WO2011067477A1 - Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee - Google Patents
Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee Download PDFInfo
- Publication number
- WO2011067477A1 WO2011067477A1 PCT/FR2010/000691 FR2010000691W WO2011067477A1 WO 2011067477 A1 WO2011067477 A1 WO 2011067477A1 FR 2010000691 W FR2010000691 W FR 2010000691W WO 2011067477 A1 WO2011067477 A1 WO 2011067477A1
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- WO
- WIPO (PCT)
- Prior art keywords
- anode
- powder
- support
- spent
- bath
- Prior art date
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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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
Definitions
- the present invention relates to a method of changing a spent anode from an aluminum electrolysis cell comprising in particular a step of temporarily storing such a spent anode.
- the invention also relates to a support and a system for the temporary storage of at least one such spent anode.
- Aluminum metal is produced industrially by electrolysis of alumina in solution in an electrolyte bath, consisting essentially of cryolite, according to the Hall-Héroult process.
- the electrolyte bath is contained in an electrolysis cell comprising a steel box lined internally with refractory and / or insulating materials, and at the bottom of which is located a cathode assembly.
- Anodes typically of carbonaceous material, are partially immersed in the electrolyte bath.
- Each anode is provided with a metal rod for its electrical and mechanical connection to an anode frame movable relative to a gantry fixed above the electrolytic cell.
- a spent anode coming from an electrolytic cell emits fluorinated gases which can be harmful for man and for the environment.
- the emissions are all the more important as the temperature of the anode is important, and decreases gradually at the same time as the temperature.
- a proposed method consists of placing the spent anode on its support in a closed box intended to prevent the uncontrolled exit of the fluorinated gases.
- the gases in the box are sucked to a central processing.
- the box includes a filter containing alumina, which is capable of trapping fluorinated gases.
- the box comprises an opening through which the anode rod passes and which is provided with a flexible sealing element cooperating with said rod.
- the present invention aims to overcome the disadvantages mentioned above, by providing a more reliable and efficient method than the processes of the prior art.
- the invention relates to a method of changing a spent anode from an aluminum electrolysis cell comprising at least one anode immersed in an electrolysis bath and a blanket of bath covering the anode and the liquid bath, characterized in that the method comprises the steps of:
- the spent anode placed on the support and covered with choking powder can then be transported to a reprocessing station of the spent anode.
- the invention particularly relates to tanks using anodes precooked carbon material.
- the powder covers the anode so as to:
- the choking powder prevents the arrival of water and ambient moisture to the anode, the amount of HF fluorinated gas emitted by the anode is limited.
- the choking powder does not oxidize and is not consumed at the maximum temperature to which it is subjected during the implementation of the process.
- the spent anode placed on the support to be covered by the powder can reach a temperature of the order of 950 ° C. It may be thought that there is also a phenomenon of at least partial vitrification of the smothering powder.
- the choking powder is poured onto the anode and the bath cover pieces which are at an intense temperature at the outlet of the electrolysis bath.
- the powder must cover the anode - ie the top and the perimeter of the carbon part of the anode as well as the pieces of bath cover covering the anode - to a thickness sufficient to produce the choking effect described above.
- the powder thickness may be at least of the order of 0.5 cm, preferably at least of the order of 2 cm. For economic reasons, it is best to limit the thickness of powder used.
- the powder is selected from the group consisting of alumina, products comprising aluminum fluoride and / or sodium fluoride, such as cryolite, or a mixture thereof.
- alumina products comprising aluminum fluoride and / or sodium fluoride, such as cryolite, or a mixture thereof.
- These products are interesting in that they are available in any primary aluminum production plant. Products containing silica, such as sand, which are easy to obtain and handle, could also be used.
- Alumina has the advantage of trapping fluorinated gases by adsorption.
- the product comprising aluminum fluoride and / or sodium fluoride has the advantage over alumina of being able to form a compact and impervious crust which prevents the passage of gas, namely the passage of oxygen inwards , that is to say towards the anode, and the passage of fluorinated gases to the outside, that is to say towards the ambient atmosphere.
- the quenching powder comprises alumina, aluminum fluoride and / or sodium fluoride.
