EP3099844A1 - Electrolysis tank comprising an anode assembly contained in a containment enclosure - Google Patents
Electrolysis tank comprising an anode assembly contained in a containment enclosureInfo
- Publication number
- EP3099844A1 EP3099844A1 EP15740994.7A EP15740994A EP3099844A1 EP 3099844 A1 EP3099844 A1 EP 3099844A1 EP 15740994 A EP15740994 A EP 15740994A EP 3099844 A1 EP3099844 A1 EP 3099844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrolytic cell
- anode
- electrical conductor
- electrolysis
- enclosure
- 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.)
- Granted
Links
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 97
- 239000004020 conductor Substances 0.000 claims abstract description 178
- 239000007789 gas Substances 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 66
- 238000006073 displacement reaction Methods 0.000 claims description 31
- 238000013519 translation Methods 0.000 claims description 17
- 230000000712 assembly Effects 0.000 claims description 16
- 238000000429 assembly Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000000605 extraction Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 abstract 1
- 230000008859 change Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 238000009626 Hall-Héroult process Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/10—External supporting frames or structures
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/16—Electric current supply devices, e.g. bus bars
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/22—Collecting emitted gases
Definitions
- the present invention relates to an electrolysis cell, intended for the production of aluminum by electrolysis, and an aluminum plant comprising this electrolytic cell.
- an electrolytic cell conventionally comprising a steel box inside which is arranged a coating of refractory materials, a cathode of carbon material, crossed by cathode conductors for collecting the electrolysis current to the cathode to lead cathodic outputs through the bottom or sides of the box, routing conductors extending substantially horizontally to the next vessel from the cathode outlets, an electrolytic bath in which is dissolved alumina, at least one anode assembly comprising a substantially vertical anode rod and at least one anode block suspended from the anode rod and immersed in this electrolytic bath, an anode frame to which the anode assembly is suspended via the anode rod substantially vertical and mobile with the anode frame with respect to the box and the cathode, and mo conductors flexible electrolysis current, extending from bottom to top, connected to the routing conductors of the preceding electrolytic
- gases are produced, in particular carbon dioxide which is evolved at the anode and hydrogen fluoride (HF) escaping from the electrolytic bath.
- HF hydrogen fluoride
- a cowling traditionally covers the opening defined by the box. These gases can then be regularly collected, for example with a view to their treatment and their subsequent recovery.
- Dynamic sealing means are generally provided to prevent the gases from leaking through the junction provided between the cowling and the anode rods.
- dynamic sealing means is meant sealing means which ensure the confinement of the gases during the displacement of the anode rods.
- Such dynamic sealing means is in particular known from WO2004 / 035872 in the name of Aluminum Pechiney.
- damaged sealing means can affect the tightness of the cowling, so that the gases generated during the electrolysis reaction can not be collected in full, or the gas suction flow must be oversized.
- the electrolysis vessels of the state of the art comprise anode assemblies that interact with the cowling, in particular at the time of an anode change, so that the leaktightness of the cowling to the gases generated during Electrolysis reaction may be affected.
- the present invention aims to overcome all or part of these disadvantages by providing an electrolytic cell offering improved sealing gas generated during the electrolysis reaction, and an aluminum plant comprising the electrolytic cell.
- the subject of the present invention is an electrolysis cell, intended for the production of aluminum by electrolysis, comprising a box comprising an inner lining delimiting an opening through which is intended to be moved to least an anode block, said anode block being suspended from an anode support forming with said anode block an anode assembly movable relative to the box, and a containment enclosure delimiting a closed volume above said opening for the confinement of the gases generated at the during the production of aluminum, the anodic support being connected to an electrical conductor for supplying an electrolysis current to at least one anode block;
- the anode assembly is integrally contained in the confinement enclosure, and in that the electrical connection between the movable electrical conductor and the anode carrier is made inside the confinement enclosure.
- the maintenance of the integrity of the elements forming the confinement enclosure and therefore the confinement of the gases generated during the electrolysis reaction are independent of any manipulation or displacement of the anode assembly, so that the vessel of Electrolysis according to the invention offers improved sealing.
- the anode assembly is at a distance from the confinement enclosure and does not interact with it, which differs from the electrolysis cells of the state of the art.
- the electrical conductor extends in the confinement chamber outside a volume defined by the top of the anode block during the displacement of the anode block through the opening.
- the mobile electrical conductor does not extend above the anode blocks, in a volume obtained by vertical translation of a projected surface of the anode blocks in a horizontal plane.
- the electrical connection between the mobile electrical conductor and the anode carrier is necessarily performed on one side of the electrolytic cell, but not above the anode blocks, nor advantageously above the opening defined by the box and the lining.
- the mobile electrical conductor does not interfere with vertical extraction of the anode blocks.
- the electrolytic cell is intended to be arranged transversely with respect to the length of a line of electrolysis cells to which it belongs.
- the containment enclosure comprises an upper lid portion, said upper portion being removable to allow extraction of the anode assembly.
