CA2358103C - Cellule d'electrolyse a alimentation en alumine amelioree - Google Patents

Cellule d'electrolyse a alimentation en alumine amelioree Download PDF

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Publication number
CA2358103C
CA2358103C CA002358103A CA2358103A CA2358103C CA 2358103 C CA2358103 C CA 2358103C CA 002358103 A CA002358103 A CA 002358103A CA 2358103 A CA2358103 A CA 2358103A CA 2358103 C CA2358103 C CA 2358103C
Authority
CA
Canada
Prior art keywords
electrolyte
anode
alumina
cell
foraminate
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 - Fee Related
Application number
CA002358103A
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English (en)
Other versions
CA2358103A1 (fr
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.)
Filing date
Publication date
Application filed by Moltech Invent SA filed Critical Moltech Invent SA
Publication of CA2358103A1 publication Critical patent/CA2358103A1/fr
Application granted granted Critical
Publication of CA2358103C publication Critical patent/CA2358103C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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

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)
  • Primary Cells (AREA)

Abstract

L'invention concerne une cellule d'électrolyse d'extraction électrolytique de l'aluminium comprenant une structure d'anode (15) métallique perforée électrochimiquement active permettant l'émission d'oxygène et l'échappement de l'oxygène émis à travers les trous. Les anodes de la structure sont séparées par des espaces inter-électrodes et situées au-dessus d'une cathode opposée (20). La cellule comprend également un dispositif qui active la dissolution d'alumine en poudre (32) injectée dans la surface de l'électrolyte (30) et qui alimente l'espace inter-électrodes en électrolyte riche en alumine en induisant une circulation d'électrolyte montant et descendant dans l'espace inter-électrode entraînée par l'échappement à travers la structure perforée de l'oxygène émis par l'anode. Ce dispositif comprend des éléments de guidage d'électrolyse (5) tels que des déflecteurs ou des entonnoirs pourvus d'au moins une surface inclinée (6) immergée dans l'électrolyte fondu (30) au-dessus de la structure perforée (15).
CA002358103A 1999-01-08 2000-01-10 Cellule d'electrolyse a alimentation en alumine amelioree Expired - Fee Related CA2358103C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IBPCT/IB99/00017 1999-01-08
IB9900017 1999-01-08
PCT/IB2000/000029 WO2000040781A1 (fr) 1999-01-08 2000-01-10 Cellule d'electrolyse a alimentation en alumine amelioree

Publications (2)

Publication Number Publication Date
CA2358103A1 CA2358103A1 (fr) 2000-07-13
CA2358103C true CA2358103C (fr) 2005-11-15

Family

ID=11004811

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002358103A Expired - Fee Related CA2358103C (fr) 1999-01-08 2000-01-10 Cellule d'electrolyse a alimentation en alumine amelioree

Country Status (7)

Country Link
EP (1) EP1147245B1 (fr)
AT (1) ATE250154T1 (fr)
CA (1) CA2358103C (fr)
DE (1) DE60005301T2 (fr)
ES (1) ES2206175T3 (fr)
NO (1) NO20013377L (fr)
WO (1) WO2000040781A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE276384T1 (de) * 1999-10-26 2004-10-15 Moltech Invent Sa Bei niedriger temperatur betriebene elektrolysezelle zur herstellung von aluminium
US6638412B2 (en) * 2000-12-01 2003-10-28 Moltech Invent S.A. Prevention of dissolution of metal-based aluminium production anodes
US7846309B2 (en) 2003-08-14 2010-12-07 Rio Tinto Alcan International Limited Metal electrowinning cell with electrolyte purifier
US9121104B2 (en) * 2011-01-31 2015-09-01 Alcoa Inc. Systems and methods for determining alumina properties
DE102011078002A1 (de) * 2011-06-22 2012-12-27 Sgl Carbon Se Ringförmige Elektrolysezelle und ringförmige Kathode mit Magnetfeldkompensation
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110178A (en) * 1977-05-17 1978-08-29 Aluminum Company Of America Flow control baffles for molten salt electrolysis
IT1165047B (it) * 1979-05-03 1987-04-22 Oronzio De Nora Impianti Procedimento per migliorare il trasporto di materia ad un elettrodo e mezzi idrodinamici relativi
AU688098B2 (en) * 1994-09-08 1998-03-05 Moltech Invent S.A. Aluminium electrowinning cell with improved carbon cathode blocks

Also Published As

Publication number Publication date
DE60005301T2 (de) 2004-06-17
WO2000040781A1 (fr) 2000-07-13
NO20013377D0 (no) 2001-07-06
ES2206175T3 (es) 2004-05-16
EP1147245A1 (fr) 2001-10-24
CA2358103A1 (fr) 2000-07-13
NO20013377L (no) 2001-09-07
DE60005301D1 (de) 2003-10-23
EP1147245B1 (fr) 2003-09-17
ATE250154T1 (de) 2003-10-15

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