- a quenching powder may comprise at least a portion of the reduced bath coverage in powder form.
- a choking powder comprising alumina, aluminum fluoride and / or sodium fluoride, is obtained in particular by recycling the bath cover of spent anode assemblies, which is ie the solidified part of the electrolyte present in the tank, located in particular along the side wall of the tank, at the free surface of the electrolyte and on the anodes. This blanket is then ground and passed through a screen to give all or part of the choking powder used by the process according to the invention.
- This bath cover is widely available in a primary aluminum production plant. Thus, it is not necessary to use products specially provided for the implementation of the method according to the invention, which is advantageous for environmental issues, practicality and cost.
- the quenching powder comprises at least in part the powdered electrolysis bath after solidification.
- the method provides for pre-filling with powder at least one reservoir functionally associated with the support and for opening said reservoir or reservoirs when a spent anode is present on the support.
- the confinement means may be arranged on the support.
- the confinement means are arranged on a device for feeding the powder to the support.
- the invention relates to a support for the temporary storage of at least one spent anode coming from an electrolysis cell of aluminum, for the implementation of the method as previously described, the support comprising a substantially horizontal plate, when placed on the ground, having at least one cell in which an anode is intended to be placed.
- this support also comprises at least one reservoir functionally associated with the tray and comprising at least:
- an orifice for pouring the powder towards the anode arranged to allow the anode to be covered by the powder thus discharged, in order to limit the emission of fluorinated gases by the anode, preferably by limiting the powder dispersion by flight.
- the tanks which can be pre-filled with powder, it is possible to quickly cover the spent anode once it is placed on the tray of the support, and thus quickly stop the emissions of fluorinated gases.
- This support may advantageously be in the form of a pallet that can be lifted and moved by appropriate means.
- a reprocessing station comprising in particular a unit for separating the constituent elements of the anode and then to a unit for recovering anode materials, namely in particular the blanket and the unconsumed carbonaceous material.
- the orifice generally has a closure wall which can occupy a closed position, in particular when powder is introduced into the reservoir in order to be able to hold the powder on standby, and which can be moved to an open position allowing the spill of the powder when an anode is located on the tray.
- the support may further comprise means capable of detecting the presence of a spent anode on the plate such as a sensor and, consequently, of automatically controlling a device for opening the closure wall.
- a device for opening the closure wall may for example comprise a spring and an air damper cylinder.
- the sensor used may be, for example, a thermal sensor or an optical sensor.
- the support comprises at least two reservoirs disposed on opposite sides of the tray.
- Each reservoir can extend over substantially the entire length of the side on which it is disposed.
- the support thus forms a kind of closed receptacle on at least two sides, which can retain the powder spilled on the anode.
- the support comprises a reservoir on each of the sides of the plate, the reservoirs then forming a substantially closed peripheral surface.
- Each reservoir is advantageously arranged so that the entire length of the anode is covered with powder.
- the discharge port of the powder may extend over substantially the entire length of each reservoir in a contemplated embodiment of the invention.
- At least a portion of the powder discharge orifice is located above the anode when it is present on the tray, which facilitates the recovery of the anode.
- the tank may comprise internal powder distribution means such as baffles, tubes or spacers, arranged to promote a homogeneous filling of said tank.
- internal powder distribution means such as baffles, tubes or spacers, arranged to promote a homogeneous filling of said tank.
- the tank has a bottom wall inclined downward towards the anode when it is present on the plate, to promote the flow of the powder.
- the invention relates to a system for the temporary storage of at least one spent anode coming from an electrolysis cell of aluminum, for the implementation of the method as previously described, the system comprising a support comprising a substantially horizontal plate, when it is placed on the ground, on which the anode is intended to be placed.
- the system according to the invention comprises a device for feeding a quenching powder to the support, said device comprising a hopper able to be moved on a traveling crane fitted with a powder discharge duct. view of the recovery of the anode by the powder, in order to limit the emission of fluorinated gases by the anode.
- the duct is extended at its lower part by a downwardly open cap which is able to cover the anode located on the plate and to form with the support a confinement volume for the powder.