- a removable upper portion makes it possible to carry out maintenance operations on the tank in operation, in particular an anode assembly change, without having to stop the tank or to disassemble equipment necessary for the operation of the tank, such as gas suction devices. or feeding devices of raw material.
- the electrolytic cell according to the invention offers the possibility of changing anodes from the top of the tank, without any equipment in the tank obstructing the vertical stroke of the anode change, which makes it possible to achieve significant structural gains.
- the electrical conductor is mobile and the confinement enclosure comprises a fixed portion that has a window across which the mobile electrical conductor extends, the mobile electrical conductor comprising a first portion extending to the outside of the confinement enclosure and a second portion extending inside the confinement enclosure and to which the anode support is electrically connected.
- the mobile electrical conductor which is mobile, in particular in vertical translation, through the fixed portion of the containment.
- the electrolytic cell comprises sealing means for preventing gases generated during the electrolysis reaction from leaving the confinement enclosure via the window through which the mobile electrical conductor passes.
- the movable electrical conductor passes through the fixed portion of the confinement chamber substantially vertically, and the sealing means comprise a dynamic seal surrounding the movable electrical conductor.
- the seal remains advantageously immobile, on the fixed portion of the confinement enclosure, while the mobile electrical conductor translates vertically inside this seal, preferably annular.
- the portion of the fixed portion of the confinement chamber traversed vertically by the movable electrical conductor is a horizontal portion that extends substantially horizontally.
- the first portion of the movable electrical conductor extending outside the confinement enclosure is disposed below the portion of the portion fixed confinement chamber traversed vertically by the movable electrical conductor, while the second portion of the movable electrical conductor extending inside the confinement enclosure is disposed above.
- the movable electrical conductor passes through the fixed portion from bottom to top from its first outer portion to its second portion within the containment. The length of the electric electrolysis circuit is then minimized.
- the movable electrical conductor advantageously comprises, between the second portion and the first portion, a sealing portion intended to cooperate with the seal which is rectilinear and of constant section.
- the seal and ease of design of the dynamic seal are then improved when such a sealing portion slides through the surrounding dynamic seal.
- the movable electrical conductor passes through the fixed portion of the confinement chamber substantially horizontally, and the sealing means comprise a sealing member configured to completely close the window of the fixed portion, whatever the position of the mobile electrical conductor through the window.
- the seal is provided despite the movement, preferably in vertical translation, of the movable electrical conductor.
- the sealing member surrounds the movable electrical conductor and is mounted integral with the movable electrical conductor.
- the sealing member is movable concomitantly with the mobile electrical conductor. This solution provides a more efficient seal with a seal member that would be fixed and should adapt to the movement of the movable electrical conductor.
- the sealing member corresponds to a metal plate extending in a plane substantially parallel to the fixed portion through which it passes.
- the use of a metal plate has the advantage of a contained cost while allowing to withstand, without decreasing performance in terms of sealing, the high temperatures generated by the electrolytic cell in operation, which can reach several hundred degrees Celsius inside the electrolysis cell.
- a compensation member is arranged between the sealing member and the movable electrical conductor.
- This compensating member allows the expansion of the movable electrical conductor and / or the plate in view of the heat generated by the electrolytic cell in operation. while filling a possible gap between the mobile electrical conductor and the metal plate, which contributes to the sealing of the containment.
- the electrolytic cell comprises means for guiding the sealing member in translation, the guide means comprising two substantially rectangular frames fixed against the fixed portion of the containment enclosure so as to surround the window of the fixed portion and arranged relative to each other to delimit between them a space inside which is intended to slide the sealing member, the electrolytic cell further comprising means for expansion compensation interposed between the two frames.
- the electrical conductor is a non-deformable rigid electrical conductor.
- the movable electrical conductor is not flexible and can not deform so that cooperation between the movable electrical conductor and the sealing means is facilitated.
- the anode assembly is supported by the second portion of the electrical conductor and moved via the electrical conductor.
- the electrolytic cell may advantageously be free from a device for supporting the anode assembly other than the mobile electrical conductor or conductors, such a device being capable of affecting the tightness of the confinement enclosure, for example if he passes through this containment.
- the electrolysis cell comprises displacement means intended to move the electrical conductor in substantially vertical translation, the displacement means being arranged integrally outside the confinement enclosure.
- the movement applied by the displacement means to the mobile electrical conductor is then indirectly transmitted to the anode carrier via the non-deformable rigid mobile electrical conductor.
- the mobile electrical conductor is attached to the displacement means outside the confinement enclosure.
- the displacement means are a cylinder specifically associated with the movable electrical conductor serving as a support for the anode assembly.
- the mobile electrical conductor provides three functions in its interactions with the anode assembly. It electrically connects the anode assembly to the electrical conductors disposed outside the containment, supports it and drives it on the move.
- the mobile electrical conductor may be a monobloc or composite electrical conductor with for example a steel structure rather dedicated to the support of the anode assembly and the transmission of displacement, and a copper or aluminum structure rather dedicated to electrical conduction.
- the electrical conductor does not extend straight over said anode assembly, more particularly said anode carrier and anode block.
