WO2012100340A1 - Anode et connecteur pour une cellule industrielle de hall-héroult - Google Patents

Anode et connecteur pour une cellule industrielle de hall-héroult Download PDF

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Publication number
WO2012100340A1
WO2012100340A1 PCT/CA2012/000084 CA2012000084W WO2012100340A1 WO 2012100340 A1 WO2012100340 A1 WO 2012100340A1 CA 2012000084 W CA2012000084 W CA 2012000084W WO 2012100340 A1 WO2012100340 A1 WO 2012100340A1
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WO
WIPO (PCT)
Prior art keywords
anode
connector
groove
longitudinal
longitudinal bar
Prior art date
Application number
PCT/CA2012/000084
Other languages
English (en)
Inventor
Mario FAFARD
Olivier TREMPE
Patrice GOULET
Dave Martin
Original Assignee
UNIVERSITé LAVAL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UNIVERSITé LAVAL filed Critical UNIVERSITé LAVAL
Publication of WO2012100340A1 publication Critical patent/WO2012100340A1/fr

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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
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes
    • C25C3/125—Anodes based on carbon
    • 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

Definitions

  • the present invention relates to the field of aluminum production, and more particularly concerns an anode and its connector for use in an electrolysis industrial cell in a Hall-Heroult process.
  • the present invention further relates to a method for connecting the anode to its connector.
  • Soderberg There are two primary anode technologies in the Hall-Heroult process: Soderberg and prebaked anodes.
  • Soderberg technology uses a continuously created anode made by addition of paste on top of the anode while prebaked technology is named after its anodes, which are baked beforehand in very large anode baking furnaces at high temperature, before being rodded to an electrical connector and lowered into the electrolytic solution.
  • Those anodes are consumed due to the oxidation reaction during the electrolysis process.
  • the anodes become thinner and must be replaced after approximately 26 days.
  • At the end of the lifetime of the anode there remains a non-consumed part named butt. This non-consumed part of the anode is not usable to produce aluminum.
  • butts are cleaned and crushed before being reused to fabricate new anodes.
  • FIG. 1B a prior art connector 0 and its anode 12 as currently used in the Hall-Heroult process are shown. Electrical current from a bus bar (not shown) is transmitted to the anode 12 using an aluminum rod clamped to the bus bar. The aluminum rod is affixed to a steel yoke 14 using a bimetallic joint. Two to six stubs 16 (three are shown in Figures 1A and 1 B) extend from the yoke 14 and are inserted within stub holes in the anode 12. Stubs are also known in the art as "studs". The stub holes include flutes 18 allowing the current to be transmitted from the bus bar to the anode 12, while supporting the anode 12 at the same time. Cast iron 20 is used to fill in the space between the stubs 16 and the stub holes in order to seal the stubs within the anode 12.
  • US patent 4,612,105 (LANGON) describes another configuration of an anode and steel conductor connection.
  • the anode and steel conductor described in this patent aims at reducing the contact resistance of the connection to avoid a voltage drop in the anodic system.
  • the electrical resistivity at the anode interface is function of the pressure and temperature at the interface 1 .
  • the degradation of the steel stubs during the aluminum electrolysis has also an effect on energy losses at the steel, cast iron, and carbon interfaces, while the tensile cracking of the anode depends on relative thermal expansion of steel, cast iron and carbon.
  • R Electrical surface resistance at the interface in Ohms * m 2
  • TSOMAEV describes a carbon electrode and a head for suspending the electrode and for supplying electricity to the electrode.
  • the head must be slid into the electrode's groove from one of the end walls of the anode.
  • the head is locked in place by inserting wedge-shaped fixing pins underneath the connector, the fixing pins being made from a material that burns.
  • One of the objectives aimed by TSOMAEV is to eliminate the use of cast iron from the head-electrode connection, in order to facilitate the reuse of the head once the electrode has been consumed.
  • NATERSTAD describes an inert anode top under which a carbon core is glued and aims at reducing carbon losses.
  • the anode top is provided with a groove for receiving studs from a connector, the studs being attached to a yoke and having a shape complementary to the shape of the groove.
  • the studs of the connector must also be slid into the electrode's groove from one of the end walls of the anode and locked in position therein using a wedge.
  • NATERSTAD nor TSOMAEV makes use of cast iron, or any other type of conductive material, for attaching the connector to the anode.
  • TMS Light Metals pages 865-873, 2007 and TSOMAEV describe an insertion of the connector into the anode by sliding the connector from one side of the anode, the connector being fixed therein thanks to the complementary shape of the connector and groove of the anode.