- the confinement volume is not necessarily tight but nevertheless makes it possible to significantly limit the dispersion of the powder.
- the cap may have substantially the shape of a bell covering the support, the anode and its stem.
- the system comprises a suction duct in communication with said confinement volume. This creates a slight depression inside the containment volume to prevent the powder from escaping to the outside.
- it may further be provided an aspiration of the powders and / or fluorinated gases emitted by the anode.
- the support belonging to this system may comprise some of the aforementioned characteristics, and in particular the powder reservoir (s).
- Figure 1 illustrates an electrolysis cell in cross section
- FIG. 2 is a schematic representation, in perspective, of a support according to the invention, on which is placed a worn anode provided with its rod and having a cover crust;
- FIG. 3 is a representation identical to FIG. 2, the worn anode being covered with a powder;
- FIG. 4 is a perspective view of a support according to a first embodiment of the invention, an anode provided with its rod being placed on the support;
- Figure 5 is a detail view of a reservoir belonging to the support of Figure 4, showing a powder discharge port;
- FIG. 6 is a detailed view of the support of FIG. 4, showing a reservoir equipped with internal means for distributing the powder;
- Figure 7 is a schematic representation of a first embodiment of a system according to the invention, comprising the support of Figure 4 and a powder supply device;
- FIG. 8 is a schematic representation of a second embodiment of a system according to the invention, comprising a temporary anode storage medium and a powder supply device.
- an electrolysis tank 40 typically comprises a metal box 41 internally lined with refractory materials 42a, 42b, cathodic assemblies made of carbonaceous material 43, anode assemblies 55, a support structure 53, means 51 for recovering the effluents emitted by the tank in operation and means 50 for supplying the alumina and / or AIF3 tank.
- the anode assemblies 55 typically comprise an anode block - or anode - 2a, 2b and a rod 3a, 3b.
- Each rod 3a, 3b typically comprises a connecting member or multipode 4a, 4b for fixing the anode block 2a, 2b.
- the vessel comprises a liquid aluminum bed 44, a liquid bath bed 45 and a cover 46 based on solid bath and alumina.
- the change program of the anode assemblies is generally designed in such a way that they have a different degree of wear (in FIG. anodic 2a is less worn than the anode block 2b).
- the electrolysis current flows from the anode blocks to the cathode elements.
- the cathode current is recovered by conducting bars 52.
- FIG. 2 schematically represents a support 1 for implementing the method, according to the invention, of temporary storage of a spent anode 2 originating from an aluminum electrolysis cell.
- each anode 2 is partially immersed in the electrolyte bath present in the vessel (not shown).
- the anode is connected, via a connecting member 4, to a rod 3 which is attached to an anode frame.
- a connecting member 4 When the anode 2 is worn and must be changed, it is moved and placed on the support 1, usually metal, typically steel, which is usually located near the tank.
- the lower surface of the carbon block of the anode rests on the horizontal bottom of the support.
- This operation is generally carried out using a service machine, for example a bridge or a machine on the ground.
- the anode 2 then has a relatively high temperature, which can be of the order of 950 ° C.
- Fluorinated gases are emitted by the spent anode 2, essentially by one or more blanks that remain attached to the spent anode 2 when it is extracted from the bath.
- the process according to the invention provides for the covering of the anode 2 with a quenching powder.
- the powder 5 preferably covers the entire anode 2 with the cover pieces that are attached to it, and can thus also partly cover the connecting member 4 connecting the anode 2 to the 3.
- the powder thickness may be of the order of 4 to 5 cm.
- the powder used preferably comprises a fluorinated compound with alumina.
- the powder can be obtained from a bath blanket which is widely available in a primary aluminum production plant.
- the bath cover that forms above the liquid bath and the anodes consists essentially of alumina and cryolite. It is available in a solid state that should be crushed and sifted to obtain a powder that can be used to cover a worn anode. It has been found that the powder The result of cover crushing has a high containment power which, combined with its availability, makes it a preferred option.
- the powder 5 from an electrolysis bath taken from an electrolytic cell and solidified as an ingot. This is a component that is also available in a liquid aluminum production facility.
