DE60005301D1 - ELECTROLYTIC CELL WITH IMPROVED ALUMINUM FEED - Google Patents

ELECTROLYTIC CELL WITH IMPROVED ALUMINUM FEED

Info

Publication number
DE60005301D1
DE60005301D1 DE60005301T DE60005301T DE60005301D1 DE 60005301 D1 DE60005301 D1 DE 60005301D1 DE 60005301 T DE60005301 T DE 60005301T DE 60005301 T DE60005301 T DE 60005301T DE 60005301 D1 DE60005301 D1 DE 60005301D1
Authority
DE
Germany
Prior art keywords
electrolyte
inter
foraminate
electrode gap
electrolytic cell
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
DE60005301T
Other languages
German (de)
Other versions
DE60005301T2 (en
Inventor
Nora Vittorio De
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 DE60005301D1 publication Critical patent/DE60005301D1/en
Application granted granted Critical
Publication of DE60005301T2 publication Critical patent/DE60005301T2/en
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
    • 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

An electrolytic cell for the electrowinning of aluminium comprises an electrochemically active foraminate metallic anode structure (15) for the evolution of oxygen and the escape of evolved oxygen therethrough which is spaced by an inter-electrode gap above a facing cathode (20). The cell further comprises means for promoting dissolution of powder alumina (32) fed to the surface of the electrolyte (30) and for supplying alumina-rich electrolyte to the inter-electrode gap by inducing an electrolyte circulation up from and down to the inter-electrode gap driven by the escape of anodically evolved oxygen through the foraminate anode structure. These means comprise electrolyte guide members (5) such as baffles or funnels having at least one inclined surface (6) immersed in the molten electrolyte (30) above the foraminate structure (15).
DE60005301T 1999-01-08 2000-01-10 ELECTROLYTIC CELL WITH IMPROVED ALUMINUM FEED Expired - Fee Related DE60005301T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
WOPCT/IB99/00017 1999-01-08
IB9900017 1999-01-08
PCT/IB2000/000029 WO2000040781A1 (en) 1999-01-08 2000-01-10 Electrolytic cell with improved alumina supply

Publications (2)

Publication Number Publication Date
DE60005301D1 true DE60005301D1 (en) 2003-10-23
DE60005301T2 DE60005301T2 (en) 2004-06-17

Family

ID=11004811

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60005301T Expired - Fee Related DE60005301T2 (en) 1999-01-08 2000-01-10 ELECTROLYTIC CELL WITH IMPROVED ALUMINUM FEED

Country Status (7)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU776726B2 (en) * 1999-10-26 2004-09-16 Moltech Invent S.A. Low temperature operating cell for the electrowinning of aluminium
US6638412B2 (en) * 2000-12-01 2003-10-28 Moltech Invent S.A. Prevention of dissolution of metal-based aluminium production anodes
EP1654401B1 (en) 2003-08-14 2011-10-05 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 (en) * 2011-06-22 2012-12-27 Sgl Carbon Se Annular electrolytic cell and annular cathode with magnetic field compensation
RU2698162C2 (en) * 2017-03-01 2019-08-22 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Perforated metal inert anode for aluminium production by molten electrolysis

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 (en) * 1979-05-03 1987-04-22 Oronzio De Nora Impianti PROCEDURE FOR IMPROVING THE TRANSPORT OF MATERIAL TO AN ELECTRODE AND RELATED HYDRODYNAMIC MEDIA
EP1146146B1 (en) * 1994-09-08 2003-10-29 MOLTECH Invent S.A. Horizontal drained cathode surface with recessed grooves for aluminium electrowinning

Also Published As

Publication number Publication date
CA2358103A1 (en) 2000-07-13
ATE250154T1 (en) 2003-10-15
ES2206175T3 (en) 2004-05-16
CA2358103C (en) 2005-11-15
NO20013377L (en) 2001-09-07
EP1147245A1 (en) 2001-10-24
NO20013377D0 (en) 2001-07-06
WO2000040781A1 (en) 2000-07-13
DE60005301T2 (en) 2004-06-17
EP1147245B1 (en) 2003-09-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee