EP1443128B1 - Bedienungsmaschine für Elektrolysezellen bei der Aluminiumproduktion - Google Patents

Bedienungsmaschine für Elektrolysezellen bei der Aluminiumproduktion Download PDF

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Publication number
EP1443128B1
EP1443128B1 EP03356013A EP03356013A EP1443128B1 EP 1443128 B1 EP1443128 B1 EP 1443128B1 EP 03356013 A EP03356013 A EP 03356013A EP 03356013 A EP03356013 A EP 03356013A EP 1443128 B1 EP1443128 B1 EP 1443128B1
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EP
European Patent Office
Prior art keywords
rotating
frame
fixed
connecting device
sleeve
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.)
Expired - Lifetime
Application number
EP03356013A
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English (en)
French (fr)
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EP1443128A1 (de
Inventor
Patrick Delescluse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fives ECL SAS
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ECL SAS
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 ECL SAS filed Critical ECL SAS
Priority to AT03356013T priority Critical patent/ATE299193T1/de
Priority to DE60300977T priority patent/DE60300977T2/de
Priority to EP03356013A priority patent/EP1443128B1/de
Priority to ARP040100126A priority patent/AR042735A1/es
Priority to BR0407135-2A priority patent/BRPI0407135A/pt
Priority to CNB2004800028800A priority patent/CN100485094C/zh
Priority to CA2512745A priority patent/CA2512745C/fr
Priority to PCT/FR2004/000189 priority patent/WO2004070086A2/fr
Priority to US10/539,116 priority patent/US20060060469A1/en
Publication of EP1443128A1 publication Critical patent/EP1443128A1/de
Application granted granted Critical
Publication of EP1443128B1 publication Critical patent/EP1443128B1/de
Priority to IS8000A priority patent/IS8000A/is
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
    • B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
    • B66C17/08—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for charging treatment chambers, e.g. furnaces, kilns, ovens
    • 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
    • C25C3/14—Devices for feeding or crust breaking

Definitions

  • the invention relates to the production of aluminum by igneous electrolysis according to Hall-Héroult process. It relates more particularly to service machines overhead crane used in said factories.
  • Aluminum metal is produced industrially by igneous electrolysis, ie by electrolysis of the alumina in solution in a bath of molten cryolite, called bath electrolyte, according to the well-known Hall-Héroult process.
  • the electrolyte bath is contained in tanks, called “electrolysis cells", comprising a box in steel, which is coated internally with refractory and / or insulating materials, and a cathodic assembly located at the bottom of the tank.
  • Anodes made of carbonaceous material are partially immersed in the electrolyte bath.
  • the whole formed by a tank electrolysis, its anodes and the electrolyte bath is called an electrolysis cell.
  • Plants contain a large number of electrolysis cells arranged in line, in buildings called halls or electrolysis rooms, and electrically connected in series using connecting conductors, so as to optimize ground occupancy factories.
  • the cells are generally arranged to form two or several parallel lines that are electrically interconnected by drivers end. The electrolysis current thus cascades from a cell to the next.
  • an electrolysis plant requires interventions on the cells electrolysis, including, in particular, the replacement of anodes new anodes, the removal of liquid metal from the cells and the samples or additions of electrolyte.
  • the factories more modern are equipped with one or more service units including a movable bridge that can be translated over the electrolysis cells, and along these, and a service module comprising a trolley and handling and intervention (often called “tools"), such as shovels and hoists, and able to be moved on the moving bridge.
  • tools often termed “electrolysis service machines” or “M.S.E” (“PTA” or “Pot Tending Assembly “or” PTM “or” Pot Tending Machine "in English).
  • the plaintiff has therefore sought service units which make it possible to avoid disadvantages while remaining reliable.
  • the subject of the invention is a device for mechanical and electrical connection rotating between a transport module, typically a trolley, and handling and intervention of an igneous electrolysis aluminum production plant, characterized in that it comprises a chassis called “fixed” provided with a hub or straight shaft, a sleeve surrounding the hub and able to rotate around it, a first and a second so-called “rotary” chassis able to turn around the sleeve, contacts sliding electric motors between chassis and drive systems for cause the chassis to rotate relative to one another about an axis common.
  • the two rotary frames and the sleeve of the connecting device of the invention are intended to rotate around a common axis of rotation, which is typically vertical in use, and independently of one another.
  • the rotation of the chassis and the sleeve is then called “coaxial".
  • the sleeve is rotated by the first rotary frame, typically via a mechanical means, such as a finger.
  • the connecting device according to the invention allows an angularly unlimited rotation between the three frames, while ensuring a permanent electrical connection between them.
  • the chassis rotation independence increases the comfort and efficiency of the operator.
  • FIG. 1 illustrates a typical electrolysis room, seen in section, intended for aluminum production and including a service unit represented in such a way schematic.
  • FIG. 2 schematically illustrates, in side view, a service module of an igneous electrolysis aluminum production plant according to the invention.
  • FIG. 3 illustrates a connection device according to the invention, seen in section.
  • Electrolysis plants for aluminum production include a liquid aluminum production area that includes one or more rooms electrolysis (1).
  • each electrolysis room (1) comprises electrolysis cells (2) and at least one "service unit” or “machine of "(3)
  • Electrolysis cells (2) are normally arranged in rows or queues (typically side-by-side or head-to-head), each row or file comprising typically more than a hundred cells.
  • Said cells (2) comprise a series of anodes (21) provided with a metal rod (22) for fixing and electrical connection of the anodes to a metal anode frame (not shown).
  • the service unit (3) is used to carry out operations on the cells (2) such as anode changes or the filling of ground feed hoppers and AlF 3 of the electrolysis cells. It can also be used to handle various loads, such as tank elements, pockets of liquid metal or anodes.
  • the service unit (3) comprises a movable bridge (4) which can be translated above electrolysis cells (2), and along them, and a service module (5) comprising a movable carriage (6) movable on the movable bridge (4) and several handling and intervention devices (7, 8, 9, 10, 11), such as tools (shovels, keys, biters, ...) and control cabins.
  • the movable bridge (4) rests and circulates on raceways (30, 30 ') arranged parallel to each other and to the main axis of the hall (and the queue of cells).
  • the moving bridge (4) can thus be moved along the electrolysis room (1).
  • the hub (102) is locked in rotation relative to the fixed frame (101).
  • the fixed frame (101) is typically above the rotary frames (110, 120).
  • the axis of rotation (103) is normally substantially vertical.
  • the first rotary frame (110) rotates with the sleeve (121) and drives it in rotation typically by mechanical means (123) such as a finger.
  • Said pluralities of rotating sliding electrical contacts (113, 114) comprise typically rings or tracks attached to the sleeve (121) and brooms or wipers attached to the frames (101, 120).
  • the number of sliding electrical contacts rotary is typically from a few tens to several tens. They allow in particular to transfer control signals and electrical power.
  • Said pluralities of electrical contacts (113, 114) are advantageously protected by a box (115, 116).
  • the frames (101, 110, 120) typically comprise openings for passing said outer conductors and distribution.
  • the outer conductors (117) are normally fixed relative to the fixed frame.
  • the distribution conductors (118, 1181, 1182, 119) are conductors electrical devices of the connecting device which are likely to be driven by the rotation of the rotary frames (110, 120).
  • Distribution drivers include a first series of conductors (118, 1181, 1182) which are normally fixed by relative to the sleeve (121) and to the first rotary frame (110), and a second series conductors (119) which are normally fixed relative to the second frame rotary (120).
  • the annular bearings (111, 112) are typically rolling bearings, such as roller crowns.
  • the connecting device (100) advantageously comprises one or more joining means for holding said frames (101, 110, 120) in a determined axial position.
  • These assembly means may be in whole or in part integrated in the annular bearings (111, 112).
  • Training systems (140, 141, 142, 150, 151, 152) include typically a motor (140, 150), a pinion (141, 151) and a ring gear (142) or a gear wheel (152).
  • the engine (140, 150) and the crown (142, 152) can be fixed respectively to the fixed frame (101) and to one of the rotary frames (110, 120), or vice versa.
  • the motor (140, 150) can be attached to the rotating frame or fixed by a mechanical means such as an arm (153).
  • the drive systems may comprise one or more drive rollers by adhesion and at least one track.
  • the connecting device (100) advantageously comprises annular bearings complementary (160, 161, 162, 163, 164) between the sleeve (121) and the fixed frame (101), possibly via the hub (102) - as shown in FIG. 3 and / or complementary annular bearings (170, 171) between the sleeve (121) and the second rotary frame (120). These complementary levels make it possible to avoid lateral movements of the rotating elements (110, 120, 121).
  • the connecting device comprises also pneumatic and / or hydraulic rotary connection means (130, 131, 132, 133) between the fixed frame (101) and at least one of the rotary frames (110, 120), and preferably both, and therefore for at least one of the turrets.
  • pneumatic and / or hydraulic rotary connection means 130, 131, 132, 133 between the fixed frame (101) and at least one of the rotary frames (110, 120), and preferably both, and therefore for at least one of the turrets.
  • These means of particularly allow a supply of compressed air to the handling and intervention.
  • These means advantageously comprise a cavity axial (130) in the central shaft (102), sealed rotating joints (131, 132) and complementary lines (133, 134).
  • rotary frame (110) is located between the fixed frame (101) and the second rotary frame (120).
  • the drive system of the second rotary frame (120) preferably comprises a toothed wheel (152) attached to the hub (102) and a motor (150) attached to the second rotary frame (120) and provided with a pinion (151).
  • the first turret (110 ') typically comprises a cabin of control (11) and a hopper (10) containing the anode cover product.
  • the second turret (120 ') typically comprises the various service tools of the electrolysis cells, such as a quilting device (8) intended to break the crust of alumina and cryolite that forms around and between the anodes, a shovel (7) intended for the removal of solid elements contained in an electrolysis cell at the time of anode change and anode handling system (9) intended for the extraction of spent anodes and the placement of new anodes.
  • the linking device (100) is then typically placed so that the rotary frames (110, 120) are located below the fixed frame (101) when the carriage (6) is in use position on the traveling crane (4).
  • the service module according to the invention allows the operator to have a large visibility on the electrolysis cell and on the tools or handling devices and intervention during his interventions. It also simplifies the task of the operator, in particular by avoiding significant angular rotations by report at its initial point. It also makes it possible to use the same module in separate electrolysis rooms in which the electrolysis cells are not oriented in the same way.
  • the invention also relates to a service unit (3) of a production plant of igneous electrolysis aluminum comprising a crane (4) and at least one service module (5) according to the invention.
  • Another subject of the invention is the use of a service module (5) or a service unit (3) according to the invention for interventions on cells electrolysis process (2) for the production of aluminum by igneous electrolysis.

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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)
  • Mechanical Engineering (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Claims (14)

  1. Drehvorrichtung zur mechanischen und elektrischen Verbindung (100) zwischen einem Transportmodul, typischerweise einem Schlitten (6), und Förder- und Eingriffsorganen (7, 8, 9, 10, 11) eines Werkes zur Produktion von Aluminium durch Schmelzflusselektrolyse, dadurch gekennzeichnet, dass sie umfasst:
    ein sog. Festgestell (101) zur Befestigung am Transportmodul (6), mit einer Nabe (102), welche eine Drehachse (103) definiert;
    eine Muffe (121), welche die Nabe (102) umgibt und um die Nabe (102) und um die Drehachse (103) drehbar ist,
    ein erstes, sog. Drehgestell (110), welches um die Drehachse (103) drehbar ist und die Muffe (121) in Drehbewegung versetzen kann und dazu bestimmt ist, mindestens ein Förder- und Eingriffsorgan (7, 8, 9, 10, 11) zu tragen;
    ein zweites, sog. Drehgestell (120), welches um die Muffe (121) und die Drehachse (103) drehbar ist und dazu bestimmt ist, mindestens ein Förder- und Eingriffsorgan (7, 8, 9, 10, 11) zu tragen;
    eine erste Vielzahl elektrischer Dreh-Gleit-Kontakte (113) mit jeweils mindestens einem ersten Glied (1131), welches am Festgestell (101) befestigt und mit mindestens einem Außenleiter (117) verbunden ist, und mindestens einem zweiten Glied (1132), welches an der Muffe (121) befestigt und mit mindestens einer Verteilungsleitung (118, 1181, 1182) verbunden ist;
    eine zweite Vielzahl elektrischer Dreh-Gleit-Kontakte (114) mit jeweils mindestens einem ersten Glied (1141), welches am zweiten Drehgestell (120) befestigt und mit mindestens einer Verteilungsleitung (119) verbunden ist, und mindestens einem zweiten Glied (1142), welches an der Muffe (121) befestigt und mit mindestens einer Verteilungsleitung (1181, 1182) verbunden ist;
    ein erstes Antriebssystem (140, 141, 142), welches die Drehbewegung des ersten Drehgestells (110) um die Achse (103) zu bewirken vermag;
    ein zweites Antriebssystem (150, 151, 152), welches die Drehbewegung des zweiten Drehgestells (120) um die Achse (103) zu bewirken vermag.
  2. Verbindungsvorrichtung (100) nach Anspruch 1, dadurch gekennzeichnet, dass sie weiterhin umfasst:
    ein erstes Ringlager (111) zwischen dem Festgestell (101) und dem ersten Drehgestell (110), welches die Drehbewegung zwischen diesen beiden Gestellen um die Drehachse (103) ermöglicht;
    ein zweites Ringlager (112) zwischen dem ersten Drehgestell (110) und dem zweiten Drehgestell (120), welches die Drehbewegung zwischen diesen beiden Gestellen um die Drehachse (103) ermöglicht.
  3. Verbindungsvorrichtung (100) nach irgendeinem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Antriebssysteme (140, 141, 142, 150, 151, 152) einen Motor (140, 150), ein Ritzel (141, 151) und einen Zahnkranz (142) oder ein Zahnrad (152) aufweisen.
  4. Verbindungsvorrichtung (100) nach irgendeinem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Antriebssysteme (140, 141, 142, 150, 151, 152) eine oder mehrere kraftschlüssige Antriebsrollen und mindestens eine Spur aufweisen.
  5. Verbindungsvorrichtung (100) nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie zusätzliche Ringlager (160, 161, 162, 163, 164) zwischen der Muffe (121) und dem Festgestell (101), eventuell über die Nabe (102), und/oder zusätzliche Ringlager (170, 171) zwischen der Muffe (121) und dem zweiten Drehgestell (120) aufweist.
  6. Verbindungsvorrichtung (100) nach irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sie außerdem Drehmittel zur pneumatischen und/oder hydraulischen Verbindung (130, 131, 132, 133, 134) zwischen dem Festgestell (101) und mindestens einem der Drehgestelle (110, 120) aufweist.
