CA2498622A1 - Cellules d'extraction electrolytique de l'aluminium avec anodes a base de metal - Google Patents

Cellules d'extraction electrolytique de l'aluminium avec anodes a base de metal Download PDF

Info

Publication number
CA2498622A1
CA2498622A1 CA002498622A CA2498622A CA2498622A1 CA 2498622 A1 CA2498622 A1 CA 2498622A1 CA 002498622 A CA002498622 A CA 002498622A CA 2498622 A CA2498622 A CA 2498622A CA 2498622 A1 CA2498622 A1 CA 2498622A1
Authority
CA
Canada
Prior art keywords
weight
cell
fluoride
anode
aluminium
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.)
Granted
Application number
CA002498622A
Other languages
English (en)
Other versions
CA2498622C (fr
Inventor
Vittorio De Nora
Thinh T. Nguyen
Jean-Jacques Duruz
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.)
Rio Tinto Alcan International Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2498622A1 publication Critical patent/CA2498622A1/fr
Application granted granted Critical
Publication of CA2498622C publication Critical patent/CA2498622C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • C25C7/025—Electrodes; Connections thereof used in cells for the electrolysis of melts
    • 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
    • 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

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)

Abstract

L'invention porte sur une cellule destinée à l'extraction électrolytique de l'aluminium et comprenant une anode à base de métal (10) contenant au moins du nickel, du cobalt et du fer, par exemple, une anode fabriquée à partir d'un alliage comprenant 50 à 60 % en poids au total de nickel et/ou de cobalt; 25 à 40 % en poids de fer; 6 à 12 % en poids de cuivre; 0,5 à 2 % en poids d'aluminium et/ou de niobium; et 0,5 à 1,5 % en poids au total d'autres constituants. L'anode (10) peut être recouverte d'un revêtement à base d'hématite et, éventuellement, d'un revêtement extérieur à base d'oxyfluorure de cérium. La cellule contient un électrolyte fondu renfermant du fluorure (5), à une température inférieure à 940 ·C, dans laquelle l'anode est immergée et qui comprend: 5 à 14 % en poids d'alumine dissoute; 35 à 45 % en poids de fluorure d'aluminium; 30 à 45 % en poids de fluorure de sodium; 5 à 20 % en poids de fluorure de potassium; 0 à 5 % en poids de fluorure de calcium et 0 à 5 % en poids au total d'un ou plusieurs autres constituants. Une tige (14b) d'anode contenant du nickel peut être utilisée pour suspendre l'anode (10) dans l'électrolyte opposé à une cathode (21, 21A, 25) dont une surface (20) peut être mouillée par l'aluminium, en particulier une surface horizontale ou inclinée drainée.
CA2498622A 2002-10-18 2003-10-17 Cellules d'extraction electrolytique de l'aluminium avec anodes a base de metal Expired - Fee Related CA2498622C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IB0204059 2002-10-18
IBPCT/IB02/04059 2002-10-18
PCT/IB2003/004649 WO2004035871A1 (fr) 2002-10-18 2003-10-17 Cellules d'extraction electrolytique de l'aluminium avec anodes a base de metal

Publications (2)

Publication Number Publication Date
CA2498622A1 true CA2498622A1 (fr) 2004-04-29
CA2498622C CA2498622C (fr) 2011-09-20

Family

ID=32104592

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2498622A Expired - Fee Related CA2498622C (fr) 2002-10-18 2003-10-17 Cellules d'extraction electrolytique de l'aluminium avec anodes a base de metal

Country Status (12)

Country Link
US (1) US20110031129A1 (fr)
EP (1) EP1554416B1 (fr)
CN (1) CN1735717B (fr)
AT (1) ATE543927T1 (fr)
AU (1) AU2003269385B2 (fr)
CA (1) CA2498622C (fr)
ES (1) ES2381927T3 (fr)
NO (1) NO20052377L (fr)
NZ (1) NZ538777A (fr)
RU (1) RU2318924C2 (fr)
SI (1) SI1554416T1 (fr)
WO (1) WO2004035871A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ540408A (en) * 2003-02-20 2007-04-27 Moltech Invent Sa Aluminium electrowinning cells with metal-based anodes and a fluoride-containing molten electrolyte
AU2005224455B2 (en) * 2004-03-18 2010-05-13 Rio Tinto Alcan International Limited Aluminium electrowinning cells with non-carbon anodes
CN100465350C (zh) * 2005-06-24 2009-03-04 曹大力 以铁及其合金为阳极在电解槽中制备铝-铁基合金的方法
MY153924A (en) * 2008-09-08 2015-04-15 Rio Tinto Alcan Int Ltd Metallic oxygen evolving anode operating at high current density for aluminium reduction cells.
CN101586250B (zh) * 2009-06-10 2010-12-29 中南大学 一种复合涂层及其制备方法和应用
RU2457286C1 (ru) * 2011-03-02 2012-07-27 Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской Академии наук Способ электролиза расплавленных солей с кислородсодержащими добавками с использованием инертного анода
CN103484891B (zh) * 2012-06-11 2016-06-15 内蒙古联合工业有限公司 一种电解铝用电解槽及使用该电解槽的电解工艺
AU2013275997B2 (en) 2012-06-11 2016-06-16 Inner Mongolia United Industrial Co., Ltd. Electrolyte used for aluminum electrolysis and electrolysis process using the electrolyte
CN103014769A (zh) * 2012-11-26 2013-04-03 中国铝业股份有限公司 一种铝电解用合金惰性阳极及其制备方法
CA2917342C (fr) * 2013-07-09 2018-05-29 Obshchestvo S Ogranichennoy Otvetstvennost'yu "Obedinennaya Kompaniya Rusal Inzhenerno-Tekhnologicheskiy Tsentr" Electrolyte permettant d'obtenir des substances fondues au moyen d'un electrolyseur d'aluminium
CA2917436C (fr) * 2013-08-19 2017-10-03 Dmitriy Alexandrovich SIMAKOV Anode a base de fer pour obtenir de l'aluminium par electrolyse de bains de fusion
CN105132952B (zh) * 2015-08-26 2017-09-29 贵州理工学院 一种能降低全氟化碳排放量的电解质体系
KR102562722B1 (ko) * 2016-02-01 2023-08-03 재단법인 포항산업과학연구원 전해용 양극, 이를 포함하는 전해조, 및 상기 전해조를 이용한 전해 방법
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
RU2686408C1 (ru) * 2018-06-20 2019-04-25 Федеральное государственное бюджетное учреждение науки Институт высокотемпературной электрохимии Уральского отделения Российской Академии наук Способ электролитического получения алюминия
CN114717610B (zh) * 2022-05-16 2023-08-08 中国铝业股份有限公司 一种降低铝电解载氟氧化铝中钾含量的方法
WO2024030044A1 (fr) * 2022-08-02 2024-02-08 Владислав Владимирович ФУРСЕНКО Procédé de production d'aluminium par électrolyse d'une solution d'alumine dans de la cryolite

