EP1477584A2 - Joint d'étanchéité pour cellule d'électrolyse - Google Patents

Joint d'étanchéité pour cellule d'électrolyse Download PDF

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Publication number
EP1477584A2
EP1477584A2 EP04010573A EP04010573A EP1477584A2 EP 1477584 A2 EP1477584 A2 EP 1477584A2 EP 04010573 A EP04010573 A EP 04010573A EP 04010573 A EP04010573 A EP 04010573A EP 1477584 A2 EP1477584 A2 EP 1477584A2
Authority
EP
European Patent Office
Prior art keywords
seal
cord
sealing
film
electrolytic cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04010573A
Other languages
German (de)
English (en)
Other versions
EP1477584A3 (fr
Inventor
Michael Werner
Josef Gantner
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.)
WL Gore and Associates GmbH
WL Gore and Associates Inc
Original Assignee
WL Gore and Associates GmbH
WL Gore and Associates Inc
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 WL Gore and Associates GmbH, WL Gore and Associates Inc filed Critical WL Gore and Associates GmbH
Publication of EP1477584A2 publication Critical patent/EP1477584A2/fr
Publication of EP1477584A3 publication Critical patent/EP1477584A3/fr
Withdrawn legal-status Critical Current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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • 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

Definitions

  • the invention relates to a seal for an electrolytic cell, a method for their production and an electrolytic cell arrangement with such Poetry.
  • the electrolytic cells are used, for example, to produce chromic acid, molecular hydrogen, molecular oxygen, chlorine and alkali metal hydroxides used by electrolysis, with increasing electrolysis cells membrane type are used.
  • EP 1 029 118 B1 W.L. Gore & Associates
  • electrolytic cell seal in a simple manner can be used between two electrolytic cell halves, since they are designed as one piece Seal can be handled independently.
  • the electrolytic cell halves for example 2.5 mx 1.3 m in the case of electrolysis cells for producing chlorine from a salt solution with the formation of sodium hydroxide solution and due to the resulting Sealing length of over 7.5 m, the ease of handling is an essential Aspect for electrolytic cell seals.
  • a concrete electrolytic cell seal according to the teaching of EP 1 029 118 B1 is explained below with reference to FIG. 2. Only a relevant sealing section of the cell is shown.
  • the electrolytic cell is usually used hanging, as shown. It comprises two housing halves 1 and 2 with cathode 3 or anode 4 accommodated therein.
  • the cathode compartment contains, for example, sodium hydroxide solution (NaOH in water) and gaseous hydrogen H 2 as the electrolysis product
  • the anode compartment contains a salt solution (NaCl in water) and gaseous chlorine Cl as the electrolysis product 2nd
  • Anode space and cathode space are separated from each other by an ion exchange membrane 5, through which the ion exchange of Na + ions takes place from the anode to the cathode space.
  • the two housing halves 1 and 2 are connected to one another via a flange bore 7 by means of a screw connection, not shown, with the interposition of a seal 6.
  • the seal 6 have several functions.
  • the seal 6 prevents the sodium hydroxide solution and the salt solution from escaping as well as the uncontrolled escape of H 2 or Cl 2 from the electrolysis cell.
  • the seal is not only liquid-tight but also gas-tight. Gas tightness means a leak rate of less than 0.01 mg / ms at a surface pressure of 10 MPa.
  • the seal 6 electrically isolates the two housing halves 1 and 2 from one another. After all, there is a voltage of approx. 3 V at 4.5 kA when generating chlorine.
  • the seal 6 also serves to fix the sensitive ion exchange membrane 5, in that the latter is clamped between the seal 6 and a housing half, for example the cathode housing 2.
  • the seal 6 in turn consists of a double-folded ePTFE film, in which a sealing cord 9 made of rolled ePTFE film and a flat, lattice-shaped spacer structure 10 are accommodated.
  • the spacer structure 10 is fixed on one side with an adhesive 11 with the double-folded ePTFE film 8.
  • the sealing cord 9 has a predominantly sealing function and the spacer structure 10 has a predominantly spacing function. Accordingly, the spacer structure 10 cannot be compressed, or at least can only be compressed slightly, while the sealing cord 9 can be deformed and compressed by compression.
  • FIG. 2 shows the seal in the pre-assembly state, ie in the uncompressed state.
  • the electrolytic cell seal known from EP 1 029 118 B1 is shown in room for improvement in various respects.
  • the known one Sealing both material and manufacturing-intensive. Both strikes. reflected in the manufacturing costs.
  • the production is done by hand and can with the aforementioned dimensions taking into account the following discussed measures up to 1.5 hours per seal to take.
