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WO2013068412A3 - Cathode block having a domed and/or rounded surface - Google Patents

Cathode block having a domed and/or rounded surface Download PDF

Info

Publication number
WO2013068412A3
WO2013068412A3 PCT/EP2012/072046 EP2012072046W WO2013068412A3 WO 2013068412 A3 WO2013068412 A3 WO 2013068412A3 EP 2012072046 W EP2012072046 W EP 2012072046W WO 2013068412 A3 WO2013068412 A3 WO 2013068412A3
Authority
WO
WIPO (PCT)
Prior art keywords
cathode block
section
regions
groove
region
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.)
Ceased
Application number
PCT/EP2012/072046
Other languages
German (de)
French (fr)
Other versions
WO2013068412A2 (en
Inventor
Thomas Frommelt
Arash RASHIDI
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.)
SGL Carbon SE
Original Assignee
SGL Carbon SE
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 SGL Carbon SE filed Critical SGL Carbon SE
Priority to IN3395CHN2014 priority Critical patent/IN2014CN03395A/en
Priority to JP2014540439A priority patent/JP2014532816A/en
Priority to EP12786943.6A priority patent/EP2776608A2/en
Priority to CN201280055341.8A priority patent/CN103958740A/en
Priority to CA2854928A priority patent/CA2854928A1/en
Publication of WO2013068412A2 publication Critical patent/WO2013068412A2/en
Publication of WO2013068412A3 publication Critical patent/WO2013068412A3/en
Anticipated expiration legal-status Critical
Ceased 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)

Abstract

The invention relates to a cathode block for an aluminum electrolytic cell, in particular based on carbon and/or graphite, having at least one groove for accommodating a bus bar, said groove being arranged on one of the sides of the cathode block and extending in the longitudinal direction of the cathode block, wherein at least one section of the surface of the side of the cathode block opposite the side having the at least one groove is curved outwardly in the shape of an arch as viewed in the cross-section of the cathode block, wherein the vertex of the at least one section curved outwardly in the shape of an arch is arranged over the at least one groove, with respect to the direction extending perpendicularly to the side having the at least one groove in the cross-section of the cathode block. The invention further relates to a cathode block for an aluminum electrolytic cell, in particular based on carbon and/or graphite, which cathode block has a tub-shaped surface as viewed in the longitudinal section of the cathode block, wherein the tub has two edge regions and a bottom region, which is arranged between the edge regions and lowered relative to the edge regions as viewed in the longitudinal direction of the cathode, wherein a respective side wall region is provided between each edge region and the bottom region, which side wall region connects the respective edge region and the bottom region, wherein at least one of the two connecting regions between the edge regions and the side wall regions and/or at least one of the two connecting regions between the bottom region and the side wall regions is curved in the shape of an arch, wherein the at least one section curved in the shape of an arch has a length of more than 2 cm.
PCT/EP2012/072046 2011-11-09 2012-11-07 Cathode block having a domed and/or rounded surface Ceased WO2013068412A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IN3395CHN2014 IN2014CN03395A (en) 2011-11-09 2012-11-07
JP2014540439A JP2014532816A (en) 2011-11-09 2012-11-07 Cathode block with curved and / or rounded surface
EP12786943.6A EP2776608A2 (en) 2011-11-09 2012-11-07 Cathode block having a domed and/or rounded surface
CN201280055341.8A CN103958740A (en) 2011-11-09 2012-11-07 Cathode block having domed and/or rounded surface
CA2854928A CA2854928A1 (en) 2011-11-09 2012-11-07 Cathode block having a domed and/or rounded surface

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110086044 DE102011086044A1 (en) 2011-11-09 2011-11-09 Cathode block with curved and / or rounded surface
DE102011086044.4 2011-11-09

Publications (2)

Publication Number Publication Date
WO2013068412A2 WO2013068412A2 (en) 2013-05-16
WO2013068412A3 true WO2013068412A3 (en) 2013-10-24

Family

ID=47178664

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/072046 Ceased WO2013068412A2 (en) 2011-11-09 2012-11-07 Cathode block having a domed and/or rounded surface

Country Status (7)

