EP0095039B1 - Membrane-electrolysis cell - Google Patents
Membrane-electrolysis cell Download PDFInfo
- 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
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- Prior art keywords
- membrane
- electrode
- bars
- grid bars
- anode
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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
- 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
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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
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.
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- 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)
Description
Die Erfindung betrifft eine Membran-Elektrolysezelle vom Filterpressentyp mit paarweise flächenhaften Elektroden, die je mindestens einen durchbrochenen aktiven Mittelteil enthalten, mit einer zwischen den paarweisen Elektroden angeordneten an ihnen anliegender Membran und jeweils zwischen Elektrodenrand und Membranrand liegender Dichtung, wobei der durchbrochene Mittelteil einer Elektrode einen gitterähnlichen Aufbau aufweist, die Gitterstäbe der paarweise zugeordneten Elektroden je um max. 1/2 Stabbreite gegeneinander versetzt sind und die Membran durch die Gitterstäbe glatt gespannt ist. Die Elektrolysezelle ist geeignet für die Elektrolyse eines wässrigen, halogenidhaltigen Elektrolyts (Sole), um eine wässrige Alkalymetallhydroxidlösung (Zellenflüssigkeit) und Halogen und Wasserstoff herzustellen.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.
Eine solche Elektrolysezelle ist bereits bekannt aus der DE-OS 28 09 332. Die dort beschriebene Elektrolysezelle vom Filterpressentyp besteht aus einer Vielzahl vertikal und abwechseln angeordneter flexibler Anoden- und Kathodenplatten mit jeweils zwischen benachbarten Anoden- und Kathodenplatten eingebauter, für Kationen durchlässiger Membran. Anodenplatten, Membran und Kathodenplatten werden mittels nichtleitenden, flexiblen Abstandsplatten in ihrem Abstand zueinander fixiert. Die Dicke der Abstandsplatten, die entweder mit Dichtungsmaterial belegt sind oder selbst aus fast unkompressiblem Dichtungsmaterial bestehen, ist so gewählt, dass die Membran frei zwischen Anodenplatten und Kathodenplatten sich befindet. Da die Anoden- bzw. Kathodenplatten dünn sind, d. h. keine hohe Flächenstabilität besitzen, ist ihr Abstand über die aktive Fläche zur Membran unterschiedlich. Diese Eigenart hat zur Folge, dass der Abstand von Anodenplatte zu Kathodenplatte ebenfalls unterschiedlich ist und sich hieraus eine unterschiedliche Flächenbelastung (Spannungsverlust, elektrochemischer Wirkungsgrad) ergibt. Darüber hinaus ist es schwierig, die Membran von den Rändern der Zelle her vollkommen glatt zu spannen. Zu den eventuell welligen Anoden- bzw. Kathodenplatten kann dann noch additiv eine Membran mit nicht völliger Ebenheit kommen, d. h. im Raum zwischen Anoden- und Kathodenplatten liegen keine eindeutig gleichmässigen Abstände und damit Verhältnisse vor.Such an electrolysis cell is already known from DE-OS 28 09 332. 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. do not have high surface stability, their distance across the active surface to the membrane is different. This peculiarity has the consequence that the distance from the anode plate to the cathode plate is also different and this results in a different surface load (voltage loss, electrochemical efficiency). In addition, it is difficult to stretch the membrane completely smooth from the edges of the cell. In addition to the possibly wavy anode or cathode plates, a membrane with incomplete flatness can then be added. H. In the space between the anode and cathode plates, there are no clearly uniform distances and therefore conditions.
Nach FR-A-2 070 757 sind Elektrolysezellen vom Filterpressentyp bekannt, die aus paarweise angeordneten flächenhaften Elektroden bestehen mit durchbrochenem aktivem Mittelteil. Der Ein- bzw. Ausbau einer Zelleneinheit ist nicht möglich. Zwischen den Elektroden, die jalousieartig sein können, liegt ein Diaphragma, das nicht von den Elektroden gespannt wird. Somit erzielt solch eine Elektrolysezelle nicht geringe Spannungsverluste.According to FR-A-2 070 757, electrolysis cells of the filter press type are known, which 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.
Nach FR-A-2 406 674 ist eine Membran-Elektrolysezelle mit stabförmigen Rundelektroden bekannt. Diese Rundelektroden verlaufen waagerecht und liegen an der Membran an. Zwischen unterer Rundung und Membran verbleibt ein keilförmiger Gassammelraum, der den Stromübergang zur Gegenelektrode stark reduziert, bzw. den Spannungsverlust erhöht. Rundelektroden sind wenig geeignet für die Optimierung einer Membranzelle.According to FR-A-2 406 674, 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.