  • a stable frame is often made of electricity instead insulating, sintered PTFE with the appropriate dimensions of z. B. 2.5 m x 1.3 m and a circumferential width of, for example, 54 mm for certain electrolysis cells used for chlorine production.
  • Such frames are difficult to transport because they must not be kinked.
  • the two electrolytic cell housing halves, between which the frame then are placed with a narrow, thin sealing tape made of monodirectionally stretched PTFE, the two sealing tapes May only partially overlap over the entire sealing length. there assembly errors easily occur. Repairs are expensive, so the seals from the outset should only be assembled by specially trained personnel.
  • the adhesive residues of the sealing tape on the housing halves are also problematic, if the seals are routinely used when replacing the ion exchange membrane be renewed after about four years. While with this Process of so-called "remembraning" of the seal to be disposed of can, the electrolytic cell housing halves are reused. The Cleaning the adhesive from the housing halves is complex.
  • the object of the present invention is therefore in particular that to improve the seal known from EP 1 029 118 B1.
  • the flat, lattice-shaped spacer structure the known seal by a cord-shaped spacer component replaced, which in contrast to the known seal a multiple of their maximum thickness or their maximum diameter of the sealing cord is removed.
  • Replacing the spacer structure with a string offers several Benefits. On the one hand, this reduces the amount of material processed, which means Procurement and storage costs can be reduced. On the other hand, one Cord much easier to process, especially with less mechanical Effort as a large spacer structure. By spacing the spacer cord from the sealing cord is still reached, that when the seal is clamped, the two halves of the housing tilt can be reduced to an insignificant degree.
  • the sealing cord can be inside the seal spacing function to the same extent as the spacer cord. Because the seal is typically for use with a certain compression pressure is provided, the two cords should this compression pressure have approximately the same compressed thickness. Ideally, this can be achieved by having both cords from the same Material exist or at least the same or approximately the same compressibility have, so that they are in the uncompressed pre-assembly state the foils, between which they are arranged, at approximately the same distance hold. In particular, the two can be arranged between the foils Lines also in the co-extrusion process with one connecting the two lines Bridge are made. However, since the sealing cord in addition to the spacing function in particular sealing function and the Sealing cord consists of comparatively high quality and expensive material, becomes a completely different, essential for the spacer cord cheaper material selected than for the sealing cord.
  • the cord replacing the spacer structure can be also act as a wire.
  • the cross section of the cord is from of minor importance and can also be oval, for example. He should but not be flat over a large area, just as possible as with the sealing cord to achieve a narrow sealing line, thus a high surface pressure with low Screw forces can be achieved.
  • the screw holes preferably lie over which the two housing halves be clamped together between this spacer cord and the Sealing cord. This allows an even load distribution on both cords can be achieved. The screw holes can easily be removed from the seal to be punched out.
  • the two foils are between which the cords are picked up by a heat stable up to 100 ° C Adhesive bonded together. Surprisingly, this can make hiking the sealing cord in the sealing gap between the foils can be avoided. It it is believed that this wandering observed in the prior art Sealing cord on the lack of heat resistance of the used there Glue is due.
  • the working temperatures are from Electrolysis cells for chlorine production at up to 90 ° C. Through a warm stable The cords are now glued between the foils fixed securely. Sewing the cords to prevent theirs Hiking is not necessary. This also means there are no seam holes, through which corrosion from the cathode compartment to the anode compartment or vice versa.
  • the adhesive can preferably be activated thermally.
  • it can be a thermally activated two-component glue or a thermoplastic glue, in particular Based on a fluoropolymer. Fluoropolymers are because of their chemical resistance particularly suitable. It is sufficient if one of the slides is included this adhesive is pre-coated.
  • a coating from the thermoplastic Plastic ethylene-fluoroethylene propylene (EFEP) is particularly preferred.
  • EFEP is a copolymer of ethylene, tetrafluoroethylene and hexafluoropropylene.
  • the coating can be made of PVDF, ETFE, ECTFE, PFA or FEP exist.
  • the coating comes in addition to its function as a connection or Welding agents also have the importance of being a diffusion barrier.