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US400766A (en) * 1889-04-02 Process of reducing aluminium by electrolysis
US400664A (en) * 1886-07-09 1889-04-02 M Hall Charles Process of reducing aluminium from its fluoride salts by electrolysis
SU554318A1 (ru) * 1974-03-19 1977-04-15 Институт общей и неорганической химии АН Украинской ССР Электролит дл получени алюмо-кремниевых сплавов
US5006209A (en) * 1990-02-13 1991-04-09 Electrochemical Technology Corp. Electrolytic reduction of alumina
US5725744A (en) * 1992-03-24 1998-03-10 Moltech Invent S.A. Cell for the electrolysis of alumina at low temperatures
US5284562A (en) * 1992-04-17 1994-02-08 Electrochemical Technology Corp. Non-consumable anode and lining for aluminum electrolytic reduction cell
US6497807B1 (en) * 1998-02-11 2002-12-24 Northwest Aluminum Technologies Electrolyte treatment for aluminum reduction
US6258247B1 (en) * 1998-02-11 2001-07-10 Northwest Aluminum Technology Bath for electrolytic reduction of alumina and method therefor
US6692631B2 (en) * 2002-02-15 2004-02-17 Northwest Aluminum Carbon containing Cu-Ni-Fe anodes for electrolysis of alumina
US6800191B2 (en) * 2002-03-15 2004-10-05 Northwest Aluminum Technologies Electrolytic cell for producing aluminum employing planar anodes
AU2005224455B2 (en) * 2004-03-18 2010-05-13 Rio Tinto Alcan International Limited Aluminium electrowinning cells with non-carbon anodes

Also Published As

Publication number Publication date
NZ538777A (en) 2007-02-23
CN1735717B (zh) 2011-12-28
AU2003269385A1 (en) 2004-05-04
SI1554416T1 (sl) 2012-05-31
CA2498622C (fr) 2011-09-20
WO2004035871A1 (fr) 2004-04-29
RU2005115103A (ru) 2005-10-27
RU2318924C2 (ru) 2008-03-10
EP1554416B1 (fr) 2012-02-01
AU2003269385B2 (en) 2009-06-04
US20110031129A1 (en) 2011-02-10
ES2381927T3 (es) 2012-06-01
NO20052377L (no) 2005-05-13
ATE543927T1 (de) 2012-02-15
CN1735717A (zh) 2006-02-15
EP1554416A1 (fr) 2005-07-20

Similar Documents

Publication Publication Date Title
CA2498622A1 (fr) Cellules d'extraction electrolytique de l'aluminium avec anodes a base de metal
AU2005224454B2 (en) Non-carbon anodes with active coatings
US6372099B1 (en) Cells for the electrowinning of aluminium having dimensionally stable metal-based anodes
US6878247B2 (en) Metal-based anodes for aluminium electrowinning cells
US20050194066A1 (en) Metal-based anodes for aluminium electrowinning cells
WO2000006804A1 (fr) Anodes a base d'un alliage nickel-fer, destinees a des cellules d'extraction electrolytique d'aluminium
CA2505285A1 (fr) Cellules d'extraction electrolytique de l'aluminium a anodes a base de metal
US6998032B2 (en) Metal-based anodes for aluminium electrowinning cells
EP1240364B1 (fr) Anodes a base metallique pour cellules d'extraction electrolytique d'aluminium
US6913682B2 (en) Cells for the electrowinning of aluminium having dimensionally stable metal-based anodes
US20030226760A1 (en) Aluminium electrowinning with metal-based anodes
WO2002083991A2 (fr) Anodes nickel-fer pour cellules d'electroextraction d'aluminium
EP1377694B1 (fr) Anodes a base de metal pour des cellules de production d'aluminium
EP1381716B1 (fr) Anodes a base de metal pour cellules de production d'aluminium
CA2451574A1 (fr) Fonctionnement de cellules a extraction electrolytique d'aluminium pourvues d'anodes a base de metal
AU2002236142A1 (en) Metal-based anodes for aluminium production cells
AU2002310576A1 (en) Operation of aluminium electrowinning cells having metal-based anodes
CA2477143A1 (fr) Anodes metalliques nickel-fer oxydees en surface pour production d'aluminium

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20141017