Der Erfindung liegt die Aufgabe zugrunde, eine monopolare Filterpressenzelle zu schaffen, die verbesserte Eigenschaften aufweist, gegenüber bekannten Filterpressenzellen.The invention has for its object to provide a monopolar filter press cell that has improved properties compared to known filter press cells.
Gegenstand der Erfindung ist eine Membran-Elektrolysezelle vom Filterpressentyp mit paarweise flächenhaften Elektroden, die je mindestens einen durchbrochenen aktiven Mittelteil enthalten, mit zwischen den paarweisen Elektroden angeordneter an ihnen anliegender Membran und jeweils zwischen Elektrodenrand und Membranrand liegender Dichtung, wobei der durchbrochene Mittelteil einer Elektrode einen gitterähnlichen Aufbau aufweist, die Gitterstäbe der paarweise zugeordneten Elektroden um max. eine halbe Stabbreite gegeneinander versetzt sind und die Membran durch die Gitterstäbe glatt gespannt ist, die sich dadurch auszeichnet, dass die Gitterstäbe Lamellen sind in jalousieartiger Anordnung, derart, dass ihr Abstand untereinander kleiner ist als die Projektion ihrer Breite, die Lamellen auf der der Membran zugewandten Seite eine konvexe Wölbung haben und mit dieser dergestalt an der Membran anliegen, dass der Abstand zwischen Anodenplatten und Kathodenplatten im konvexen Bereich konstant ist.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. half a bar width are offset from each other and the membrane is stretched smoothly by the bars, which is characterized in that 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.
Da die Membran selbst als Dichtung wirkt, können in einer Abwandlung der Erfindung auch beide Dichtungen zwischen jeweils einem Elektrodenrand und einem Membranrand zu einer Dichtung zusammengefasst werden. Danach ergibt sich dann eine Dichtung zwischen nur einem Membranrand und einem Elektrodenrand einer paarweisen Elektrode in der gleichen oder geringeren Dicke als die doppelte Höhe des über den Elektrodenrand ragenden Gitterstabanteils. Auf diese Weise lässt sich die Anzahl der Teile der Membran-Elektrolysezelle vom Filterpressentyp mindern und damit gleichzeitig die Anzahl der Dichtflächen und evtl. Leckagestellen.Since the membrane itself acts as a seal, 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.
Um das sich bildende Elektrolyseprodukt, wie z. B. H2-Gas und Chlor, sicher nach oben abzuführen, weisen die Gitterstäbe an. der Seite der konvexen Wölbung eine Vielzahl von Quereinbuchtungen auf.In order to form the electrolysis product, such as. B. H 2 gas and chlorine to safely discharge upwards, instruct the bars. a large number of transverse indentations on the side of the convex curvature.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass der Abstand der Elektrodenplatten zur Membran zu Null wird, und dass damit der Spannungsverlust in der vollständigen Elektrolysenzellenanlage wesentlich gemindert wird. Es ist nicht wie bisher erforderlich, aufwendige Stützkonstruktionen vorzusehen, damit die Membran glatt gespannt wird und im Betrieb auch bleibt.The advantages achieved with the invention consist in particular in the fact that the distance between the electrode plates and the membrane becomes zero, and that the voltage loss in the complete electrolysis cell system is thus substantially reduced. It is not necessary, as previously, to provide complex support structures so that the membrane is tensioned smoothly and remains in operation.
Durch den Wegfall von Bauelementen für die Stützkonstruktion wird einerseits der Gasabzug aus den Zellen verbessert und gleichzeitig die Baulänge jeder einzelnen Elektrolysezelle gemindert.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.
Die konvexe Gestaltung der Gitterstäbe auf der der Membran zugewandten Seite und ihre Versetzung um max. eine halbe Stabbreite hat weiterhin den Vorteil, dass der Abstand der Stäbe zwischen Anodenplatten und Kathodenplatten im konvexen Bereich konstant ist und somit eine hohe wirksame Elektrodenfläche zur Verfügung steht. Die Gitterstäbe der Elektrodenplatten können im übrigen an der der aktiven Seite abgewandten Seite jegliche Form haben, auch können sie auf den Rahmen der Elektrodenplatte aufgeschweisst oder anderweitig befestigt sein. Ausschlaggebend für die endgültige Ausgestaltung sind letztlich Materialwahl, Herstellungskosten und Spannungsverlust in der Elektrolysezelle.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.
Die Elektrodenplatten, Anode sowie Kathode sind aus einem Material hergestellt bzw. beschichtet gemäss dem Stand der Technik. Die verwendeten Dichtungen entsprechen ebenfalls nach Ausbildung und Material dem Stand der Technik. Die Endplatten der Elektrolysezelle und die erforderlichen Spannanker sind in bekannter Weise ausgeführt. Zur Stromzufuhr und Stromableitung dienen sogenannte Fahnen an jeder Elektrodenplatte.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.