  • An object of the present invention is to provide a combination of a connector and an anode addressing the above-mentioned need.
  • a combination of a connector and an anode for use in a Hall-Heroult industrial cell for producing aluminum comprises a yokeless connector made of a conductive material for transmitting electrical current to the anode.
  • the connector has an inverted T-shape and comprises a vertical bar for receiving the electrical current, and a longitudinal bar connected to the said vertical bar.
  • the combination also comprises an anode having a longitudinal top surface, and a groove extending longitudinally along the top surface. The groove is sized and shaped to receive the longitudinal bar of the connector.
  • the combination still comprises a pourable conductive material for filling the groove and bonding the longitudinal bar of the connector to the anode.
  • the pourable conductive material may be cast iron.
  • the groove may open solely at the longitudinal top surface of the anode.
  • the groove may have a width larger than the width of the longitudinal bar so as to enable insertion of the connector from the top surface of the anode.
  • the groove may open at both top and opposed side surfaces of the anode.
  • the anode may therefore comprise a refractory material for filling two opposed end portions of the groove, each of the two opposed end portions being located between one end of the longitudinal bar of the connector and the corresponding opposed side surface of the anode.
  • the connector may comprise a pair of inclined bars, each inclined bar of the pair extending outwardly from one side of the vertical bar towards the longitudinal bar of the connector for connecting the vertical bar to the longitudinal bar.
  • the vertical bar may be centrally connected to the longitudinal bar of the connector.
  • the combination may comprise a bottom space between the longitudinal bar and a bottom wall of the groove, the pourable conductive material filling said bottom space.
  • the combination may also comprise side spaces between the longitudinal bar and longitudinal side walls of the groove, the pourable conductive material filling said side spaces.
  • the longitudinal bar may have a rectangular cross-section, a flared cross-section or an ovoid cross-section.
  • the longitudinal bar may have a circular cross-section.
  • the groove and the longitudinal bar of the connector may have cross-sections of same shape, the cross-section of the groove being larger than the cross-section of the longitudinal bar.
  • the groove may have a flared cross-section which is narrower near the longitudinal top surface of the anode.
  • the conductive material of the connector may be a metallic material, such as steel.
  • the connector may be made as a one-piece structure.
  • the longitudinal bar of the connector may extend along almost an entire length of the longitudinal top surface of the anode for fitting in the corresponding groove.
  • the longitudinal bar may be completely recessed into the groove.
  • a method for connecting a connector to an anode suitable for use in a Hall-Heroult industrial cell comprises providing a yokeless connector made of a conductive material for transmitting electrical current to an anode.
  • the yokeless connector comprises a vertical bar and a longitudinal bar arranged in an inverted T-shape.
  • the method also comprises providing the anode comprising a groove sized and shaped to receive the longitudinal bar of the connector, the anode having a longitudinal top surface, and the groove extending along the longitudinal top surface and being opened solely at the top surface of the anode.
  • the method still comprises inserting the longitudinal bar of the connector into the groove, from the longitudinal top surface of the anode.
  • the method comprises pouring a pourable conductive material around the inserted longitudinal bar and into the groove for bonding the connector to the anode.
  • a method for connecting a connector to an anode suitable for use in a Hall-Heroult industrial cell comprises providing a yokeless connector made of a conductive material for transmitting electrical current to an anode.
  • the yokeless connector comprises a vertical bar and a longitudinal bar arranged in an inverted T-shape.
  • the method also comprises providing the anode comprising a groove sized and shaped to receive the longitudinal bar of the connector, the anode having a longitudinal top surface and opposed side surfaces, and the groove extending along the longitudinal top surface of the anode towards the opposed side surfaces.
  • the method still comprises inserting the longitudinal bar of the connector into the groove, from either the longitudinal top surface of the anode or from one of the opposed side surfaces.
  • the method then comprises filling two opposed portions of the groove with refractory materials, each of the two opposed portions being located between one end of the inserted longitudinal bar of the connector and the corresponding opposed side surface of the anode.
