US20040231979A1 - Alloy-based anode structures for aluminium production - Google Patents
Alloy-based anode structures for aluminium production Download PDFInfo
- Publication number
- US20040231979A1 US20040231979A1 US10/479,312 US47931204A US2004231979A1 US 20040231979 A1 US20040231979 A1 US 20040231979A1 US 47931204 A US47931204 A US 47931204A US 2004231979 A1 US2004231979 A1 US 2004231979A1
- Authority
- US
- United States
- Prior art keywords
- anode
- members
- metal
- electrolyte
- electrochemically active
- 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.)
- Abandoned
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000004411 aluminium Substances 0.000 title claims abstract description 50
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 50
- 229910045601 alloy Inorganic materials 0.000 title claims description 14
- 239000000956 alloy Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000003792 electrolyte Substances 0.000 claims abstract description 109
- 229910052751 metal Inorganic materials 0.000 claims abstract description 57
- 239000002184 metal Substances 0.000 claims abstract description 57
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000005363 electrowinning Methods 0.000 claims abstract description 28
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 27
- 239000001301 oxygen Substances 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 22
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 13
- 230000005923 long-lasting effect Effects 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- XVVDIUTUQBXOGG-UHFFFAOYSA-N [Ce].FOF Chemical compound [Ce].FOF XVVDIUTUQBXOGG-UHFFFAOYSA-N 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000001785 cerium compounds Chemical class 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- -1 zinc metals Chemical class 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 2
- 150000002602 lanthanoids Chemical class 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 239000010948 rhodium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052706 scandium Inorganic materials 0.000 claims description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 2
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 238000000576 coating method Methods 0.000 description 20
- 239000011248 coating agent Substances 0.000 description 17
- 238000004090 dissolution Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000010405 anode material Substances 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 229960005191 ferric oxide Drugs 0.000 description 4
- 235000013980 iron oxide Nutrition 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229960001296 zinc oxide Drugs 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910001610 cryolite Inorganic materials 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- JLQUFIHWVLZVTJ-UHFFFAOYSA-N carbosulfan Chemical compound CCCCN(CCCC)SN(C)C(=O)OC1=CC=CC2=C1OC(C)(C)C2 JLQUFIHWVLZVTJ-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910033181 TiB2 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
Definitions
- the inert structural metal is nickel and/or cobalt.
- the active diffusable metal may be iron, the electrochemically active bottom surface being iron oxide-based.
- the inert structural metal/active diffusable metal atomic ratio can be up to or even above 1, in particular from 1 to 4.
- the metal alloy of the bottom part comprises the inert structural metal and the active diffusable metal in a total amount of at least 65 weight %, in particular at least 80 weight %, preferably at least 90 weight % of the alloy.
- the metal alloy of the bottom part further comprises at least one metal selected from chromium, copper, silicon, titanium, tantalum, tungsten, vanadium, zirconium, scandium, yttrium, molybdenum, manganese, niobium, cerium and ytterbium in a total amount of up to 10 weight % of the alloy.
- the diffusion rate of the diffusable metal at the operating conditions can be adjusted by an appropriate addition of one or more additives to the alloy of the anode bottom part as disclosed in PCT/IB02/01241 (Nguyen/de Nora).
- the height of the anode member is usually of the same order as its width, for instance from half to three times, in particular from equal to twice, the width.
- the first and second faces of the tapered top part may have an average slope in the range of 30 and 75 deg, in particular 45 to 60 deg, to the horizontal.
- FIG. 8 shows a plan view of half of an assembly of several electrolyte guide members like the one shown in FIG. 7;
- FIG. 1 a and 1 b schematically show an anode 10 for the electrowinning of aluminium according to the invention.
- Each anode member 15 has two flats 15 c at the appropriate location in the tapered top part 15 b for securing the cross-members 13 thereon.
- the flat 15 c is indicated in FIG. 1 a
- each connecting member 13 may be perpendicular to the anode members 15 in a parallel configuration as shown in FIGS. 1 a & 1 b .
- the connecting cross-members 13 may be in an X configuration in which each connecting member 13 extends from one corner to the opposite corner of a rectangular or square anode structure, a vertical current feeder 11 being connected to the intersection of the connecting members 13 .
- FIGS. 2 a and 2 b in which the same reference numerals designate the same elements, schematically show a variation of the anode 10 shown in FIGS. 1 a and 1 b.
- FIG. 3 shows an aluminium electrowinning cell according to the invention having a series of anodes 10 which are similar to those shown in FIGS. 1 a and 1 b , immersed in an electrolyte 30 .