- the mobile electrical conductor extends outside a volume obtained above the anode assembly by vertical translation of a projected surface of the anode assembly in a horizontal plane.
- the mobile electrical conductor is out of the vertical path of said anode assembly during its removal, so that no manipulation of the mobile electrical conductor is necessary during an anode change. This also prevents any risk of affecting the tightness of the containment.
- the electrical conductor is arranged under the anode support of the anode assembly.
- the anodic support can rest by gravity on the movable electrical conductor, so that the latter does not prevent a withdrawal vertically from the top of the anode assembly, for example for an anode change.
- the upper portion of the confinement enclosure rests on the fixed portion of the containment enclosure.
- the fixed portion defines a substantially horizontal rectangular opening and the upper portion rests substantially horizontally on the fixed portion.
- the electrolytic cell comprises sealing means interposed between the upper portion and the fixed portion.
- the electrolysis cell comprises compression means intended to keep the upper portion pressed against the fixed portion.
- the compression means make it possible to maintain the upper portion in contact with the fixed portion, to improve the sealing of the confinement enclosure at its junction between the removable upper portion and the lateral fixed portion.
- This embodiment is all the more advantageous as sealing means are interposed between the upper portion and the fixed portion.
- the upper portion comprises a plurality of adjacent substantially longitudinal and parallel mutually adjacent covers, extending in a substantially transverse direction of the electrolytic cell, between two opposite longitudinal edges of the electrolytic cell.
- the electrolytic cell comprises means for fixing the anodic support on the electrical conductor, the fixing means being integrally contained within the confinement enclosure.
- the fastening means may comprise two complementary threads, the cooperation of which allows the fixing of the anodic support and the movable electrical conductor by simple screwing.
- the fixing means may comprise a screw connector which compresses the anodic support against the mobile electrical conductor.
- the electrolytic cell comprises several anode assemblies and, for each anode assembly, at least one electrical conductor electrically connected to the anode carrier.
- the anode support comprises a bar which extends substantially horizontally between two opposite longitudinal edges of the electrolytic cell.
- each of the opposite ends of the bar is electrically connected to an electrical conductor.
- each of the opposite ends of the bar is supported by the second portion of an electrical conductor and moved via this electrical conductor.
- the upper portion of the confinement chamber is designed to allow the anode assembly to be extracted by upward vertical translation of the anode assembly and to introduce the anode assembly by vertical downward translation of the anode assembly. anodic set.
- the fixed portion of the containment enclosure comprises a vertical portion extending substantially vertically around and above the opening delimited by the box and the liner. This vertical part forms an interior volume allowing the displacement of the anode assembly in the confinement enclosure for the operation of the electrolytic cell.
- the mobile electrical conductor has a polygonal section portion. Thus, a rotation of the movable electrical conductor about the axis in which it extends relative to the sealing means is prevented.
- an aluminum smelter comprising at least one electrolysis tank having the aforementioned characteristics.
- the smelter may comprise a plurality of electrolytic cells, among which said at least one electrolysis tank, forming a line, the electrolysis tanks being arranged transversely to the length of the line they form.
- FIG. 1 is a vertical sectional view, in a transverse plane of the electrolytic cell, of an electrolytic cell according to one embodiment of the invention
- FIG. 2 is a vertical sectional view, in a transverse plane of the electrolytic cell, of an electrolytic cell according to one embodiment of the invention
- FIG. 3 is a vertical sectional view, in a transverse plane of the electrolytic cell, of an electrolytic cell according to one embodiment of the invention
- FIG. 4 is a side view of a portion of an electrolytic cell according to one embodiment of the invention, in a longitudinal plane of the electrolytic cell;
- FIGS. 5 and 6 are views of side of a portion of an electrolytic cell according to one embodiment of the invention, in a longitudinal plane of the electrolytic cell, according to two distinct positions,
- FIG. 7 is a sectional view along the line I - I of FIG. 5,
- FIG. 8 is a sectional view along the line II-II of FIG. 5,
- FIG. 9 is a sectional view along a substantially horizontal plane of a detail of FIG. 3,
- FIG. 10 is a vertical sectional view, in a transverse plane of the electrolytic cell, of an electrolytic cell according to one embodiment of the invention.
- Figure 11 is a vertical sectional view, in a longitudinal plane of the electrolysis cell, of an electrolytic cell according to one embodiment of the invention.
- FIG 1 shows an electrolytic tank 1 according to one embodiment of the invention.
- the electrolysis tank 1 is intended for the production of aluminum by electrolysis.
- the electrolysis tank 1 is intended to be arranged transversely with respect to the length of a line of electrolysis cells to which it belongs. Thus, it extends in length in the longitudinal direction Y while the row of electrolysis cells extends in length in the transverse direction X.
- the electrolysis tank 1 comprises a box 2, which may be metallic, for example steel, and an inner coating 4, typically refractory materials.
- the box 2 is here provided with cradles 6 reinforcements.
- the casing 2 and its lining 4 defines an opening through which are intended to extend a plurality of anode assemblies.