  7. Verbindungsvorrichtung (100) nach Anspruch 6, dadurch gekennzeichnet, dass die Drehmittel zur pneumatischen Verbindung (130, 131, 132, 133) eine axiale Vertiefung (130) in der Zentralwelle (102), dichte Drehverbindungen (131, 132) und zusätzliche Rohrleitungen (133, 134) aufweisen.
  8. Verbindungsvorrichtung (100) nach irgendeinem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das erste Drehgestell (110) zwischen dem Festgestell (101) und dem zweiten Drehgestell(120) liegt.
  9. Verbindungsvorrichtung (100) nach Anspruch 8, dadurch gekennzeichnet, dass das Antriebssystem des zweiten Drehgestells (120) ein an der Nabe (102) befestigtes Zahnrad (152) und einen am zweiten Drehgestell (120) befestigten Motor (150) mit einem Ritzel (151) aufweist.
  10. Bedienmodul (5) zur Verwendung in einem Werk zur Produktion von Aluminium durch Schmelzflusselektrolyse, mit einem Schlitten (6) sowie Förder- und Eingriffsorganen (7, 8, 9, 10, 11), dadurch gekennzeichnet, dass er zusätzlich umfasst:
    eine Verbindungsvorrichtung (100) nach irgendeinem der Ansprüche 1 bis 9, welche über das Festgestell (101) mit dem Schlitten (6) verbunden ist;
    einen ersten Halter (110'), welcher durch das erste Drehgestell (110) gebildet oder mit diesem ersten Drehgestell (110) verbunden ist und mindestens ein erstes Förder- und Eingriffsorgan (7, 8, 9, 10, 11) aufweist;
    einen zweiten Halter (120'), welcher durch das zweite Drehgestell (120) gebildet oder mit diesem zweiten Drehgestell (120) verbunden ist und mindestens ein zweites Förder- und Eingriffsorgan (7, 8, 9, 10, 11) aufweist.
  11. Bedienmodul (5) nach Anspruch 10, dadurch gekennzeichnet, dass die Verbindungsvorrichtung (100) so angeordnet ist, dass die Drehgestelle (110, 120) unter dem Festgestell (101) liegen, wenn sich der Schlitten (6) auf der Laufbrücke (4) in Betriebsstellung befindet.
  12. Bedieneinheit (3) eines Werkes zur Produktion von Aluminium durch Schmelzflusselektrolyse, mit einer Laufbrücke (4) und mindestens einem Bedienmodul (5) nach irgendeinem der Ansprüche 10 oder 11.
  13. Verwendung eines Bedienmoduls (5) nach irgendeinem der Ansprüche 10 oder 11 für Eingriffe an Elektrolysezellen (2) zur Produktion von Aluminium durch Schmelzflusselektrolyse.
  14. Verwendung einer Bedieneinheit (3) nach Anspruch 12 für Eingriffe an Elektrolysezellen (2) zur Produktion von Aluminium durch Schmelzflusselektrolyse.
EP03356013A 2003-01-31 2003-01-31 Bedienungsmaschine für Elektrolysezellen bei der Aluminiumproduktion Expired - Lifetime EP1443128B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AT03356013T ATE299193T1 (de) 2003-01-31 2003-01-31 Bedienungsmaschine für elektrolysezellen bei der aluminiumproduktion
DE60300977T DE60300977T2 (de) 2003-01-31 2003-01-31 Bedienungsmaschine für Elektrolysezellen bei der Aluminiumproduktion
EP03356013A EP1443128B1 (de) 2003-01-31 2003-01-31 Bedienungsmaschine für Elektrolysezellen bei der Aluminiumproduktion
ARP040100126A AR042735A1 (es) 2003-01-31 2004-01-16 Maquina de servicio de celulas de electrolisis para la produccion de aluminio
CNB2004800028800A CN100485094C (zh) 2003-01-31 2004-01-28 用于生产铝的电解池的操作器
CA2512745A CA2512745C (fr) 2003-01-31 2004-01-28 Machine de service de cellules d'electrolyse pour la production d'aluminium
BR0407135-2A BRPI0407135A (pt) 2003-01-31 2004-01-28 Máquina de serviço de células de eletrólise para produção de alumìnio
PCT/FR2004/000189 WO2004070086A2 (fr) 2003-01-31 2004-01-28 Machine de service de cellules d'electrolyse pour la production d'aluminium
US10/539,116 US20060060469A1 (en) 2003-01-31 2004-01-28 Serving machine for electrolysis cells for producing aluminium
IS8000A IS8000A (is) 2003-01-31 2005-08-29 Vél sem hefur eftirlit með rafgreiningarkerum semeru notuð við álframleiðslu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03356013A EP1443128B1 (de) 2003-01-31 2003-01-31 Bedienungsmaschine für Elektrolysezellen bei der Aluminiumproduktion