- the ingot bath is reduced to the state of powder, for example by grinding and then sizing.
- the powder may incorporate sand in part or in whole.
- the powder 5 is advantageously recovered, treated and recycled.
- the milled bath is also a material that can be recycled in the plant and used for different applications. It is usually stored in a silo constituting a general reserve in the plant.
- the support 1 comprises a substantially horizontal plate 6, of generally rectangular shape, provided with vertical ribs 7 which delimit a cell 17 in which the anode 2 is intended to be placed.
- the support 1 has flanges 8 on all or part of the sides of the plate 6.
- the support 1 can be multi-cell as shown in FIG. 4 which shows a support 1 which has three cells 17.
- the support 1 comprises reservoirs 9 mounted on the plate 6, which temporarily store the powder 5.
- the support 1 comprises two reservoirs 9 arranged on opposite sides of the plate 6 , each reservoir 9 extending over substantially the entire length of the corresponding side.
- the reservoirs 9 of the supports 1 of the same set are aligned along the long sides of said assembly, as seen in FIG. 4.
- the quantity of powder required can be between 100 and 1200 kg per anode, more typically between 300 and 1000 kg, depending on the size of the anodes, which depends on the technology envisaged.
- the quantity in kg of powder required is typically between 40% and 120% of the carbon weight of the spent anode and preferably between 70% and 10% of the carbon weight of the spent anode.
- Each reservoir 9 has substantially the shape of a rectangular parallelepiped. It has, on its upper face, an opening 10 through which the powder 5 can be introduced into said reservoir 9.
- the entire upper face of the reservoir 9 is open.
- this upper face is covered with a lid (not shown) to prevent the dispersion of powder during the displacement of the support 1.
- the upper face of the reservoir 9 could have a reduced opening adapted to a powder supply device, which would prevent the dispersion of the powder 5 when filling the tanks 9.
- Each tank 9 also has, on its inside face 11 facing inwardly of the support 1, an orifice 12 for discharging the powder 5 onto the plate 6.
- an orifice 12 for discharging the powder 5 onto the plate 6.
- substantially the entire length of each reservoir 9 has a discharge opening 12 of the powder 5.
- the inner face 1 1 of the reservoir 9 comprises several (here four) orifices 12 adjacent separated by a wall 13 very narrow to maximize the powder outlet surface while ensuring the mechanical strength of the reservoir 9.
- Each discharge orifice 12 extends, in a vertical direction, from the tray 6 to a height above the anode when it is present on the tray 6, so that the spilled powder 5 can come cover the used anode 2 by limiting the flight of dust.
- Each discharge orifice 12 has a closure wall 14 which occupies a closed position when the powder 5 is introduced into the reservoir 9 through the opening 10. Then, when an anode 2 is placed on the support 1, the wall 1 shutter 14 is moved to an open position to allow the discharge of the powder 5 contained in the reservoir 9.
- the opening speed of the closure wall is advantageously controlled so as to minimize the flight of dust.
- the support 1 may be equipped with a temperature sensor (not shown) or any other optical detection means for example that can detect the presence of an anode 2 when it is very hot, and which controls a device for opening the closure wall 14.
- the tanks 9 are pre-filled by means of a device 20a, 20b for supplying powder to the support 1. According to a first possible embodiment, illustrated in FIG. 7, the tanks 9 are pre-filled in a workshop separate from the hall where the electrolysis cells are located, by means of a dedicated dedicated powder supplying device.
- a new anode 31 can be placed on the support 1 and the reservoirs 9 can be filled. Then the support 1 carrying the new anode 31 is brought near a cell comprising a used anode which must be replaced. It is then possible to place the new anode 31 in said cell and to place the used anode 2 on the support 1. The tanks 9 are then quickly opened so that the powder 5 they contain flows around and on the used anode 2.
- the powder supply device 20a may comprise a hopper 17, possibly displaced on a crane 18, and provided with a pipe 19 for discharging the powder 5, as illustrated on the left side of FIG. FIG. 7.
- the device 20b for supplying powder may comprise a vehicle 32 carrying a powder container 33 equipped with a lance 34 making it possible to fill the reservoirs 9, as illustrated on the right part of FIG. 7.