  • the diffusion corrosive substances through the ion exchange membrane and further through the two foils of the seal from the anode compartment to the cathode compartment (or vice versa) is made even more difficult.
  • the seal is at its the Side facing the electrolysis cell is equipped with a spacer material, which ensures that the seal, when assembled, the sealing gap fills out as completely as possible.
  • the thickness of the spacer material corresponds to this approximately the thickness of the seal if it is a predetermined in the assembled state Compression pressure is exposed, minus the total thickness of the two (uncompressed) slides.
  • the spacer material can be made from a very soft chemically resistant material, especially one Fluoropolymer so that even in the event that it is in the compressed state the seal is also compressed, none or at least essentially absorbs no compression forces.
  • the purpose of the spacer material is to seal the Area between the electrolytic cell spaces and the inner sealing cord close contact with the sealing flanges of the electrolytic cell halves; to prevent dead spaces in which electrolysis products such as lye.
  • This measure too has proven to be important for corrosion prevention. It it is assumed that such dead spaces exist in the known seal formed. In the absence of a constant flushing of such dead spaces, it happened probably to a moisture removal of the ion exchange membrane and thereby on their embrittlement in the area of the sealing gap.
  • the spacer material can be between the two foils or on one side on one of the two foils. It can in turn be a film material and in particular be identical to the material of the two foils, e.g. from ePTFE.
  • the seal is advantageously flat on one side and on the other side through the cords between the foils and the spacing material profiled.
  • the ion exchange membrane is then between the flat Side of the seal and a sealing flange of an electrolytic cell half trapped.
  • This arrangement is particularly gentle on the mechanical sensitive ion exchange membrane when the electrolytic cell halves are used Formation of an electrolytic cell can be clamped together.
  • the seal is not necessarily flat on one side, but can also be profiled on both sides by the cords between the foils be, either both cords for profiling both sealing surfaces or each cord only for profiling one sealing surface can contribute.
  • the seal is thus in one piece and therefore easy to handle and assemble.
  • the seal is fixed between the electrolytic cell halves in simple way via screw holes.
  • the seal is flexible and therefore easy to transport by folding. You must during assembly not fixed to the sealing flange of the electrolytic cell halves with an adhesive so that cleaning of adhesive residues during remembraning is not necessary. Especially through the use of heat stable Glue eliminates the risk of leaking and later cleaning Avoid glue.
  • the adhesive also acts as a diffusion barrier, thus preventing it corrosion due to substances passing through the membrane.
  • the Corrosion is additionally reduced by using a spacer material Closed dead spaces and thus avoiding embrittlement of the membrane becomes.
  • FIG. 1 shows an electrolytic cell arrangement using the example of chlorine production from sodium chloride (NaCl).
  • the electrolytic cell arrangement essentially consists of two housing halves 1, 2, between which an ion exchange membrane 5 is stretched. This creates a first space between the membrane 5 and the first housing half 1, in which a cathode 3 is arranged near the membrane 5, and a second space between the membrane 5 and the second housing half 2, in which an anode 4 is located near the membrane 5 is arranged.
  • Water (H 2 O) is flushed through the cathode compartment.
  • There is a salt solution in the anode compartment which is kept at a constant concentration level by adding NaCl.
  • Na + ions diffuse through the ion exchange membrane 5 from the anode space into the cathode space.
  • molecular gaseous chlorine Cl 2 is formed in the anode compartment.
  • the Na + ions diffused into the cathode space lead to the formation of NaOH in water (sodium hydroxide solution) and to molecular, gaseous hydrogen H 2 .
  • the cathode compartment is constantly rinsed with fresh water H 2 O.
  • the electrolytic cell formed by the housings 1 and 2 is through a seal 6 liquid-tight and gas-tight sealed from the outside to the environment.
  • FIG. 3 shows a seal 6 in the pre-assembled state according to a first embodiment between the flanges 1a, 2a of the cathode housing half 1 and the anode housing half 2, i.e. in an arrangement before the two housing halves 1, 2 are clamped together.
  • the housing half 1 of the cathode 3 consists of a nickel sheet and the housing half 2 of the anode 4 consists made of a coated titanium sheet.
  • the cathode housing half 1 and the seal 6 becomes the ion exchange membrane 5 clamped.