- These anode assemblies comprise an anodic support 8 and at least one anode block 10 or anode, supported by the anodic support 8.
- the anodic support comprises, for example, a support bar 80, which can extend substantially horizontally between two opposite longitudinal edges of the electrolytic cell and the rods 81.
- the anode block 10 is more particularly attached to the anodic support 8 at means of logs 81 sealed with cast iron in holes provided for this purpose in the anode block 10.
- the anode or anode block 10 is in particular of carbon material, and more particularly of precooked type. It is intended in operation to be immersed in an electrolytic bath and to be consumed. The anode assemblies are intended to be removed and replaced periodically when the anodes 10 are worn. Due to the consumption of the anode blocks 10 as the electrolysis reaction proceeds, the electrolysis tank 1 comprises means for moving the anode assemblies, making it possible to translate the anode assemblies substantially vertically only. These means of displacement will be described in more detail below.
- the electrolysis tank 1 comprises flexible electrical conductors 14 which can extend on either side of the electrolysis tank 1, as can be seen in particular in FIG. 3, at the two longitudinal edges of the tank. 1 electrolysis.
- the flexible electrical conductors 1 can extend from one side of the electrolysis tank 1, at one of the two longitudinal edges of the electrolysis cell 1, also of bottom up.
- the flexible electrical conductors 14 are intended to conduct the electrolysis current to the anode blocks 10, from electrical conductors for routing (not shown) of a preceding electrolytic cell in the queue in view of the overall direction of circulation. electrolysis current, while accompanying and adapting by their flexibility to the displacement in vertical translation of the anode assemblies. In other words, the flexible electrical conductor 14 has two ends that can move relative to each other vertically while providing a permanent electrical connection.
- the flexible electrical conductors 14 may correspond to a superposition of electrically conductive flexible sheets.
- the electrolysis tank 1 also comprises a cathode 16, optionally formed of several cathodic blocks made of carbonaceous material, and crossed by cathodic conductors 18 intended to collect the electrolysis current for conducting it towards cathode outlets crossing the box 2. and connected to routing conductors (not shown) leading in turn the electrolysis current to the flexible electrical leads 14 of a subsequent electrolysis cell in the queue.
- the cathodic conductors, cathodic outputs and routing conductors may be metal bars, for example aluminum, copper or steel.
- the electrolysis tank 1 comprises a containment chamber 22 for confining the gases generated during the electrolysis reaction.
- This containment enclosure delimits a closed volume above the opening in the box and the liner, through which is intended to be moved an anode assembly.
- This containment chamber 22 may be at least partially confused with the box and a superstructure of the electrolysis tank 1.
- the confinement chamber 22 comprises a movable top portion 220 forming a cover, disposed above a fixed portion 230.
- the fixed portion 230 more particularly comprises the box 2 and a substantially vertical wall 231 extending around the opening above the box 2.
- the substantially vertical wall 231 for example bears on the upper edges of the box 2.
- the portion Fixed 230 is advantageously rigid, the wall 231 being stationary relative to the caisson 2.
- the upper portion 220 is removable to allow extraction of the anode assemblies by drawing them substantially vertically from above over the electrolysis tank 1, as shown in FIG. 11.
- the fixed portion 230 forms a volume interior for extracting the anode assembly by upward vertical translation of the anode assembly and to introduce the anode assembly by downward vertical translation of the anode assembly. An exclusively vertical displacement of the anode assemblies above the opening encounters no obstacle.
- anode assemblies are integrally contained in the enclosure 22 for confinement.
- the electrolysis tank 1 also comprises movable electrical conductors 26 intended to conduct the electrolysis current to the anodic support 8 from the flexible electrical conductors 14.
- the movable electrical conductors 26 comprise a second portion 260 disposed inside the containment enclosure 22 which is electrically connected to the anode assembly, in particular to the anode support 8, and more particularly to one end of the support bar 80. .
- the movable electrical conductors 26 also comprise a first portion 262 disposed outside the containment enclosure 22 which is electrically connected to the flexible electrical conductors 14.
- the mobile electric conductors 26 are advantageously rigid, non-deformable electrical conductors.
- the movable electrical conductors 26 may correspond, for example, to a metal support bar, in particular steel, copper, aluminum or steel / copper composite.
- the mobile electrical conductor (s) extend outside the box (2) without extending to the right of the opening delimited by the box (2) and its interior coating (4), above the latter, so that the electrical connection between the movable electrical conductor 26 and the corresponding anodic support 8 is necessarily carried out at one side of the electrolysis tank 1, but not above the opening delimited by the box 2.
- no obstacle hinders the extraction of the anode blocks 10 above the tank 1 electrolysis.
- the mobile electrical conductors 26 allow the electrolysis current to be routed from outside the containment enclosure 22 to the entire anode assembly contained in the containment enclosure 22.
- the mobile electric conductors 26 are movable concomitantly with the anode assembly. Thus, they are intended to be translated substantially vertically as the consumption of the anodes 10.
- the flexible electrical conductors 14 are arranged outside the containment enclosure 22. Each flexible electrical conductor 14 is electrically connected to a movable electrical conductor 26 and adapts to the displacement of this movable electrical conductor 26 and the associated anode assembly.