- the tanks 9 make it possible on the one hand to achieve a rapid discharge of the powder 5 since the latter is already present on site and does not need to be brought to the support 1. Thus, the emission of fluorinated gases can be effectively limited.
- these tanks 9 form containment means that significantly limit the dispersion of the powder 5. In fact, the powder 5 slides along the inner walls and the bottom wall of the tank 9 being guided.
- the tanks 9 comprise a bottom wall 15 inclined downwards towards the interior of the support 1, as seen in FIG.
- baffles 16, pipes or the like can be provided inside the tank 9, forming means for distributing the powder 5, as illustrated in FIG. This feature facilitates the subsequent flow of the powder 5 towards the sides of the anode 2.
- the support may also include separators 30 for separating or delimiting the cells and limiting the volume of the cells. For reasons of visibility and clarity, only two separators 30 have been shown in FIG. 4. These separators 30 contribute to the confinement of the powder in the cells and can also serve as powder reservoirs 9.
- Figure 8 illustrates a second embodiment of the invention.
- the support 1 is similar to that shown in FIGS. 4 to 7 but is here devoid of reservoirs 9.
- the device 20c supplying powder to the support 1 comprises a hopper 35 moved on a traveling crane 36 and provided with a conduit 37 for discharging the powder 5.
- the conduit 37 is extended at its lower part by a cap 21 which has substantially the shape of a bell open downward.
- the cap 21 has dimensions adapted to be able to come to cap the worn anode 2 and the rod 3 and form with the support 1 a containment volume 22 for the powder 5 discharged from the hopper 35.
- the powder 5 can be poured very rapidly onto the anode 2 - and thus considerably limit the emissions of fluorinated gases - without having to suffer the disadvantages associated with a large dispersion of the powder 5.
- the device 20c for supplying powder may comprise a suction duct 23 in communication with said confinement volume 22, so as to create a slight depression in said confinement volume 22.
- the support 1 is in accordance with that shown in FIGS. 4 to 7, that is to say that it is, moreover, equipped with reservoirs 9.
- An important point of the invention is that the powder is discharged very quickly (in less than 5 minutes, and preferably in less than a minute) by mechanical means and then optionally distributed manually by an operator on the anode.
- we try to limit human interventions on the one hand because they take time.
- long handling operations by an operator would represent risks because the operator would be in contact with the fluorinated gases and the powder itself. With the invention, this is limited since the emissions of fluorinated gases are very quickly stopped and since, thanks to the tanks and / or the bell, there is very little flight of powder. The invention therefore considerably reduces the risks for the operator.
- the invention provides a decisive improvement to the prior art, by providing a method, a support and a system for the temporary storage of a spent anode that effectively limit the emissions of fluorinated gases. Tests were carried out by measuring, during the 24 hours following the withdrawal of the anode from the tank, under a hood encompassing the entire anode and the support receiving the anode, the amount of gaseous fluoride emitted into the atmosphere by the spent anode per ton of aluminum produced.
- the invention also allows a better carbon management because it allows a rapid stop of the combustion of the spent anode which is extracted from the electrolysis bath by preventing the contact of the anode with the ambient air, thus preserving a quantity maximum amount of healthy carbon. Also, an additional advantage of the invention lies in maximizing the amount of carbon that can be reprocessed, recycled and ultimately reused for the manufacture of a carbon anode.
- An important aspect of the invention is that the smothering powder which ensures confinement of the spent anode and attached pieces of blanket is widely available in a primary aluminum production unit.
