ATE250154T1 - ELECTROLYTIC CELL WITH IMPROVED ALUMINUM SUPPLY - Google Patents

ELECTROLYTIC CELL WITH IMPROVED ALUMINUM SUPPLY

Info

Publication number
ATE250154T1
ATE250154T1 AT00900037T AT00900037T ATE250154T1 AT E250154 T1 ATE250154 T1 AT E250154T1 AT 00900037 T AT00900037 T AT 00900037T AT 00900037 T AT00900037 T AT 00900037T AT E250154 T1 ATE250154 T1 AT E250154T1
Authority
AT
Austria
Prior art keywords
electrolyte
inter
foraminate
electrode gap
electrolytic cell
Prior art date
Application number
AT00900037T
Other languages
German (de)
Inventor
Nora Vittorio De
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
Application granted granted Critical
Publication of ATE250154T1 publication Critical patent/ATE250154T1/en

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).
AT00900037T 1999-01-08 2000-01-10 ELECTROLYTIC CELL WITH IMPROVED ALUMINUM SUPPLY ATE250154T1 (en)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
ATE250154T1 true ATE250154T1 (en) 2003-10-15

Family

ID=11004811

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00900037T ATE250154T1 (en) 1999-01-08 2000-01-10 ELECTROLYTIC CELL WITH IMPROVED ALUMINUM SUPPLY

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
NZ517675A (en) * 1999-10-26 2004-10-29 Moltech Invent S 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
AU2004265508B2 (en) 2003-08-14 2010-03-11 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
NO20013377D0 (en) 2001-07-06
NO20013377L (en) 2001-09-07
CA2358103C (en) 2005-11-15
DE60005301T2 (en) 2004-06-17
EP1147245A1 (en) 2001-10-24
EP1147245B1 (en) 2003-09-17
DE60005301D1 (en) 2003-10-23
ES2206175T3 (en) 2004-05-16
CA2358103A1 (en) 2000-07-13
WO2000040781A1 (en) 2000-07-13

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Legal Events

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