- the second portion 260 of the movable electrical conductors 26 extends inside the containment enclosure 22, so that the electrical connection with the anode carrier 8 is carried out inside the containment enclosure 22.
- the anode assembly is free from any interaction with the containment enclosure 22, so that this containment enclosure 22 is not likely to be affected either by the replacement of the anode assembly or by the displacement of the anode assembly downwards as the consumption of its or anode blocks 10.
- the fixed portion 230 of the confinement chamber 22 has a window 232 across which extends one of the movable electrical conductors 26 which moves vertically.
- the first portion 262 of the movable electrical conductor 26 extends outside the containment enclosure 22, while its second portion 260 extends inside the containment enclosure 22.
- the mobile electrical conductor 26 passes through the fixed portion 230 of the containment enclosure.
- the electrolysis tank 1 then advantageously comprises sealing means to prevent the gases generated during the electrolysis reaction from leaving the containment enclosure 22 via the window 232 traversed by the movable electrical conductor 26.
- the movable electrical conductors 26 pass through the fixed portion 230 of the containment enclosure 22, and more particularly the window 232, substantially vertically and move vertically in translation.
- the portion of the fixed portion 230 of the containment chamber traversed vertically by the movable electrical conductor 26 is a horizontal portion which extends substantially horizontally.
- This horizontal part of the containment enclosure 22 may for example be a flap on the upper edges of the caisson 2 or a horizontal wall attached to the upper edges of the caisson 2.
- the first portion 262 of the movable electrical conductor extends to the outside of the containment chamber is disposed below the portion of the fixed portion 230 of the confinement chamber 22 traversed vertically by the movable electrical conductor 26, while the second portion 260 of the mobile electrical conductor 26 extending inside the containment enclosure 22 is disposed above.
- the movable electrical conductor 26 passes through the fixed portion from bottom to top from its first outer portion 262 to its second portion 260 within the containment. The length of the electric electrolysis circuit is then minimized.
- the sealing means here comprise a dynamic seal 32 surrounding the electrical conductor 14 moving in vertical translation.
- This annular dynamic sealing seal 32 may for example consist of metal strips, brushes or a flexible or elastic material resistant to temperature and gases. Moreover, these seals 32 will have a very weak aging because not exposed to shocks.
- the movable electrical conductor 26 comprises between the second portion 260 and the first portion 262 a sealing portion 261 intended to cooperate with the seal 32.
- This sealing portion is advantageously rectilinear and of constant section, so as to improve sealing and facilitate the design of the dynamic seal.
- the movable electrical conductors 26 pass through the fixed portion 230 of the containment enclosure 22, and more particularly the window 232, substantially horizontally and move vertically in translation.
- the window 232 is more particularly formed in a portion or wall 231 substantially of the fixed portion 230.
- the sealing means then comprise a sealing member 34 configured to completely close the window 232 of the fixed portion, regardless of the position of the movable electrical conductor 26 through the window 232.
- the movable electrical conductors 26 are movable, with the anode assembly, between a first position, or up position (FIG. 5), corresponding in particular to a position in which the anode assembly comprises a new anode block 10, and a second position, or low position ( Figure 6), in particular corresponding to a position in which the anode block 10 is worn and must be replaced.
- the difference between these two positions defines a vertical travel d of the mobile electrical conductor 26 to be allowed by the window 232 and the sealing means.
- the sealing member 34 surrounds the mobile electrical conductor 26 to which it is associated.
- the sealing member 34 is mounted integral with the movable electrical conductor 26.
- the sealing member 34 may for example comprise two parts between which is intended to be inserted the movable electrical conductor 26, and fastening means, such as screws 36, for fixing the two parts to each other. other.
- the sealing member 34 may correspond to a metal plate extending in a plane substantially parallel to the plane in which the adjacent fixed portion 230 extends.
- a compensation member 38 may be arranged between the metal plate and the movable electrical conductor 26 which it surrounds.
- the electrolysis tank 1 may further comprise means for guiding this metal plate in translation.
- the guiding means comprise for example two substantially rectangular frames 40, fixed against the fixed portion 230 of the containment enclosure 22 so as to surround the window 232, for example by means of screws 41, and arranged one by relative to the other to delimit between them a space inside which is intended to slide the metal plate.
- the electrolysis tank 1 may also comprise expansion compensation means interposed between the two frames, such as a flexible seal making it possible to be sufficiently compressed to bring the sealing member 34 into contact with the frames 40, and this for sealing while allowing sliding between the sealing member 34 and the frames 40.
- the movable electrical conductor 26 may have a portion with a polygonal section, for example a square section. or rectangular, especially to the passage of the confinement enclosure, so that a rotation of the electrical conductor 26 movable about the axis in which it extends relative to the sealing means is prevented.
- anode assembly can be integrally supported at each of the ends of the support bar 80 by the second portion 260 of the movable electrical conductor (s) 26, so that no auxiliary support device capable of interacting with the enclosure 22 of confinement is necessary.
- the movable electrical conductors 26 thus provide both an electrical connection function with the anode assembly and mechanical support of the anode assembly ensuring the displacement of the anode assembly.
- the electrolysis tank 1 may comprise a plurality of movable electrical conductors 26 electrically connected to the same anodic support 8, the second portions 260 of these movable electrical conductors 26 supporting the anode assembly.
- the electrolysis tank 1 may comprise, for each anodic support 8, two movable electrical conductors 26 arranged at either side at two sides. opposed to the electrolysis tank 1.
- each anode support 8 may comprise an upstream end 82 electrically connected and supported by the second portion 260 of an upstream movable electrical conductor 26, and a downstream end 83 electrically connected and supported by a downstream movable electrical conductor 26.
- upstream / downstream are defined with respect to the direction of global circulation of the electrolysis current in the row of electrolysis cells.
- the electrolysis tank 1 comprises, for each anodic support 8, a single mobile electric conductor 26 arranged at one of the two sides of the electrolysis tank 1. Where appropriate, it is the upstream end 82 which is advantageously electrically connected and supported by the movable electrical conductor 26, in order to minimize the overall length of the electrolysis conductor circuit.
- the one or more movable electrical conductors 26 are movable with the anode assembly to which they are electrically connected.
- mobile electric conductors 26 can advantageously fully mechanically support the anode assembly to which they are electrically connected.
- the electrolysis tank 1 may comprise displacement means which are advantageously arranged to move the conductor or drivers 26 mobile electric, according to a vertical translational movement.
- the displacement means comprise a jack 42 separated by a movable electrical conductor 26, a movable end of which is attached to the first portion 262 of one of the movable electrical conductors 26 supporting the assembly. anodic.
- a fixed part of the jack 42 may be attached to a fixed element, for example to the fixed portion 230 of the confinement enclosure 22, in particular to the caisson 2 or to the wall 231.
- Each movable electrical conductor 26 is set in motion by separate displacement means and more particularly a cylinder 42 distinct. The displacement means of the different anode assemblies are therefore distinct.
- the displacement means can comprise, on this side of the tank 1 electrolysis and similarly, a jack 42 whose one end is attached to the fixed portion 230 of the confinement chamber 22, while the end of the jack 42 is attached to the first portion 262 of the corresponding mobile electrical conductor 26 supporting the anode assembly.
- the displacement means may comprise a jack 43 and a mobile support 45 offset, guided vertically and supporting the anodic set. Sealing means similar to those previously described may be provided around the support 45.
- each movable electrical conductor 26 can be arranged under the anodic support 8 of the anode assembly, so that it can rest by gravity on the second portion 260 of the movable electrical conductors 26.
- the mobile electrical conductor (s) 26 may extend under the anodic support 8 of the anode assembly without extending above and to the right of the corresponding anode assembly.
- the electrolysis tank 1 comprises sealing means. interposed between the upper portion 220 and the fixed portion 230 on which the upper portion 220 rests at least in part.
- the sealing means may comprise a static seal 44 interposed between the upper portion 220 and the fixed portion 230.
- the electrolysis tank 1 may comprise compression means, such as a screw system, intended to keep the upper portion 220 pressed against the fixed portion 230.
- the upper portion 220 may comprise a plurality of adjacent substantially longitudinal and parallel mutually adjacent hoods 222, extending in a substantially transverse direction X of the electrolysis vessel 1, between two opposite longitudinal edges of the electrolysis tank 1.
- the support means correspond for example to beams 46 extending in the substantially transverse direction X of the electrolysis tank 1. These beams 46 may be part of the superstructure.
- the beams 46 may also support ancillary devices such as stitching and feeding devices.
- the invention also relates to an aluminum smelter comprising at least one electrolysis tank 1 according to the invention.
- the electrolysis tanks of this aluminum plant form a line, and are arranged transversely to the length of this line.
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 Metals (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1400169A FR3016894B1 (en) | 2014-01-27 | 2014-01-27 | ELECTROLYSIS TANK HAVING AN ANODIC ASSEMBLY CONTAINED IN A CONFINEMENT ENCLOSURE |
PCT/IB2015/000072 WO2015110904A1 (en) | 2014-01-27 | 2015-01-23 | Electrolysis tank comprising an anode assembly contained in a containment enclosure |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3099844A1 true EP3099844A1 (en) | 2016-12-07 |
EP3099844A4 EP3099844A4 (en) | 2017-11-22 |
EP3099844B1 EP3099844B1 (en) | 2022-10-19 |
Family
ID=51292995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15740994.7A Active EP3099844B1 (en) | 2014-01-27 | 2015-01-23 | Electrolysis tank comprising an anode assembly contained in a containment enclosure |
Country Status (12)
Country | Link |
---|---|
US (1) | US10513788B2 (en) |
EP (1) | EP3099844B1 (en) |
CN (1) | CN105934538B (en) |
AR (1) | AR099184A1 (en) |
AU (1) | AU2015208858B2 (en) |
BR (1) | BR112016015154B1 (en) |
CA (1) | CA2935676C (en) |
DK (1) | DK179941B1 (en) |
EA (1) | EA033165B1 (en) |
FR (1) | FR3016894B1 (en) |
MY (1) | MY179496A (en) |
WO (1) | WO2015110904A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3032454B1 (en) * | 2015-02-09 | 2020-10-23 | Rio Tinto Alcan Int Ltd | SEALING SYSTEM FOR AN ELECTROLYSIS TANK |
NO341336B1 (en) * | 2015-11-20 | 2017-10-16 | Norsk Hydro As | Method and means for application of anode covering material (ACM)in an electrolysis cell of Hall-Héroult type for aluminium production. |
EA201990554A1 (en) * | 2016-09-19 | 2019-07-31 | Элизис Лимитед Партнершип | ANODE DEVICE AND RELATED WAYS |
CN110872717A (en) * | 2018-08-30 | 2020-03-10 | 武汉市德成科技工程研究院有限责任公司 | Novel conduction mode of carbon continuous anode of aluminum electrolytic cell |
FR3090700B1 (en) * | 2018-12-20 | 2021-01-01 | Rio Tinto Alcan Int Ltd | Anode assembly and electrolysis cell including this anode assembly |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH340635A (en) * | 1955-10-06 | 1959-08-31 | Aluminium Ind Ag | Method for topping up the lowerable aluminum sheet cladding of a self-baking anode of an aluminum electrolysis furnace |
US3575827A (en) * | 1967-12-06 | 1971-04-20 | Arthur F Johnson | System for reduction of aluminum |
NO124039B (en) * | 1968-06-07 | 1972-02-21 | Montedison Spa | |
DE2805374C2 (en) * | 1978-02-09 | 1982-07-15 | Vereinigte Aluminium-Werke Ag, 5300 Bonn | Process for the production of aluminum by molten electrolysis |
DE2910811C2 (en) * | 1979-02-16 | 1982-02-18 | Schweizerische Aluminium AG, 3965 Chippis | Power supply device for electrodes |
DE3009098C2 (en) * | 1979-12-21 | 1983-02-24 | Schweizerische Aluminium AG, 3965 Chippis | Method of conducting electricity between electrolytic furnaces |
NO167872C (en) * | 1989-01-23 | 1991-12-18 | Norsk Hydro As | ELECTROLY OVEN WITH CONTINUOUS ANODE FOR MANUFACTURING AVALUMINIUM. |
RU2080419C1 (en) * | 1994-11-08 | 1997-05-27 | Акционерное общество открытого типа "Сибирский научно-исследовательский, конструкторский и проектный институт алюминиевой и электродной промышленности" | Anode unit of aluminium electrolyzer |
WO1998053120A1 (en) * | 1997-05-23 | 1998-11-26 | Moltech Invent S.A. | Aluminium production cell and cathode |
WO2004035872A1 (en) | 2002-10-14 | 2004-04-29 | Aluminium Pechiney | Electrolytic cell leak limiter |
FR2851810B1 (en) * | 2003-02-28 | 2006-02-17 | Ecl | VERIN FOR THE DISPLACEMENT OF AN ANODIC FRAMEWORK OF AN ELECTROLYSIS CELL FOR THE PRODUCTION OF ALUMINUM |
WO2012021924A1 (en) * | 2010-08-16 | 2012-02-23 | Aluminium Smelter Developments Pty Ltd | Rodless anode cassette |
CN103080383A (en) * | 2010-09-08 | 2013-05-01 | E.C.L.公司 | Handling tool, for secure handling of connectors of electrolysis cells intended for aluminium production |
CN202000002U (en) * | 2011-03-24 | 2011-10-05 | 运城市关铝设备材料有限公司 | Novel anticorrosion and anti-deformation heat preserving seal groove cover for electrolysis bath |
EP3030696B1 (en) | 2013-08-09 | 2020-04-29 | Rio Tinto Alcan International Limited | Electrolytic device and anode assembly intended for the production of aluminium, electrolytic cell and apparatus comprising such a device |
-
2014
- 2014-01-27 FR FR1400169A patent/FR3016894B1/en active Active
-
2015
- 2015-01-23 AU AU2015208858A patent/AU2015208858B2/en active Active
- 2015-01-23 CA CA2935676A patent/CA2935676C/en active Active
- 2015-01-23 DK DKPA201670538A patent/DK179941B1/en active IP Right Grant
- 2015-01-23 EA EA201691527A patent/EA033165B1/en not_active IP Right Cessation
- 2015-01-23 US US15/111,486 patent/US10513788B2/en active Active
- 2015-01-23 BR BR112016015154-2A patent/BR112016015154B1/en active IP Right Grant
- 2015-01-23 MY MYPI2016702696A patent/MY179496A/en unknown
- 2015-01-23 WO PCT/IB2015/000072 patent/WO2015110904A1/en active Application Filing
- 2015-01-23 CN CN201580005916.9A patent/CN105934538B/en active Active
- 2015-01-23 EP EP15740994.7A patent/EP3099844B1/en active Active
- 2015-01-26 AR ARP150100211A patent/AR099184A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CA2935676C (en) | 2023-03-28 |
DK201670538A1 (en) | 2016-09-05 |
BR112016015154B1 (en) | 2022-01-04 |
FR3016894A1 (en) | 2015-07-31 |
CA2935676A1 (en) | 2015-07-30 |
BR112016015154A2 (en) | 2017-08-08 |
WO2015110904A1 (en) | 2015-07-30 |
EA201691527A1 (en) | 2016-12-30 |
AU2015208858B2 (en) | 2018-11-01 |
AR099184A1 (en) | 2016-07-06 |
EP3099844A4 (en) | 2017-11-22 |
EP3099844B1 (en) | 2022-10-19 |
CN105934538B (en) | 2019-03-19 |
US20160326661A1 (en) | 2016-11-10 |
CN105934538A (en) | 2016-09-07 |
US10513788B2 (en) | 2019-12-24 |
EA033165B1 (en) | 2019-09-30 |
MY179496A (en) | 2020-11-09 |
FR3016894B1 (en) | 2017-09-01 |
AU2015208858A1 (en) | 2016-07-28 |
DK179941B1 (en) | 2019-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3099844B1 (en) | Electrolysis tank comprising an anode assembly contained in a containment enclosure | |
CA2919331C (en) | Electrolytic device and anode assembly intended for the production of aluminium, electrolytic cell and apparatus comprising such a device | |
EP3099840B1 (en) | Electrolysis tank comprising an anodic assembly hoisting device | |
CA2935478C (en) | Hooding system for an electrolytic cell | |
OA17827A (en) | Electrolysis cell comprising an anode assembly contained in a containment enclosure. | |
EP3099842B1 (en) | Electrolysis tank casing | |
WO2016128827A1 (en) | Electrolysis cell, aluminium smelter comprising said cell, and method for placing an anode assembly in said cell | |
FR3032454A1 (en) | SEALING SYSTEM FOR AN ELECTROLYSIS TANK | |
FR3016900A1 (en) | ELECTROLYSIS DEVICE AND ANODE ASSEMBLY FOR THE PRODUCTION OF ALUMINUM, ELECTROLYSIS CELL AND INSTALLATION COMPRISING SUCH A DEVICE. | |
WO2016128825A1 (en) | Anode assembly and an electrolytic cell for producing liquid aluminium comprising said anode assembly, aluminium smelter comprising said cell, and method for positioning an anode assembly in said cell | |
FR3032457A1 (en) | SERVICE MODULE FOR THE OPERATION OF AN ALUMINUM PRODUCTION PLANT | |
FR3016898A1 (en) | DEVICE FOR DRILLING A CRYOLITHARY BATH CRUSH POSSIBLE TO BE POSITIONED IN PERIPHERY OF AN ELECTROLYSIS TANK. | |
OA17791A (en) | Electrolysis device and anode assembly intended for the production of aluminum, electrolysis cell and installation comprising such a device | |
EP3099843A1 (en) | Device for storing a load above an electrolytic cell | |
FR3016893A1 (en) | ELECTROLYSIS TANK COMPRISING A CLOSING WALL | |
WO2016128822A1 (en) | Electrolytic cell for producing liquid aluminum, and aluminum smelter including said cell |
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20160804 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RAX | Requested extension states of the european patent have changed |
Extension state: BA Payment date: 20160804 |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20171019 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C25C 3/16 20060101ALI20171013BHEP Ipc: C25C 3/12 20060101ALI20171013BHEP Ipc: C25C 3/10 20060101AFI20171013BHEP Ipc: C25C 3/22 20060101ALI20171013BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20190306 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20220107 |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTC | Intention to grant announced (deleted) | ||
INTG | Intention to grant announced |
Effective date: 20220531 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602015081229 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: FRENCH |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1525592 Country of ref document: AT Kind code of ref document: T Effective date: 20221115 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NO Ref legal event code: T2 Effective date: 20221019 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20221019 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1525592 Country of ref document: AT Kind code of ref document: T Effective date: 20221019 |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221019 |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20221019 Ref country code: PT 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: 20230220 Ref country code: LT 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: 20221019 Ref country code: FI 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: 20221019 Ref country code: ES 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: 20221019 Ref country code: AT 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: 20221019 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NO Payment date: 20230110 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS 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: 20221019 Ref country code: PL 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: 20221019 Ref country code: LV 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: 20221019 Ref country code: IS 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: 20230219 Ref country code: HR 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: 20221019 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: 20230120 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602015081229 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM 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: 20221019 Ref country code: RO 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: 20221019 Ref country code: EE 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: 20221019 Ref country code: DK 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: 20221019 Ref country code: CZ 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: 20221019 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602015081229 Country of ref document: DE |
|
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 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK 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: 20221019 Ref country code: AL 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: 20221019 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
26N | No opposition filed |
Effective date: 20230720 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20230123 |
|
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: 20230123 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20230131 |
|
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: 20230131 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230123 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230801 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI 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: 20221019 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230123 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20231222 Year of fee payment: 10 |