  • the seal 6 is on the ion exchange membrane 5 facing side.
  • the seal 6 extends to the inner edge of the housing flanges 1a, 2a to make contact with the anode housing half 2 with the ion exchange membrane 5 and above a short circuit to exclude with the cathode housing 1.
  • the seal consists in essentially of two spaced cords, the inner one Sealing cord 9 and the outer spacer cord 10 with a Diameter of, for example, 1.9 mm between two foils.
  • the seal 6 has therefore through holes 13 arranged congruently with the bores 7 between the two cords 9, 10.
  • the distance between the housing flanges 1a and 2a is in the pre-assembly state shown in FIG. 3, for example at 2.6 mm. This corresponds to the thickness of the seal in the uncompressed Status. This distance is achieved by tightening the two halves of the housing 1 and 2 reduced to, for example, 1.1 mm (not shown). Consequently the thickness of the seal is reduced both in the area closer to the electrolytic cell space lying sealing cord 9 as well as in the area of the outside Spacer cord 10 accordingly by about 1.5 mm.
  • the two thin foils, between which the two cords 9, 10 are received contribute significantly to the overall compression of the seal of approx. 33%, since it compresses from 0.35 mm to 0.1 mm become.
  • the seal 6 is equipped with a spacer material 14.
  • the spacer material 14 preferably covers this area over the entire surface.
  • the thickness of the spacer material 14 is selected such that the ion exchange membrane 5, when the two housing halves 1 and 2 are in the tensioned state, preferably lies just against the housing flange 1a or is optionally pressed on with low pressure. This means that the distance between the spacer material 14 and the housing flange 2a is, in deviation from the pre-assembly state shown in FIG. 3, preferably approximately 1.5 mm. This corresponds to the path by which the two housing halves are displaced relative to one another when braced.
  • the same material is preferably used as the spacer material 14 as for the foils, that is to say a foil material with a thickness of 0.35 mm.
  • the spacer material 14 can, if necessary, also be compressed if it is namely thicker than 0.4 mm, as in the variant shown in FIG. 3.
  • the spacer material 14 should in this case consist of a material that is substantially softer than the sealing cord 9.
  • the seal 6 is again shown separately.
  • the seal 6 is flat on one side and has openings 13 through which tensioning screws can be passed through it.
  • One of the two Films 8a, 8b are provided with a thermoplastic fluoropolymer layer 11, via which the two layers 8a, 8b together in the thermal welding process are firmly connected.
  • the width of the seal 6 is e.g. 54 mm and is preferred adapted to the housing flange width 1a, 2a.
  • the spacer material 14 rests the profiled outside of the seal 6 between the sealing cord 9 and the closest outer edge of the seal 6.
  • the spacer material 14 can from a thermoplastic that can be welded to the adjacent film 8b Material exist or be coated with such a material to a Thermal welding connection between the spacer material 14 and the film 8b to be able to produce. A connection by means of a is also conceivable other thermally stable adhesive.
  • FIG. 5 shows an alternative embodiment in which the spacer material 14 lies between the two foils 8a, 8b. This can be cheaper from a procedural point of view his. If the sealing cord 9 only in a separate operation between the two foils 8a, 8b that are already in other areas of the seal can be brought pre-welded, then the spacer material 14 in the same operation together with the sealing cord 9 between bring the two foils 8a, 8b.
  • the seal in the area of the spacer material has only one film layer, film 8a or film 8b.
  • the foils 8a, 8b of the seal 6 are two separate ones Slides shown. You can also use a single, double folded film can be formed. According to a particular embodiment of the Invention, the two films 8a, 8b can also be used in the co-extrusion process a single film with cords 9 and 10 enclosed between them become. The cords 9 and 10 are then not between two foils, but between two film surfaces. The spacer material 14 can Cross-sectional profile of the extruded film must already be taken into account. Finally it is even conceivable that instead of the two integrated in the extrudate Lines 9 and 10 the extrudate consists of a solid material, the Cords 9 and 10 only by appropriate thickening of the extrudate cross section are realized as cord-shaped sealing components.
  • the sealing cord 9 can consist of a wide variety of materials, for example also made of wire-like material such as a PVDF wire or a Welding wire.
  • the sealing cord 9 is preferably essentially one cord-like structure made of at least one spiral-rolled expanded polytetrafluoroethylene (ePTFE) film-like material.
  • ePTFE expanded polytetrafluoroethylene
  • Such a seal is, for example, in DE 197 23 907 A1 by the applicant described. As explained therein, this seal can be placed over their Cord cross-section have a density gradient, which from the outside the second sealing component starting towards them Cross-sectional center increases.
  • a self-contained ring seal a cylindrical film rolled on itself can be produced. at Such a self-contained ring seal means fewer leakage problems because it has no inhomogeneous sealing joints.
  • the ePT-FE material the ring seal 9 can also have a filler, such as glass, ceramic and / or polymer resin.
  • the material for the spacer cord 10 which - since it has no sealing function possesses in the narrower sense - does not have to be self-contained comparatively uncritical. It is particularly important that the sealing cord 9 and the spacer cord 10 in the operating state, that is, after any Set within the initial uptime, roughly the same compressed Own thickness. Otherwise, the housing flanges 1a, 2a could Bracing a wedge-shaped arrangement to each other and thereby cause the cords to wander. In extreme cases, this can lead to a leak lead the electrolytic cell arrangement. Therefore, it is preferred that the Sealing cord 9 and the spacer cord 10 in the unloaded state approximately have the same diameter and also preferably in have approximately the same modulus of elasticity, even if the two cords 9, 10 not necessarily consist of the same material for cost reasons need.
  • the two films 8a, 8b are preferably fluoropolymer films, especially films made of polytetrafluoroethylene, such as multidirectionally expanded polytetrafluoroethylene (ePTFE), at least one of the foils on one side with ethylene-fluoroethylene propylene (EFEP) or one other fluoropolymer is coated as a welding agent.
  • ePTFE multidirectionally expanded polytetrafluoroethylene
  • EFEP ethylene-fluoroethylene propylene
  • a frame-like arrangement for Provided, the two films 8a, 8b and the one in between Cord 10 with spacing function includes.
  • This frame-shaped in the case of large series, arranged material can be processed in a single operation, for example in an autoclave. It should be noted, that an inner area of the two foils is not yet together is welded so that in a subsequent step the sealing cord 9 and possibly also the spacer material 14 between the two Layers 8a, 8b can be inserted, whereupon the cracks of the two foils 8a, 8b takes place in this area. It is also conceivable to seal all sealing components together in one operation weld.
  • Two films 8a, 8b made of multidirectionally stretched polytetrafluoroethylene are made of supply rolls with a supply length of, for example Deducted 180 m and through a connecting station 15 in the form of a double belt press with heating elements arranged on both sides of the transport route 16 out.
  • the spacer cord 10 is between the two foils 8a, 8b fed.
  • thermoplastic coating at least one of the two foils 8a, 8b with ethylene-fluoroethylene propylene (EFEP) and the supply of heat through the heating elements 16, the two foils 8a, 8b weld together Area of the double belt press 15 including the spacer cord 10 with each other.
  • EFEP ethylene-fluoroethylene propylene
  • Figure 7a, 7b show the resulting product once in supervision and once in Cross-section.
  • the foils 8a, 8b are in the connection station respectively Double belt press 15 not over the entire width but only over part of the width welded together by the EFEP coating 11.
  • An EFEP coating is also in the rest of the area at least one of the two foils 8a, 8b is present. However, this area is next to of the connecting station 15.
  • the two Edges of the superimposed foils 8a, 8b are trimmed so that each two edges lie exactly on top of each other.
  • Figure 8 now shows the frame-like arrangement consisting of four sections of the foil webs welded together.
  • the film 8b lying at the top is folded up so that between the foils 8a, 8b are inserted a self-contained ring seal 9 can.
  • the folded up sections of the foils 8b are then opened the ring seal 9 folded down.
  • the films 8a, 8b are each arranged by a corner connecting film 18 underlaid to firmly adjoin adjacent film sections connect.
  • a corresponding corner connection film 18 is on each corner of the frame-like arrangement also placed from above (not shown).
  • the corner areas are then first, for example, by pulse welding welded together.
  • a profile for the sealing cord 9 is to be provided so that the resulting seal is flat on one side.
  • the spacer material 14, not shown in Figure 8, can either before Folding down the film 8b between the films 8a and 8b are inserted or then placed on the film 8b.
  • supplementary pieces the spacer cord 10 are placed on the film 8b so the spacer cord 10 forms a closed ring.
  • the spacer material 14 and the supplementary pieces of the spacer cord 10 are then integrated into the seal during the welding step described above. Finally there are holes (not shown) for the implementation punched into the seal by screws.

