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CA2295495A1 - A drained cathode cell for the production of aluminium - Google Patents

A drained cathode cell for the production of aluminium Download PDF

Info

Publication number
CA2295495A1
CA2295495A1 CA002295495A CA2295495A CA2295495A1 CA 2295495 A1 CA2295495 A1 CA 2295495A1 CA 002295495 A CA002295495 A CA 002295495A CA 2295495 A CA2295495 A CA 2295495A CA 2295495 A1 CA2295495 A1 CA 2295495A1
Authority
CA
Canada
Prior art keywords
cathode
aluminium
anode
anodes
sloping
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
CA002295495A
Other languages
French (fr)
Other versions
CA2295495C (en
Inventor
Vittorio De Nora
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.)
Moltech Invent SA
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 CA2295495A1 publication Critical patent/CA2295495A1/en
Application granted granted Critical
Publication of CA2295495C publication Critical patent/CA2295495C/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

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)
  • Secondary Cells (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A drained cathode cell for the produc-tion of aluminium by the electrolysis of an aluminium compound dissolved in a molten electrolyte, in which a dimensionally stable active cathode surface (35) has a sloping aluminium-wettable surface (37) permitting the produced aluminium to drain from the cathode surface. The anodes (10) are car-bon or non-carbon anodes with active faces (16) facing cathode surfaces (35) both at a slope up to about 60°. The anode-cathode gap between the sloping anodes and cath-odes is no more than 3 cm and is config-ured such that an upward circulation of the electrolyte is induced in the anode-cathode space by the anodically-released gases. An alumina-rich melt is fed at the lower part of the anode-cathode gap.
CA002295495A 1997-07-08 1998-07-07 A drained cathode cell for the production of aluminium Expired - Fee Related CA2295495C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US89096397A 1997-07-08 1997-07-08
US08/890,963 1997-07-08
PCT/IB1998/001045 WO1999002764A1 (en) 1997-07-08 1998-07-07 A drained cathode cell for the production of aluminium

Publications (2)

Publication Number Publication Date
CA2295495A1 true CA2295495A1 (en) 1999-01-21
CA2295495C CA2295495C (en) 2007-11-20

Family

ID=25397393

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002295495A Expired - Fee Related CA2295495C (en) 1997-07-08 1998-07-07 A drained cathode cell for the production of aluminium

Country Status (6)

Country Link
EP (1) EP0996773B1 (en)
AU (1) AU8031398A (en)
CA (1) CA2295495C (en)
DE (1) DE69837966T2 (en)
NO (1) NO321787B1 (en)
WO (1) WO1999002764A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938914A (en) * 1997-09-19 1999-08-17 Aluminum Company Of America Molten salt bath circulation design for an electrolytic cell
DE60016921T2 (en) * 1999-04-16 2005-12-22 Moltech Invent S.A. ELECTROLYTIC CELL WITH IMPROVED TONER DELIVERY DEVICE
AU776726B2 (en) * 1999-10-26 2004-09-16 Moltech Invent S.A. Low temperature operating cell for the electrowinning of aluminium
WO2007105124A2 (en) * 2006-03-10 2007-09-20 Moltech Invent S.A. Aluminium electrowinning cell with reduced heat loss
CN100478500C (en) * 2007-03-02 2009-04-15 冯乃祥 Abnormal cathode carbon block structure aluminum electrolysis bath
DE102010039638B4 (en) * 2010-08-23 2015-11-19 Sgl Carbon Se Cathode, apparatus for aluminum extraction and use of the cathode in aluminum production
DE102011086040A1 (en) * 2011-11-09 2013-05-16 Sgl Carbon Se Electrolysis cell, in particular for the production of aluminum, with a trough-shaped cathode
AU2013204396B2 (en) * 2012-05-16 2015-01-29 Lynas Services Pty Ltd Electrolytic cell for production of rare earth metals
WO2014060422A2 (en) * 2012-10-17 2014-04-24 Sgl Carbon Se Cathode block with trapezoidal cross section

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1251962B (en) * 1963-11-21 1967-10-12 The British Aluminium Company Limited, London Cathode for an electrolytic cell for the production of aluminum and process for the production of the same
DE69114511D1 (en) * 1990-08-20 1995-12-14 Comalco Alu IMPROVED ALUMINUM MELTING CELL.
AU677777B2 (en) * 1992-04-01 1997-05-08 Moltech Invent S.A. Prevention of oxidation of carbonaceous and other materials at high temperatures
CA2199288C (en) * 1994-09-08 2008-06-17 Vittorio De Nora Aluminium electrowinning cell with improved carbon cathode blocks

Also Published As

Publication number Publication date
CA2295495C (en) 2007-11-20
NO20000095D0 (en) 2000-01-07
DE69837966D1 (en) 2007-08-02
WO1999002764A1 (en) 1999-01-21
AU8031398A (en) 1999-02-08
EP0996773A1 (en) 2000-05-03
NO20000095L (en) 2000-03-06
NO321787B1 (en) 2006-07-03
EP0996773B1 (en) 2007-06-20
DE69837966T2 (en) 2008-02-28

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