Die Erfindungen eignen sich besonders für Membranzellen, die für die Herstellung von Chlor und Natriumhydroxid durch Elektrolyse von wässrigen Natriumchloridlösungen verwendet werden. Die Erfindung wird anhand der beigefügten Zeichnungen näher erläutert. In den Zeichnungen zeigen:
- Figur 1: Schnitt einer Anodenplatte-Membran-Kathodenplatten-Einheit im Betriebszustand,
- Figur 2: Schnitt einer Anodenplatte-Membran-Kathodenplatten-Einheit im Betriebszustand mit nur einer Dichtung zum Festklemmen der Membran,
- Figur 3: perspektivische auseinandergezogene Darstellung eines Teils einer erfindungsgemässen Membranzelle.
- FIG. 1: section of an anode plate-membrane-cathode plate unit in the operating state,
- FIG. 2: section of an anode plate-membrane-cathode plate unit in the operating state with only one seal for clamping the membrane,
- Figure 3: perspective exploded view of part of a membrane cell according to the invention.
Die in Figur 1 und 2 dargestellte Einheit besteht aus der Anodenplatte 1 und der Kathodenplatte 2 in vollkommen gleicher konstruktiver Ausgestaltung, aus der Membran 3 zwischen den Platten und aus den Dichtungen 4 zum Festklemmen der Membran und den Dichtungen 5 mit Einlage 6 für Formstabilität und mit den Öffnungen 7 für verschiedene Reaktionsmedien. Das jeweils zwischen zwei Elektrodenpaketen befindliche Reaktionsmedium im Gemisch mit Produktmedien wie Wasserstoff und Chlorgas erfährt keine Beeinträchtigung der optimalen Verteilungskonzentration durch irgendwelche Stützkonstruktionselemente.The unit shown in Figures 1 and 2 consists of the
Gemäss der perspektivischen Darstellung nach Figur 3 ist der Aufbau der Elektrolysezelle zu erkennen. Aus den jalousieartig gestellten Gitterstäben 8, die als Lamellen gestaltet sind, entweichen die gasförmigen Produktmedien störungsfrei nach oben. Die Membran 3, aus handelsüblichem Material hergestellt, wird in bekannter Weise mit der Dichtung 4 befestigt, so dass sie nach Einbau der zweiten Elektrodenplatte erfindungsgemäss zwischen den Elektrodenplatten gespannt ist.According to the perspective illustration according to FIG. 3, the structure of the electrolysis cell can be seen. The gaseous product media escape upwards from the louvre-
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3219704 | 1982-05-26 | ||
| DE19823219704 DE3219704A1 (en) | 1982-05-26 | 1982-05-26 | MEMBRANE ELECTROLYSIS CELL |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0095039A2 EP0095039A2 (en) | 1983-11-30 |
| EP0095039A3 EP0095039A3 (en) | 1985-05-15 |
| EP0095039B1 true EP0095039B1 (en) | 1988-12-28 |
Family
ID=6164496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83103915A Expired EP0095039B1 (en) | 1982-05-26 | 1983-04-21 | Membrane-electrolysis cell |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4469577A (en) |
| EP (1) | EP0095039B1 (en) |
| JP (1) | JPH0657874B2 (en) |
| CA (1) | CA1204408A (en) |
| DE (2) | DE3219704A1 (en) |
| IN (1) | IN159130B (en) |
Cited By (2)
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|---|---|---|---|---|
| DE4415146A1 (en) * | 1994-04-29 | 1995-11-02 | Uhde Gmbh | Special shaped electrodes avoiding gas build up in electrolytic processes |
| DE102005006555A1 (en) * | 2005-02-11 | 2006-08-17 | Uhdenora S.P.A. | Electrode for electrolysis cells |
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| GB8303586D0 (en) * | 1983-02-09 | 1983-03-16 | Ici Plc | Electrolytic cell |
| SE8400459L (en) * | 1984-01-30 | 1985-07-31 | Kema Nord Ab | ELECTROLY FOR ELECTROLYSOR |
| US4648955A (en) * | 1985-04-19 | 1987-03-10 | Ivac Corporation | Planar multi-junction electrochemical cell |
| SE465966B (en) * | 1989-07-14 | 1991-11-25 | Permascand Ab | ELECTRIC FOR ELECTRIC LIGHTING, PROCEDURE FOR ITS MANUFACTURING AND APPLICATION OF THE ELECTRODE |
| DE4224492C1 (en) * | 1992-07-24 | 1993-12-09 | Uhde Gmbh | Apparatus for the electrolytic treatment of liquids with an anode and a cathode chamber and their use |
| US5334300A (en) * | 1992-12-08 | 1994-08-02 | Osmotek, Inc. | Turbulent flow electrodialysis cell |