Country Link
EP (1) EP2776608A2 (en)
JP (1) JP2014532816A (en)
CN (1) CN103958740A (en)
CA (1) CA2854928A1 (en)
DE (1) DE102011086044A1 (en)
IN (1) IN2014CN03395A (en)
WO (1) WO2013068412A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115142098B (en) * 2022-06-15 2023-06-30 赣州晨光稀土新材料有限公司 Abnormal cathode and electrolytic furnace with stable polar distance adjustment by using abnormal cathode

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067124A (en) * 1958-07-24 1962-12-04 Montedison Spa Furnace for fused-bath electrolysis, particularly for aluminum production from alo
US3492208A (en) * 1965-01-06 1970-01-27 British Aluminium Co Ltd Electrolytic cells and methods of operating same
CH567579A5 (en) * 1970-02-21 1975-10-15 Sigri Elektrographit Gmbh Carbon plate armour for graphite foil - for fusion electrolysis cells
US5043047A (en) * 1989-02-20 1991-08-27 Comalco Aluminum Limited Aluminum smelting cells
US5286353A (en) * 1991-06-04 1994-02-15 Vaw Aluminium A.G. Electrolysis cell and method for the extraction of aluminum
WO1996007773A1 (en) * 1994-09-08 1996-03-14 Moltech Invent S.A. Aluminium electrowinning cell with improved carbon cathode blocks
US6402928B1 (en) * 1997-07-08 2002-06-11 Moltech Invent S.A. Aluminium production cell with an insulating cover having individually removable sections
US20100147678A1 (en) * 2007-03-02 2010-06-17 Northeastern University Aluminum electrolytic cells having heterotypic structured cathode carbon blocks
US20110056826A1 (en) * 2008-10-10 2011-03-10 Naixiang Feng Aluminum electrolytic cell with new type of cathode structure for shortening vertical fluctuations and horizontal fluctuations

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362366A (en) * 1992-04-27 1994-11-08 Moltech Invent S.A. Anode-cathode arrangement for aluminum production cells
DE69809202T2 (en) * 1997-05-23 2003-05-28 Moltech Invent S.A., Luxemburg/Luxembourg ALUMINUM MANUFACTURING CELL AND CATHODE
CN101451250A (en) * 2008-10-24 2009-06-10 中南大学 Curved surface cathode structure for reducing horizontal current of aluminum cell
CN101724859B (en) * 2009-12-15 2011-05-18 中南大学 Method for roasting aluminum electrolytic bath with polymorphic structure cathode
WO2011148347A1 (en) 2010-05-28 2011-12-01 Kan-Nak S.A. Hall-heroult cell cathode design

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067124A (en) * 1958-07-24 1962-12-04 Montedison Spa Furnace for fused-bath electrolysis, particularly for aluminum production from alo
US3492208A (en) * 1965-01-06 1970-01-27 British Aluminium Co Ltd Electrolytic cells and methods of operating same
CH567579A5 (en) * 1970-02-21 1975-10-15 Sigri Elektrographit Gmbh Carbon plate armour for graphite foil - for fusion electrolysis cells
US5043047A (en) * 1989-02-20 1991-08-27 Comalco Aluminum Limited Aluminum smelting cells
US5286353A (en) * 1991-06-04 1994-02-15 Vaw Aluminium A.G. Electrolysis cell and method for the extraction of aluminum
WO1996007773A1 (en) * 1994-09-08 1996-03-14 Moltech Invent S.A. Aluminium electrowinning cell with improved carbon cathode blocks
US6402928B1 (en) * 1997-07-08 2002-06-11 Moltech Invent S.A. Aluminium production cell with an insulating cover having individually removable sections
US20100147678A1 (en) * 2007-03-02 2010-06-17 Northeastern University Aluminum electrolytic cells having heterotypic structured cathode carbon blocks
US20110056826A1 (en) * 2008-10-10 2011-03-10 Naixiang Feng Aluminum electrolytic cell with new type of cathode structure for shortening vertical fluctuations and horizontal fluctuations

Also Published As

Publication number Publication date
DE102011086044A1 (en) 2013-05-16
IN2014CN03395A (en) 2015-07-03
JP2014532816A (en) 2014-12-08
CN103958740A (en) 2014-07-30
CA2854928A1 (en) 2013-05-16
WO2013068412A2 (en) 2013-05-16
EP2776608A2 (en) 2014-09-17

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