EP1448810A2 - Auf basis von legierungen anodenstrukturen für die herstellung von aluminium - Google Patents

Auf basis von legierungen anodenstrukturen für die herstellung von aluminium

Info

Publication number: EP1448810A2
Authority: EP; European Patent Office
Prior art keywords: anode; members; metal; electrolyte; electrochemically active
Prior art date: 2001-07-13
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP02755397A

Other languages

English (en)

French (fr)

Other versions

EP1448810B1 (de

Inventor

Vittorio De Nora

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.)

Moltech Invent SA

Original Assignee

Moltech Invent SA

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.)

2001-07-13

Filing date

2002-07-09

Publication date

2004-08-25

2002-07-09 Application filed by Moltech Invent SA filed Critical Moltech Invent SA

2004-08-25 Publication of EP1448810A2 publication Critical patent/EP1448810A2/de

2008-01-02 Application granted granted Critical

2008-01-02 Publication of EP1448810B1 publication Critical patent/EP1448810B1/de

2022-07-09 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000004411 aluminium Substances 0.000 title claims abstract description 51
229910052782 aluminium Inorganic materials 0.000 title claims abstract description 51
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 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 7
239000003792 electrolyte Substances 0.000 claims abstract description 109
229910052751 metal Inorganic materials 0.000 claims abstract description 56
239000002184 metal Substances 0.000 claims abstract description 56
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 31
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
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
238000000034 method Methods 0.000 claims description 9
229910052742 iron Inorganic materials 0.000 claims description 7
229910052759 nickel Inorganic materials 0.000 claims description 7
XVVDIUTUQBXOGG-UHFFFAOYSA-N [Ce].FOF Chemical compound [Ce].FOF XVVDIUTUQBXOGG-UHFFFAOYSA-N 0.000 claims description 6
150000001785 cerium compounds Chemical class 0.000 claims description 6
229910052684 Cerium Inorganic materials 0.000 claims description 5
GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 5
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
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
229910052725 zinc Inorganic materials 0.000 claims description 4
239000011701 zinc 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
229910052799 carbon Inorganic materials 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
229910001610 cryolite Inorganic materials 0.000 description 3
JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
229960005191 ferric oxide Drugs 0.000 description 3
238000011065 in-situ storage Methods 0.000 description 3
UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
235000013980 iron oxide Nutrition 0.000 description 3
239000000463 material Substances 0.000 description 3
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
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 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

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 height of the tapered top part may be greater than half the size of the width of the anode member but preferably not greater than twice the size of the width of the anode member.
the surface 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.
the tapered top part permits an improved up-flow of electrolyte from the electrochemically active surface by delimiting an electrolyte up-flow path with a gradually increasing section that reduces or prevents the formation of flow-inhibiting turbulences adjacent and/or above the anode members in the electrolyte.
the overall 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 anode members 15 have an electrochemically active lower surface 16 on which during cell operation oxygen is anodically evolved.
the anode members 15 are in the form of parallel rods in a foraminate coplanar arrangement, laterally spaced apart from one another by inter-member gaps 17.
the inter-member gaps 17 constitute flow-through openings for the circulation of electrolyte and the escape of anodically-evolved gas from the electrochemically active surfaces 16.
the anodes 10 are further fitted with means for enhancing dissolution of fed alumina in the form of electrolyte guide members 5 formed of parallel spaced-apart inclined baffles 5 located above and adjacent to the foraminate anode structure 12,13,15.
the baffles 5 provide upper downwardly converging surfaces 6 and lower upwardly converging surfaces 7 that deflect gaseous oxygen which is anodically produced below the electrochemically active surface 16 of the anode members 15 and which escapes between the inter-member gaps 17 through the foraminate anode structure 12,13,15.
the oxygen released above the baffles 5 promotes dissolution of alumina fed into the electrolyte 30 above the downwardly converging surfaces 6.

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)

EP02755397A 2001-07-13 2002-07-09 Anodenstrukturen auf der basis von legierungen für die herstellung von aluminium Expired - Lifetime EP1448810B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
IB0101275		2001-07-13
WOPCT/IB01/01275		2001-07-13
PCT/IB2002/002732 WO2003006716A2 (en)	2001-07-13	2002-07-09	Alloy-based anode structures for aluminium production

Publications (2)

Publication Number	Publication Date
EP1448810A2 true EP1448810A2 (de)	2004-08-25
EP1448810B1 EP1448810B1 (de)	2008-01-02

Family

ID=11004133

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP02755397A Expired - Lifetime EP1448810B1 (de)	2001-07-13	2002-07-09	Anodenstrukturen auf der basis von legierungen für die herstellung von aluminium

Country Status (8)

Country	Link
US (1)	US20040231979A1 (de)
EP (1)	EP1448810B1 (de)
AT (1)	ATE382722T1 (de)
AU (1)	AU2002321684A1 (de)
CA (1)	CA2450071A1 (de)
DE (1)	DE60224436D1 (de)
NO (1)	NO20040143L (de)
WO (1)	WO2003006716A2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ES2375057T3 (es)	2003-08-14	2012-02-24	Rio Tinto Alcan International Limited	Célula de extracción electrolítica de metales con prificador de electrolito.
CA2567127C (en) *	2004-06-03	2012-08-28	Moltech Invent S.A.	High stability flow-through non-carbon anodes for aluminium electrowinning
WO2010127401A1 (en) *	2009-05-07	2010-11-11	Aluminium Smelter Developments Pty Ltd	Wedge contact system
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
CA2880637A1 (en) *	2012-08-01	2014-02-06	Alcoa Inc.	Inert electrodes with low voltage drop and methods of making the same
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
ES2215603T3 (es) *	1999-01-08	2004-10-16	Moltech Invent S.A.	Celda para electrolisis de aluminio con anodos generadores de oxigeno.
DE60018464T2 (de) *	1999-12-09	2005-07-28	Moltech Invent S.A.	Anoden auf basis von metallen für elektrolysezellen zur aluminiumgewinnung

2002
- 2002-07-09 AT AT02755397T patent/ATE382722T1/de not_active IP Right Cessation
- 2002-07-09 WO PCT/IB2002/002732 patent/WO2003006716A2/en not_active Ceased
- 2002-07-09 AU AU2002321684A patent/AU2002321684A1/en not_active Abandoned
- 2002-07-09 CA CA002450071A patent/CA2450071A1/en not_active Abandoned
- 2002-07-09 DE DE60224436T patent/DE60224436D1/de not_active Expired - Lifetime
- 2002-07-09 US US10/479,312 patent/US20040231979A1/en not_active Abandoned
- 2002-07-09 EP EP02755397A patent/EP1448810B1/de not_active Expired - Lifetime
2004
- 2004-01-13 NO NO20040143A patent/NO20040143L/no not_active Application Discontinuation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03006716A2 *

Also Published As

Publication number	Publication date
NO20040143L (no)	2004-01-13
CA2450071A1 (en)	2003-01-23
WO2003006716A3 (en)	2004-06-03
DE60224436D1 (de)	2008-02-14
EP1448810B1 (de)	2008-01-02
AU2002321684A1 (en)	2003-01-29
US20040231979A1 (en)	2004-11-25
ATE382722T1 (de)	2008-01-15
WO2003006716A2 (en)	2003-01-23

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