- the anodes 10 face a cathode cell bottom 20 connected to a negative busbar by current conductor bars 21 .
- the cathode cell bottom 20 is made of conductive material such as graphite or other carbonaceous material coated with an aluminium-wettable refractory cathodic coating 22 on which aluminium 35 is produced and from which it drains or on which it forms a shallow pool, a deep pool or a stabilised pool.
- the molten produced aluminium 35 is spaced apart from the facing anodes 10 by an inter-electrode gap.
- the core of the inactive anode components 11 ′, 11 ′′, 11 ′′′, 12 , 13 is preferably highly conductive and can be made of copper protected with successive layers of nickel, chromium, nickel, copper and optionally a further layer of nickel.
- the cell also comprises sidewalls 25 of carbonaceous or other material.
- the sidewalls 25 are coated/impregnated above the surface of the electrolyte 30 with a boron or a phosphate protective coating/impregnation 26 as described in U.S. Pat. No. 5,486,278 (Manganiello/Duruz/Bell ⁇ ).
- the cell may be operated with a conventional frozen electrolyte ledge covering and protecting the sidewalls 25 .
- the oxygen evolved from the active surfaces 16 escapes through the inter-member gaps 17 and is deflected by the upwardly converging surfaces 7 of baffles 5 .
- the oxygen escapes from the uppermost ends of the upwardly converging surfaces 7 enhancing dissolution of the alumina fed over the downwardly converging surfaces 6 .
- each baffle 5 is located just above mid-height between the surface of the electrolyte 30 and the transverse connecting members 13 .
- an electrolyte circulation 31 is generated by the escape of gas released from the active surfaces 16 of the anode members 15 between the inter-member gaps 17 and which is deflected by the upward converging surfaces 7 of the baffles 5 confining the gas and the electrolyte flow between their uppermost edges. From the uppermost edges of the baffles 5 , the anodically evolved gas escapes towards the surface of the electrolyte 30 , whereas the electrolyte circulation 31 flows down through the downward converging surfaces 6 , through the inter-member gaps and around edges of the metallic anode structure 12 , 13 , 15 to compensate the depression created by the anodically released gas below the active surfaces 17 of the anode members 15 .
- the electrolyte circulation 31 draws down into the inter-electrode gap dissolving alumina particles 32 which are fed above the downward converging surfaces 6 .
- FIG. 6 shows a variation of the anode members baffles shown in FIG. 5, wherein the anode members 15 have a rounded tapered upper part 15 b with an elliptic cross-section and the baffles 5 have their parallel vertical sections 4 located above their converging surfaces 6 , 7 .
- the innermost circular anode member 15 partly merges with the current feeder 11 , with ducts 18 extending between the innermost circular anode member 15 and the current feeder 11 to permit the escape of oxygen produced underneath the central current feeder 11 .
- FIGS. 11 to 14 in which the same reference numerals designate the same elements, show anodes 10 according to the invention having anode members 15 , 15 ′ which are asymmetric in vertical cross-section.
- the anode members 15 , 15 ′ are arranged in pairs with their tapered upper parts 15 b upwardly converging.
- FIGS. 11 and 13 faces 15 d ′, 15 d ′′ are planar and inclined, whereas in FIG. 12 these faces 15 e ′, 15 e ′′ are convex. This applies also to the second pair of anode members 15 starting from the left of FIG. 14.
- the remaining anode members 15 shown in FIG. 14 have one planar face 15 d ′ and one convex face 15 e ′′.