  • the method comprises pouring a pourable conductive material around the inserted longitudinal bar and into the groove for bonding the connector to the anode.
  • the pourable conductive material is cast iron.
  • the combination of the connector and the anode of the invention reduces energy losses at the interfaces of the connector and the anode due to a better current distribution.
  • the connector since the connector is yokeless and stubless, in some cases the height, and thus the operational life of the anode can be increased. This in turn reduces aluminum manufacturing costs since it reduces inherent costs due to the anode replacement. Energy perturbations are also reduced due to the increase of the time interval between anode replacements.
  • the pressure at the interfaces of the connector is more evenly distributed compared to prior art stubs connectors, also contributing to a more uniform current distribution.
  • Figure 1A is a perspective view of a prior art anode and its connector
  • Figure 1 B is a perspective view of the connector illustrated in Figure 1A;
  • Figure 2A is a top perspective view of a combination anode-connector, according to one embodiment of the present invention.
  • Figure 2B is a top perspective view of a combination anode-connector, according to another embodiment of the present invention.
  • Figure 3A is a semi-transparent schematic view of a prior art anode and its connector in an electrolytic cell;
  • Figure 3B is a semi-transparent schematic view of a combination anode- connector according to one embodiment of the present invention.
  • Figures 4A to 4F are cross-sectional views along line IV of Figure 2A of combinations anode-connectors having various cross-sectional shapes.
  • Figures 5A to 5C represents three different schemes of a longitudinal section of a combination anode-connector according to three embodiments of the present invention. DESCRIPTION OF PREFERRED EMBODIMENTS
  • the present invention aims at solving problems of energy losses at the connector/carbon anode interface with a yokeless and stubless anode connector.
  • the connector is insertable from above the anode or from one of the sides of the anode.
  • the connector is inserted from above the anode.
  • the yokeless and stubless configuration also enables to increase the height of the anode if needed.
  • a pourable conductive material is used for bonding the connector to the anode and ensuring an even distribution of the electrical current from the connector to the anode.
  • the bonding refers to a mechanical bonding, that is, any physical interaction enabling fixation, attachment, anchoring or sealing of the connector to the anode without changing the chemical structure of the connector and/or anode.
  • cast iron is used as a conductive and pourable material.
  • the pourable conductive material such as cast iron, is required in order to be able to reuse the connector, even when the size of the longitudinal bar of the proposed connector is reduced due to corrosion, generally occurring after being in service for a given period of time.
  • the anode is preferably made as a one-piece structure and has dimensions allowing a use in common known electrolytic cells, such as Hall-Heroult cells.
  • FIG. 2A a combination of an anode 24 and a connector 22 for use in a Hall-Heroult industrial cell is illustrated.
  • the combination comprises the anode 24, the connector 22 and the conductive pourable material 20, such as cast iron.
  • the conductive pourable material acts as a seal, and fills the groove 32 between the anode 24 and the connector 22.
  • the anode 24, made of carbon has a longitudinal top surface 25 and a groove 32 which extends longitudinally along the longitudinal top surface 25.
  • the groove 32 may open solely on the longitudinal top surface 25, that is, it does not open at the end walls, also referred herein as side surfaces 27 of the anode.
  • This configuration of the groove 32 also has the advantage of preventing pourable conductive material 20 leakage from the end walls 27 of the anode when poured around the connector 22 to seal it.
  • the groove 32 may also open on both the longitudinal top surface 25 and side surfaces 27 of the anode.
  • the connector 22 is made of a conductive material, in order to transmit the electrical current to the anode 24, required for the electrolysis process.
  • the connector 22 has an inverted T-shape made of a vertical bar 30 which receives the electrical current from an aluminum rod (not shown) and a longitudinal bar 26 connected to the vertical bar 30.
  • the longitudinal bar 26 extends into the groove of the anode. When inserted in the groove 32, the longitudinal bar 26 extends almost over the entire length of the anode. Having the longitudinal bar 26 extending on almost the entire length of the anode allows to better distribute the electrical current within the anode, and especially towards both sides 27 of the anode.
  • the pourable conductive material 20 fills the groove 32 and seals the longitudinal bar 26 of the connector 22 to the anode 24.