Publications (2)

Publication Number Publication Date
EP1443128A1 EP1443128A1 (de) 2004-08-04
EP1443128B1 true EP1443128B1 (de) 2005-07-06

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EP03356013A Expired - Lifetime EP1443128B1 (de) 2003-01-31 2003-01-31 Bedienungsmaschine für Elektrolysezellen bei der Aluminiumproduktion

Country Status (10)

Country Link
US (1) US20060060469A1 (de)
EP (1) EP1443128B1 (de)
CN (1) CN100485094C (de)
AR (1) AR042735A1 (de)
AT (1) ATE299193T1 (de)
BR (1) BRPI0407135A (de)
CA (1) CA2512745C (de)
DE (1) DE60300977T2 (de)
IS (1) IS8000A (de)
WO (1) WO2004070086A2 (de)

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RU208323U1 (ru) * 2021-07-30 2021-12-14 Общество с ограниченной ответственностью "Инжиниринг Строительство Обслуживание" Устройство для загрузки сыпучего сырья в электролизер для получения алюминия

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FR2872175B1 (fr) * 2004-06-25 2006-07-28 Ecl Soc Par Actions Simplifiee Module de service compact destine aux usines de production d'aluminium par electrolyse
FR2913985B1 (fr) * 2007-03-23 2009-08-28 Ecl Soc Par Actions Simplifiee Module de service muni d'au moins une pince a anode et d'un moyen permettant d'exercer une force ou un choc sur la tige d'anode.
CN101503808B (zh) * 2009-03-25 2014-03-26 贵阳铝镁设计研究院有限公司 一种电解多功能机组工具小车的配置方法及装置
CN102616665B (zh) * 2011-01-27 2014-03-19 中国有色（沈阳）冶金机械有限公司 铝电解多功能起重机的下料系统
EP4293141A1 (de) * 2022-06-13 2023-12-20 Dubai Aluminium PJSC Anodenwartungsanordnung für eine aluminium-elektrolyseanlage und verfahren zum betreiben dafür

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RU208323U1 (ru) * 2021-07-30 2021-12-14 Общество с ограниченной ответственностью "Инжиниринг Строительство Обслуживание" Устройство для загрузки сыпучего сырья в электролизер для получения алюминия

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Publication number Publication date
AR042735A1 (es) 2005-06-29
DE60300977D1 (de) 2005-08-11
CN100485094C (zh) 2009-05-06
WO2004070086A2 (fr) 2004-08-19
BRPI0407135A (pt) 2006-02-07
WO2004070086A8 (fr) 2004-10-21
EP1443128A1 (de) 2004-08-04
US20060060469A1 (en) 2006-03-23
ATE299193T1 (de) 2005-07-15
WO2004070086A3 (fr) 2004-11-18
IS8000A (is) 2005-08-29
CA2512745A1 (fr) 2004-08-19
CN1742117A (zh) 2006-03-01
DE60300977T2 (de) 2006-04-20
CA2512745C (fr) 2011-11-29

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