- each anode member 15 ′ is joined to opposite bottom ends of the tapered top part of the anode member 15 ′.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Powder Metallurgy (AREA)
- Prevention Of Electric Corrosion (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| WOPCT/IB01/01275 | 2001-07-13 | ||
| IB0101275 | 2001-07-13 | ||
| PCT/IB2002/002732 WO2003006716A2 (fr) | 2001-07-13 | 2002-07-09 | Structures d'anodes a base d'alliage pour la production d'aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20040231979A1 true US20040231979A1 (en) | 2004-11-25 |
Family
ID=11004133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/479,312 Abandoned US20040231979A1 (en) | 2001-07-13 | 2002-07-09 | Alloy-based anode structures for aluminium production |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20040231979A1 (fr) |
| EP (1) | EP1448810B1 (fr) |
| AT (1) | ATE382722T1 (fr) |
| AU (1) | AU2002321684A1 (fr) |
| CA (1) | CA2450071A1 (fr) |
| DE (1) | DE60224436D1 (fr) |
| NO (1) | NO20040143L (fr) |
| WO (1) | WO2003006716A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9222183B2 (en) * | 2012-08-01 | 2015-12-29 | Alcoa Inc. | Inert electrodes with low voltage drop and methods of making the same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE527398T1 (de) | 2003-08-14 | 2011-10-15 | Rio Tinto Alcan Int Ltd | Zelle zur elektrogewinnung von metallen mit elektrolytreiniger |
| AU2005250240B2 (en) * | 2004-06-03 | 2011-06-30 | Rio Tinto Alcan International Limited | High stability flow-through non-carbon anodes for aluminium electrowinning |
| WO2010127401A1 (fr) * | 2009-05-07 | 2010-11-11 | Aluminium Smelter Developments Pty Ltd | Système de contact à coincement |
| CN101580949B (zh) * | 2009-06-24 | 2010-08-25 | 中国铝业股份有限公司 | 一种提高铝电解槽稳定性的方法 |
| CN102140652B (zh) * | 2011-03-07 | 2012-09-19 | 陈虎政 | 一种新型铝电解用阳极及其生产方法 |
| RU2698162C2 (ru) * | 2017-03-01 | 2019-08-22 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Перфорированный металлический инертный анод для получения алюминия электролизом расплава |
| CN108977851B (zh) * | 2018-08-01 | 2020-05-05 | 新疆众和股份有限公司 | 一种电解铝用阳极钢爪 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6540887B2 (en) * | 1999-01-08 | 2003-04-01 | Moltech Invent Sa | Aluminum electrowinning cells with oxygen-evolving anodes |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3008116A1 (de) * | 1980-03-03 | 1981-09-17 | Conradty GmbH & Co Metallelektroden KG, 8505 Röthenbach | Gasentwickelnde metallelektrode fuer elektrochemische prozesse |
| DE3345530A1 (de) * | 1983-07-13 | 1985-06-27 | Basf Ag, 6700 Ludwigshafen | Gasentwickelnde metallelektrode fuer elektrolysezellen |
| ES2234697T3 (es) * | 1999-12-09 | 2005-07-01 | Moltech Invent S.A. | Anodos de base metalica para celdas de extraccion electrolitica. |
-
2002
- 2002-07-09 WO PCT/IB2002/002732 patent/WO2003006716A2/fr active IP Right Grant
- 2002-07-09 US US10/479,312 patent/US20040231979A1/en not_active Abandoned
- 2002-07-09 EP EP02755397A patent/EP1448810B1/fr not_active Expired - Lifetime
- 2002-07-09 CA CA002450071A patent/CA2450071A1/fr not_active Abandoned
- 2002-07-09 AT AT02755397T patent/ATE382722T1/de not_active IP Right Cessation
- 2002-07-09 AU AU2002321684A patent/AU2002321684A1/en not_active Abandoned
- 2002-07-09 DE DE60224436T patent/DE60224436D1/de not_active Expired - Lifetime
-
2004
- 2004-01-13 NO NO20040143A patent/NO20040143L/no not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6540887B2 (en) * | 1999-01-08 | 2003-04-01 | Moltech Invent Sa | Aluminum electrowinning cells with oxygen-evolving anodes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9222183B2 (en) * | 2012-08-01 | 2015-12-29 | Alcoa Inc. | Inert electrodes with low voltage drop and methods of making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2450071A1 (fr) | 2003-01-23 |
| NO20040143L (no) | 2004-01-13 |
| EP1448810A2 (fr) | 2004-08-25 |
| WO2003006716A3 (fr) | 2004-06-03 |
| ATE382722T1 (de) | 2008-01-15 |
| AU2002321684A1 (en) | 2003-01-29 |
| DE60224436D1 (de) | 2008-02-14 |
| WO2003006716A2 (fr) | 2003-01-23 |
| EP1448810B1 (fr) | 2008-01-02 |
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Legal Events
| Date | Code | Title | Description |
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| AS | Assignment |
Owner name: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) - Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MARQUET, PIERRE;CUCHE, ETIENNE;DEPEURSINGE, CHRISTIAN;AND OTHERS;REEL/FRAME:016588/0151;SIGNING DATES FROM 20040601 TO 20040602 Owner name: UNIVERSITE DE LAUSANNE/BRA, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MARQUET, PIERRE;CUCHE, ETIENNE;DEPEURSINGE, CHRISTIAN;AND OTHERS;REEL/FRAME:016588/0151;SIGNING DATES FROM 20040601 TO 20040602 |
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