  • a closure 29 made of refractory material fills the groove 32 from ends of the longitudinal bar 26 unto the side surfaces 27 of the anode. Furthermore, this refractory material protects the ends of the longitudinal bar 26 against dissolution in the electrolytic solution.
  • the vertical bar 30 is shown centered relative to the longitudinal bar 26, in another embodiment the vertical bar could be offset from the center of the longitudinal bar as shown in Figure 5C. Preferably, the vertical bar is centered to fit into conventional electrolytic cells.
  • the connector 22 because of its yokeless inversed T-bar configuration, provides the advantage of increasing the height of the anode 24, as shown in Figures 3A and 3B.
  • the connector 22 does not have a yoke, the height h gained allows the use of thicker anodes (i.e. with an increased height) and the anode replacement cycle, which is generally around 26 days, can be increased.
  • Having a yokeless connector thus leads to a reduction of the costs that are inherent to an anode replacement, that is, costs due to the workforce required to replace the anode.
  • Increasing the height of the anode also helps reducing the energy-related perturbations in electrolytic cells, since the time interval between anode replacements is increased.
  • the height increase of the anode may still be limited by the type of cell which is used.
  • the replacement cycle of the connector-anode combination of the invention could increase by nearly 50% the replacement time.
  • Increasing the replacement cycle length of the anode can also contribute to reducing GHG (Green House Gases).
  • two inclined bars, or stringers 28 connect the longitudinal bar 26 with the vertical bar 30 of the, connector 22.
  • This "trident" configuration provides the advantage of further distributing the current flow from the aluminum anode rod bar to the anode 24 and obtaining a better mechanical behavior of the connector 22 during the pourable conductive material 20 bonding operation and during the use of the combination inside the cell. Indeed, the current flowing through the inclined bars 28 reaches the extremities of the longitudinal bar 26, which in turn reaches extremities of the anode, which results in the current being distributed more evenly in the anode.
  • the connector is made of a conductive material, preferably a metallic material, such as steel.
  • the longitudinal, inclined and vertical bars may preferably be formed as a one-piece structure, i.e. without any welding between the vertical, inclined and longitudinal bar. Of course, other metals for the connector can be used or other methods to assembly the longitudinal, inclined and vertical bars can be also used.
  • the vertical bar is preferably provided with a bi-metallic joint for linking the connector to the aluminum rod as commonly used in the aluminum electrolysis process. Another advantage of the connector and the groove is the reduction of the carbon required for anode manufacturing and thus a reduction in the energy used for baking the anode. Carbon waste management (butts) is also reduced, with an overall reduction of GHG emissions.
  • the carbon between the stubs is not used to produce aluminum being a part of the butt. While using the connector and groove according to the present invention, a reduction of up to 5% in terms of the volume of carbon is obtained, when compared to a 3-stub prior art connector.
  • the connector 22 may have a rectangular cross- sectional shape, but it can also take different cross-sectional shapes, such as flared, circular or ovoid cross-sectional shapes.
  • the groove 32 can also take different cross-sectional shapes, including a trapezoidal cross-section.
  • the connector 22 may have a circular cross-sectional shape (as shown on Figure 4B) for providing a more even current distribution at the interface of the connector and the pourable conductive material, such as cast iron.
  • the groove 32 preferably has a flared shape, narrower near the top of the anode. This particular configuration provides a better structural joint of the connector 22 with the anode 24, once the pourable conductive material 20 has solidified and shrunk within the groove 32 of the anode 24.
  • the groove 32 has preferably rounded corners for smoothing the rough edges and avoid weakening and/or cracking of the anode.
  • the variants shown in Figures 4B, 4C, 4E and 4F also help in reducing peaks of pressure at specific points of the surface of the connector 22, further improving the current distribution at the interface of the connector and the anode.
  • the width W ba r of the longitudinal bar 26 is slightly smaller than the width of the narrowest section of the trapezoidal section (i.e. the width of the top portion of the groove 32, W gro ove)-
  • the width of the narrowest section of the trapezoidal section i.e. the width of the top portion of the groove 32, W gro ove
  • the thickness of the pourable conductive material 20 in the upper section is thinner than the thickness in the lower section.