| DE4306889C1 (en) * | 1993-03-05 | 1994-08-18 | Heraeus Elektrochemie | Electrode arrangement for gas-forming electrolytic processes in membrane cells and their use |
| 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 (en) * | 1998-04-11 | 1999-10-14 | Krupp Uhde Gmbh | Electrolysis apparatus for the production of halogen gases |
| ITMI20031269A1 (en) * | 2003-06-24 | 2004-12-25 | De Nora Elettrodi Spa | NEW EXPANDABLE ANODE FOR DIAPHRAGM CELLS. |
| RU2427669C2 (en) * | 2006-09-29 | 2011-08-27 | Уденора С.П.А. | Electrolytic cell |
| DE102006046807A1 (en) * | 2006-09-29 | 2008-04-03 | Uhdenora S.P.A. | Electrolysis cell used for chlor-alkali electrolysis comprises one electrode curved between two bars in the direction of the opposite-lying electrode |
| DE102006046808A1 (en) * | 2006-09-29 | 2008-04-03 | Uhdenora S.P.A. | Electrolysis cell used for chlor-alkali electrolysis comprises one electrode curved between two bars in the direction of the opposite-lying electrode |
| DE102006055709B3 (en) * | 2006-11-23 | 2008-02-07 | Uhdenora S.P.A. | Measuring cell for electrodes and electrode coating has two chambers with chambers of opposite polarity either side of a membrane |
| DE102010021833A1 (en) | 2010-05-28 | 2011-12-01 | Uhde Gmbh | Electrode for electrolysis cell |
| DE102012017306A1 (en) | 2012-09-03 | 2014-03-06 | Thyssenkrupp Uhde Gmbh | Electrochemical cell of flow type |
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| FR2280432A1 (en) * | 1974-07-29 | 1976-02-27 | Rhone Poulenc Ind | ELECTROLYSIS CELL WITH BIPOLAR ELEMENTS FOR ELECTROLYSIS IN PARTICULAR ALKALINE SALT SOLUTIONS |
| NO752886L (en) * | 1974-08-26 | 1976-02-27 | Hodogaya Chemical Co Ltd | |
| FR2343825A1 (en) * | 1976-03-08 | 1977-10-07 | Solvay | ELECTRODE FOR THE PRODUCTION OF GAS IN A MEMBRANE CELL |
| US4013535A (en) * | 1976-06-07 | 1977-03-22 | The B. F. Goodrich Company | Electrolyte separator tensioning device |
| US4013537A (en) * | 1976-06-07 | 1977-03-22 | The B. F. Goodrich Company | Electrolytic cell design |
| GB1581534A (en) * | 1976-09-20 | 1980-12-17 | Ici Ltd | Electrolytic cell |
| FR2381835A1 (en) * | 1977-02-28 | 1978-09-22 | Solvay | Electrolytic cell with perforated vertical electrodes for gas passage - the free hole area increasing uniformly from bottom to top |
| 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 (en) * | 1978-07-27 | 1986-02-24 | Elche Ltd | MONOPOLAR ELECTROLYSIS CELL |
| 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 (en) * | 1979-04-02 | 1983-05-28 | 東亞合成株式会社 | Cathode for electrolysis |
| DE2929043A1 (en) * | 1979-07-18 | 1981-02-12 | Reis August K | DISINFECTING DEVICE |
| 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 |
-
1982
- 1982-05-26 DE DE19823219704 patent/DE3219704A1/en not_active Ceased
-
1983
- 1983-04-21 EP EP83103915A patent/EP0095039B1/en not_active Expired
- 1983-04-21 DE DE8383103915T patent/DE3378769D1/en not_active Expired
- 1983-05-25 IN IN662/CAL/83A patent/IN159130B/en unknown
- 1983-05-25 US US06/498,009 patent/US4469577A/en not_active Expired - Lifetime
- 1983-05-25 CA CA000428814A patent/CA1204408A/en not_active Expired
- 1983-05-26 JP JP58091627A patent/JPH0657874B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH335049A (en) * | 1955-07-07 | 1958-12-31 | Lonza Ag | Filter press type electrolyzer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4415146A1 (en) * | 1994-04-29 | 1995-11-02 | Uhde Gmbh | Special shaped electrodes avoiding gas build up in electrolytic processes |
| DE102005006555A1 (en) * | 2005-02-11 | 2006-08-17 | Uhdenora S.P.A. | Electrode for electrolysis cells |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3378769D1 (en) | 1989-02-02 |
| CA1204408A (en) | 1986-05-13 |
| JPH0657874B2 (en) | 1994-08-03 |
| DE3219704A1 (en) | 1983-12-01 |
| EP0095039A3 (en) | 1985-05-15 |
| EP0095039A2 (en) | 1983-11-30 |
| IN159130B (en) | 1987-03-28 |
| JPS58213886A (en) | 1983-12-12 |
| US4469577A (en) | 1984-09-04 |
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