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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)
EP04010573A 2003-05-14 2004-05-04 Joint d'étanchéité pour cellule d'électrolyse Withdrawn EP1477584A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10321681A DE10321681B4 (de) 2003-05-14 2003-05-14 Dichtung für Elektrolysezellenanordnung sowie Verwendung und Verfahren zur Herstellung der Dichtung
DE10321681 2003-05-14

Publications (2)

Publication Number Publication Date
EP1477584A2 true EP1477584A2 (fr) 2004-11-17
EP1477584A3 EP1477584A3 (fr) 2006-07-26

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EP04010573A Withdrawn EP1477584A3 (fr) 2003-05-14 2004-05-04 Joint d'étanchéité pour cellule d'électrolyse

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DE (1) DE10321681B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023118278A1 (fr) * 2021-12-23 2023-06-29 thyssenkrupp nucera AG & Co. KGaA Cellule d'électrolyse étanche

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011100768A1 (de) 2011-05-06 2012-12-06 Bayer Material Science Ag Elektrochemische Zelle mit Rahmendichtung zur alternativen Abdichtung gegenRandläufigkeiten des Elektrolyten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531133A (en) * 1968-11-08 1970-09-29 Res Eng Co Seal
US4026565A (en) * 1975-03-10 1977-05-31 Parker-Hannifin Corporation Sealed static joint and gasket therefor
FR2659123A1 (fr) * 1990-03-02 1991-09-06 Rhone Poulenc Chimie Joint d'etancheite.
DE19750313A1 (de) * 1997-11-13 1999-05-27 Gore W L & Ass Gmbh Elektrolysezellenanordnung und Verfahren zum Abdichten einer Elektrolysezelle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308288A7 (fr) * 1975-04-16 1976-11-12 Commissariat Energie Atomique Joint composite et son procede de fabrication
DE19750314A1 (de) * 1997-11-13 1999-05-27 Gore W L & Ass Gmbh Elektrolysezellenanordnung und Verfahren zum Abdichten einer Elektrolysezelle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531133A (en) * 1968-11-08 1970-09-29 Res Eng Co Seal
US4026565A (en) * 1975-03-10 1977-05-31 Parker-Hannifin Corporation Sealed static joint and gasket therefor
FR2659123A1 (fr) * 1990-03-02 1991-09-06 Rhone Poulenc Chimie Joint d'etancheite.
DE19750313A1 (de) * 1997-11-13 1999-05-27 Gore W L & Ass Gmbh Elektrolysezellenanordnung und Verfahren zum Abdichten einer Elektrolysezelle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023118278A1 (fr) * 2021-12-23 2023-06-29 thyssenkrupp nucera AG & Co. KGaA Cellule d'électrolyse étanche

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Publication number Publication date
DE10321681B4 (de) 2005-05-25
DE10321681A1 (de) 2004-12-09
EP1477584A3 (fr) 2006-07-26

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