  • the shrinkage of the pourable conductive material 20 will be more important in the lower section of the groove 32 than in the upper section. This will in turn lead to a contact pressure higher in the upper section of the groove 32, helping the current 34 to flow towards the top of the anode 24.
  • steel is more conductive than the carbon of the anode, the current generally tends to flow towards the bottom of the steel bar.
  • the contact resistivity in this region is decreased, leading to a more uniformly distributed current density on the highest portion of the longitudinal bar 26.
  • the groove 32 and the longitudinal bar 26 can have same cross-sections, the cross-section of the groove being larger than the cross-section of the longitudinal bar 26.
  • the connector is combined to the anode, there is a bottom space between the longitudinal bar and the bottom wall of the groove, and pourable conductive material 20 may or may not fill this bottom space.
  • pourable conductive material 20 may or may not fill this bottom space.
  • the pourable conductive material 20 also preferably filling these side spaces too.
  • the longitudinal bar 26 can be completely recessed into the groove 32.
  • the pourable conductive material 20 will entrap the connector 22 in the anode 24, and thus the anode 24 will be supported by the connector 22.
  • the longitudinal bar 26 preferably extends on almost the entire length of the anode 24, the support (or contact) surface is increased compared to prior art stub connectors. This larger contact area leads to a reduction of energy losses. An increase of 40% of the contact surface is expected with the combination of the present invention in comparison with known combinations.
  • the internal lower edges of the groove are preferably rounded so as to avoid any crack in the anode.
  • Figures 5A to 5C are longitudinal cross-sections of three variants of a connector-anode combination according to the present invention.
  • the current and pressure distribution, along with energy losses have been simulated in comparison with known connector-anode combination.
  • the results have shown that at the interface of the anode and the connector, energy losses are less than those of known combinations, and the pressure at the anode- connector interface is more evenly distributed.
  • the objective of known combination is often to eliminate the cast iron but the present invention aims at using a pourable conductive material, such as cast iron, to enhance the reduction of energy consumption and allows the re-use of the new connector even though the shape of the bar becomes irregular due to corrosion.
  • the present invention also enables to thicken the anode.
  • the present combination anode-connector may preferably be protected against corrosion with a groove with closed ends and possibly ramming paste (made of a blend of pitch, light oil diluent and an aggregate comprising a mixture of anthracite and calcined coke) on the top.
  • the new connector of the present invention is also advantageously re-usable.
  • the vertical bar 30 may not be centered on the longitudinal bar 26 for fitting specific size and geometry requirements of various electrolytic cells.
  • a method for combining the connector to the anode may comprise the following steps of: a) providing a yokeless connector and an anode as described above; b) inserting the longitudinal bar of the connector into the groove; and c) pouring a pourable conductive material, such as cast iron, over and around the inserted longitudinal bar, into the groove. More particularly, the insertion of the longitudinal bar of the connector into the groove may be done from the longitudinal top surface or from one of the side surfaces of the anode. Preferably, the insertion is done from the longitudinal top surface of the anode.
  • the method may comprise an additional step of filling two opposed portions of the groove with refractory materials before pouring the pourable conductive material, such as cast iron.
  • the two opposed portions 29 being located between one end of the inserted longitudinal bar 26 of the connector 22 and the corresponding opposed side surface 27 of the anode 24 as better seen in Figure 2B.
  • an insertion of the connector from one of the sides of the anode requires that the groove extends along the longitudinal top surface of the anode unto the side surfaces of the anode, thereby creating a corresponding opening on the side surfaces.
  • the method thus further comprises filling each of the two portions of the groove with a refractory material to create a closure (29, Figure 2B) between the ends of the longitudinal bar of the connector and the end walls (also referred as side surfaces 27 of the anode, Figure 2B) of the anode.
  • the pouring of the conductive material such as cast iron, may then be performed to bond the connector to the anode.
  • the combination and the method of combining the connector and the anode as described in the present application advantageously allow a more uniform current distribution at the anode/ pourable conductive material/connector interfaces which translates into a reduction of energy losses and thus a more efficient electrolysis process.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