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080054647.2A CN102639755B (zh) | 2009-12-02 | 2010-10-19 | 更换废旧阳极的方法和临时储存废旧阳极的支撑件和系统 |
RU2012127342/02A RU2012127342A (ru) | 2009-12-02 | 2010-10-19 | Способ замены отработанного анода и держатель, и система для временного хранения такого отработанного анода |
CA2779855A CA2779855A1 (fr) | 2009-12-02 | 2010-10-19 | Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee |
EP10781940.1A EP2507413B1 (fr) | 2009-12-02 | 2010-10-19 | Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee |
AU2010326446A AU2010326446B2 (en) | 2009-12-02 | 2010-10-19 | Process for changing a spent anode and support and system for the temporary storage of such a spent anode |
BR112012013189A BR112012013189A2 (pt) | 2009-12-02 | 2010-10-19 | processo de troca de um anodo gasto e suporte e sistema para a estocagem temporária de um tal anodo gasto |
US13/513,483 US8808526B2 (en) | 2009-12-02 | 2010-10-19 | Process for changing a spent anode |
NZ600444A NZ600444A (en) | 2009-12-02 | 2010-10-19 | Process for changing a spent anode and support and system for the temporary storage of such a spent anode |
ZA2012/03198A ZA201203198B (en) | 2009-12-02 | 2012-05-03 | Process for changing a spent anode amd support and system for the temporary storage of such a spent anode |
DKPA201270354A DK201270354A (en) | 2009-12-02 | 2012-06-25 | Process for changing a spent anode and support and system for the temporary storage of such a spent anode |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0905813A FR2953223B1 (fr) | 2009-12-02 | 2009-12-02 | Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee |
FR0905813 | 2009-12-02 |
Publications (1)
Publication Number | Publication Date |
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WO2011067477A1 true WO2011067477A1 (fr) | 2011-06-09 |
Family
ID=41719243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/000691 WO2011067477A1 (fr) | 2009-12-02 | 2010-10-19 | Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee |
Country Status (14)
Country | Link |
---|---|
US (1) | US8808526B2 (fr) |
EP (1) | EP2507413B1 (fr) |
CN (1) | CN102639755B (fr) |
AR (1) | AR079204A1 (fr) |
AU (1) | AU2010326446B2 (fr) |
BR (1) | BR112012013189A2 (fr) |
CA (1) | CA2779855A1 (fr) |
DK (1) | DK201270354A (fr) |
FR (1) | FR2953223B1 (fr) |
MY (1) | MY160865A (fr) |
NZ (1) | NZ600444A (fr) |
RU (1) | RU2012127342A (fr) |
WO (1) | WO2011067477A1 (fr) |
ZA (1) | ZA201203198B (fr) |
Cited By (1)
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WO2016103020A1 (fr) * | 2014-12-23 | 2016-06-30 | Rio Tinto Alcan International Limited | Systeme de confinement pour un ensemble anodique |
Families Citing this family (8)
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FR2953223B1 (fr) * | 2009-12-02 | 2012-01-27 | Alcan Int Ltd | Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee |
FR3012389B1 (fr) | 2013-10-25 | 2015-10-30 | Rio Tinto Alcan Int Ltd | Systeme de gestion de flux logistiques d'une usine d'electrolyse, aluminerie comprenant ce systeme, vehicule pour la mise en oeuvre de ce systeme et procede d'implantation de ce systeme dans une usine d'electrolyse |
FR3016891B1 (fr) * | 2014-01-27 | 2017-08-04 | Rio Tinto Alcan Int Ltd | Dispositif de stockage d'une charge au-dessus d'une cuve d'electrolyse. |
FR3016890B1 (fr) * | 2014-01-27 | 2016-01-15 | Rio Tinto Alcan Int Ltd | Systeme de capotage pour cuve d'electrolyse |
CN107385473B (zh) * | 2017-08-22 | 2023-05-23 | 新乡市百分百机电有限公司 | 一种熔盐电解系统阳极输送车 |
CN109423662A (zh) * | 2017-08-28 | 2019-03-05 | 沈阳铝镁设计研究院有限公司 | 铝电解残极炭块的冷却和收集废气的装置及使用方法 |
NO20181483A1 (en) * | 2018-11-20 | 2020-05-21 | Norsk Hydro As | A method and equipment for storing and transporting hot gas emitting components |
FR3122777B1 (fr) * | 2021-05-06 | 2023-03-31 | Reel Alesa | Dispositif de confinement d’un ensemble anodique |
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IS3896A (is) * | 1991-08-07 | 1993-02-08 | Comalco Aluminium Limited | Hreinsun á loftkenndum flúoríðum úr útblæstri iðjuvera |
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US6767444B1 (en) * | 2002-08-26 | 2004-07-27 | The United States Of America As Represented By The United States Department Of Energy | Method for processing spent (TRU, Zr)N fuel |
US7001497B2 (en) * | 2003-04-25 | 2006-02-21 | Alcoa,Inc. | Process and apparatus for positioning replacement anodes in electrolytic cells |
FR2953223B1 (fr) * | 2009-12-02 | 2012-01-27 | Alcan Int Ltd | Procede de changement d'une anode usee et support et systeme pour le stockage temporaire d'une telle anode usee |
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2009
- 2009-12-02 FR FR0905813A patent/FR2953223B1/fr not_active Expired - Fee Related
-
2010
- 2010-10-19 RU RU2012127342/02A patent/RU2012127342A/ru not_active Application Discontinuation
- 2010-10-19 MY MYPI2012002433A patent/MY160865A/en unknown
- 2010-10-19 EP EP10781940.1A patent/EP2507413B1/fr not_active Not-in-force
- 2010-10-19 CN CN201080054647.2A patent/CN102639755B/zh not_active Expired - Fee Related
- 2010-10-19 US US13/513,483 patent/US8808526B2/en not_active Expired - Fee Related
- 2010-10-19 WO PCT/FR2010/000691 patent/WO2011067477A1/fr active Application Filing
- 2010-10-19 CA CA2779855A patent/CA2779855A1/fr not_active Abandoned
- 2010-10-19 BR BR112012013189A patent/BR112012013189A2/pt not_active IP Right Cessation
- 2010-10-19 AU AU2010326446A patent/AU2010326446B2/en not_active Ceased
- 2010-10-19 NZ NZ600444A patent/NZ600444A/en not_active IP Right Cessation
- 2010-11-26 AR ARP100104378A patent/AR079204A1/es unknown
-
2012
- 2012-05-03 ZA ZA2012/03198A patent/ZA201203198B/en unknown
- 2012-06-25 DK DKPA201270354A patent/DK201270354A/da not_active Application Discontinuation
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DE4221882A1 (de) | 1992-07-03 | 1994-01-05 | Westfalia Becorit Ind Tech | Transportvorrichtung für heiße Restanoden |
FR2754832A1 (fr) | 1996-10-23 | 1998-04-24 | Pechiney Aluminium | Procede de changement d'anodes usees de cuves d'electrolyse de l'aluminium et dispositif de captage des effluents gazeux permettant de le mettre en oeuvre |
US5961812A (en) | 1996-10-23 | 1999-10-05 | Aluminium Pechiney | Process and gaseous effluent-collection device for changing spent anodes of pots for electrolysis of aluminum |
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WO2003042618A1 (fr) | 2001-11-14 | 2003-05-22 | Norsk Hydro Asa | Procede permettant de faire fonctionner un systeme de cellules a l'electrolyse pre-cuites et dispositif destine a etre utilise dan ce systeme |
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Cited By (1)
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WO2016103020A1 (fr) * | 2014-12-23 | 2016-06-30 | Rio Tinto Alcan International Limited | Systeme de confinement pour un ensemble anodique |
Also Published As
Publication number | Publication date |
---|---|
FR2953223A1 (fr) | 2011-06-03 |
US20120246923A1 (en) | 2012-10-04 |
CN102639755B (zh) | 2015-09-30 |
AU2010326446A1 (en) | 2012-05-31 |
AU2010326446B2 (en) | 2014-03-27 |
AR079204A1 (es) | 2012-01-04 |
EP2507413A1 (fr) | 2012-10-10 |
CA2779855A1 (fr) | 2011-06-09 |
US8808526B2 (en) | 2014-08-19 |
BR112012013189A2 (pt) | 2016-03-01 |
ZA201203198B (en) | 2013-07-31 |
RU2012127342A (ru) | 2014-01-10 |
CN102639755A (zh) | 2012-08-15 |
DK201270354A (en) | 2012-06-25 |
NZ600444A (en) | 2014-07-25 |
FR2953223B1 (fr) | 2012-01-27 |
EP2507413B1 (fr) | 2014-04-16 |
MY160865A (en) | 2017-03-31 |
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