE19850071A1 (de) * 1998-10-30 2000-05-04 Bayer Ag Membran-Elektrolysezelle mit aktiver Gas-/Flüssigkeitstrennung
US6396190B1 (en) 1999-06-07 2002-05-28 Lg Electronics Inc. Brushless dc motor in washing machine
EP1528126A1 (de) * 2003-10-30 2005-05-04 Vandenborre Hydrogen Systems N.V. Integriertes Elektrolysiermodul mit internem Gas/Flüssigkeit-Abscheider
CN1316063C (zh) * 2004-04-09 2007-05-16 阜新竞欣电化有限责任公司 压滤式复极离子膜单元电解槽
DE102006028168A1 (de) * 2006-06-16 2007-12-20 Uhde Gmbh Vorrichtung zur elektrochemischen Wasseraufbereitung
CL2015003030A1 (es) * 2015-10-13 2016-07-22 Transducto S A Dispositivo tipo filtro prensa para electrodepositar metal desde soluciones, el cual está compuesto por elementos separadores conformados por membranas de intercambio iónico formando una pluralidad de cámaras de anolitos y catalitos, en donde los electrodos están conectados en serie con despegue automático del producto metálico.
CN105274559B (zh) * 2015-11-19 2017-11-03 浙江科菲科技股份有限公司 一种双管网状阳极

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4340460A (en) * 1980-11-24 1982-07-20 Olin Corporation Internal downcomer for electrolytic recirculation
JPS58123885A (ja) * 1982-01-20 1983-07-23 Kanto Denka Kogyo Kk イオン交換膜法食塩電解槽用陰極構造体
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

Also Published As

Publication number Publication date
AU623032B2 (en) 1992-04-30
PL164675B1 (pl) 1994-09-30
NO903526D0 (no) 1990-08-10
DE69007205D1 (de) 1994-04-14
TR24979A (tr) 1992-09-01
HUT57288A (en) 1991-11-28
HRP920972A2 (hr) 1994-04-30
NO302486B1 (no) 1998-03-09
PT94871A (pt) 1991-04-18
ZA906097B (en) 1991-05-29
HU904977D0 (en) 1991-01-28
JP3053199B2 (ja) 2000-06-19
CA2023126C (fr) 2000-11-28
PL286433A1 (en) 1991-02-25
CA2023126A1 (fr) 1991-02-12
AR242998A1 (es) 1993-06-30
ES2050937T3 (es) 1994-06-01
PT94871B (pt) 1997-11-28
BR9003960A (pt) 1991-09-03
NO903526L (no) 1991-02-12
JPH03177593A (ja) 1991-08-01
US5130008A (en) 1992-07-14
DD297191A5 (de) 1992-01-02
BE1004364A3 (fr) 1992-11-10
ATE102661T1 (de) 1994-03-15
DE69007205T2 (de) 1994-06-30
EP0412600A1 (de) 1991-02-13
AU6086690A (en) 1991-02-14
CN1049875A (zh) 1991-03-13

Similar Documents

Publication Publication Date Title
EP0412600B1 (de) Rahmen für Elektrolyseur der Filterpressenbauart und monopolarer Elektrolyseur der Filterpressenbauart
US4013525A (en) Electrolytic cells
RU2709541C2 (ru) Электродное устройство, электродные узлы и электролизеры
JPH03173789A (ja) ペルオキシ‐又は過ハロゲン化化合物を製造するためのフイルター型の電解槽
FR2461021A1 (fr) Cellule electrolytique et electrolyseur bipolaire
JPS6041717B2 (ja) 隔膜型電解槽用陽極−膜装置
FI71357C (fi) Monopolar elektrolyscell av filterpresstyp
CA2168325C (fr) Caisson d'extremite d'un electrodialyseur, electrodialyseur equipe d'un tel caisson et utilisation dudit electrodialyseur
EP0400712B1 (de) Rahmen für Elektrolyseure der Filterpressenbauart und Elektrolyseure der Filterpressenbauart
EP0435385B1 (de) Elektrolytische Zelle für Gas-Herstellung, die ein Stapel von senkrechten Rahmen enthält
CA1334019C (fr) Electrolyseur du type filtre-presse
CA1117473A (en) Electrolytic cell
CA1106314A (fr) Cellule d'electrolyse a membrane pour la production d'un gaz
EP0088461B1 (de) Elektrode zur elektrolytischen Gasherstellung und Elektrolysezelle mit selektiv-durchlässiger Membran
CA2080519A1 (fr) Cellule d'electrolyse pour la production d'un gaz
LU86982A1 (fr) Electrode pour cellule d'electrolyse et electrolyseur du type monopolaire
JPS61117295A (ja) 膜型電解槽のイオン交換膜を電解槽操業期間中常に張りつめた状態に維持する方法
BE699699A (de)
LU86426A1 (fr) Procede pour le production electrolytique d'un gaz dans une cellule a membrane et chlore obtenu par ce procede
JPH0112837B2 (de)

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

Kind code of ref document: A1

Designated state(s): AT CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19901227

17Q First examination report despatched

Effective date: 19930310

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

Owner name: SOLVAY

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

Owner name: SOLVAY (SOCIETE ANONYME)

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19940309

Ref country code: DK

Effective date: 19940309

REF Corresponds to:

Ref document number: 102661

Country of ref document: AT

Date of ref document: 19940315

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

REF Corresponds to:

Ref document number: 69007205

Country of ref document: DE

Date of ref document: 19940414

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940329

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2050937

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

EAL Se: european patent in force in sweden

Ref document number: 90202084.1

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000605

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000614

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20000711

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20000712

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000726

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000728

Year of fee payment: 11

Ref country code: DE

Payment date: 20000728

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20000731

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010801

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020329

EUG Se: european patent has lapsed

Ref document number: 90202084.1

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20020810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050731