La présente invention se rapporte à une combinaison d'une anode et de son connecteur destinée à être utilisée dans une cellule industrielle d'électrolyse dans un procédé Hall-Héroult. La combinaison du connecteur et de l'anode comprend un connecteur sans bride constitué d'un matériau conducteur destiné à transmettre un courant électrique à l'anode, le connecteur ayant une forme de T inversé, ainsi qu'une anode qui comprend une rainure s'étendant longitudinalement le long de la surface supérieure de l'anode et qui est dimensionnée et formée pour recevoir une barre longitudinale du connecteur. La combinaison comprend également un matériau conducteur qui peut être versé, destiné à remplir la rainure et à relier la barre longitudinale du connecteur à l'anode. La présente invention se rapporte également à un procédé permettant de raccorder le connecteur à l'anode.
PCT/CA2012/000084 2011-01-28 2012-01-27 Anode et connecteur pour une cellule industrielle de hall-héroult WO2012100340A1 (fr)

Applications Claiming Priority (2)

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US201161437201P 2011-01-28 2011-01-28
US61/437,201 2011-01-28

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WO2012100340A1 true WO2012100340A1 (fr) 2012-08-02

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015110906A1 (fr) * 2014-01-27 2015-07-30 Rio Tinto Alcan International Limited Ensemble anodique et procede de fabrication associe
WO2016001741A1 (fr) * 2014-07-04 2016-01-07 Rio Tinto Alcan International Limited Ensemble anodique
WO2016141475A1 (fr) * 2015-03-08 2016-09-15 Université Du Québec À Chicoutimi Ensemble anode pour cellules d'électrolyse d'aluminium et procédé de fabrication d'ensembles anode
CN110560673A (zh) * 2019-10-17 2019-12-13 陈雨 一种电解铝阳极生产用气压浇注装置
FR3090699A1 (fr) 2018-12-20 2020-06-26 Rio Tinto Alcan International Limited Ensemble anodique et procédé de fabrication associé
EP3516094A4 (fr) * 2016-09-19 2020-07-15 Elysis Limited Partnership Appareil à anode et procédés associés

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GB2159538A (en) * 1984-05-29 1985-12-04 Pechiney Aluminium A carbonaceous anode with partially constricted round bars designed for cells for the production of aluminium by electrolysis
US4574019A (en) * 1984-01-18 1986-03-04 Swiss Aluminium Ltd. Process for attaching anode blocks to an anode suspension means
US4621674A (en) * 1983-01-31 1986-11-11 Swiss Aluminium Ltd. Means of anchorage of anode pins or stubs in a carbon anode
US5380416A (en) * 1993-12-02 1995-01-10 Reynolds Metals Company Aluminum reduction cell carbon anode power connector

Patent Citations (4)

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US4621674A (en) * 1983-01-31 1986-11-11 Swiss Aluminium Ltd. Means of anchorage of anode pins or stubs in a carbon anode
US4574019A (en) * 1984-01-18 1986-03-04 Swiss Aluminium Ltd. Process for attaching anode blocks to an anode suspension means
GB2159538A (en) * 1984-05-29 1985-12-04 Pechiney Aluminium A carbonaceous anode with partially constricted round bars designed for cells for the production of aluminium by electrolysis
US5380416A (en) * 1993-12-02 1995-01-10 Reynolds Metals Company Aluminum reduction cell carbon anode power connector

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3016897A1 (fr) * 2014-01-27 2015-07-31 Rio Tinto Alcan Int Ltd Ensemble anodique et procede de fabrication associe.
CN105934539A (zh) * 2014-01-27 2016-09-07 力拓艾尔坎国际有限公司 阳极组件以及相关的生产方法
WO2015110906A1 (fr) * 2014-01-27 2015-07-30 Rio Tinto Alcan International Limited Ensemble anodique et procede de fabrication associe
CN105934539B (zh) * 2014-01-27 2017-11-21 力拓艾尔坎国际有限公司 阳极组件以及相关的生产方法
DK179133B1 (en) * 2014-01-27 2017-11-27 Rio Tinto Alcan Int Ltd ANODE COLLECTION AND RELATED PROCEDURES FOR MANUFACTURING
EA030223B1 (ru) * 2014-01-27 2018-07-31 Рио Тинто Алкан Интернэшнл Лимитед Анодный узел и способ его изготовления
AU2015208860B2 (en) * 2014-01-27 2018-08-23 Rio Tinto Alcan International Limited Anode assembly and associated production method
US10480089B2 (en) 2014-01-27 2019-11-19 Rio Tinto Alcan International Limited Anode assembly and associated production method
EA037127B1 (ru) * 2014-07-04 2021-02-09 Рио Тинто Алкан Интернэшнл Лимитед Анодный узел
WO2016001741A1 (fr) * 2014-07-04 2016-01-07 Rio Tinto Alcan International Limited Ensemble anodique
US10443140B2 (en) 2014-07-04 2019-10-15 Rio Tinto Alcan International Limited Anode assembly
WO2016141475A1 (fr) * 2015-03-08 2016-09-15 Université Du Québec À Chicoutimi Ensemble anode pour cellules d'électrolyse d'aluminium et procédé de fabrication d'ensembles anode
US10920329B2 (en) 2015-03-08 2021-02-16 Université Du Québec À Chicoutimi Anode assembly for aluminum electrolysis cells and method for manufacturing anode assemblies
EP3516094A4 (fr) * 2016-09-19 2020-07-15 Elysis Limited Partnership Appareil à anode et procédés associés
FR3090699A1 (fr) 2018-12-20 2020-06-26 Rio Tinto Alcan International Limited Ensemble anodique et procédé de fabrication associé
CN113195792A (zh) * 2018-12-20 2021-07-30 力拓艾尔坎国际有限公司 阳极组件以及相关的制造方法
CN110560673A (zh) * 2019-10-17 2019-12-13 陈雨 一种电解铝阳极生产用气压浇注装置

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