BR0215325A - Procedure for the manufacture of cathode blocks - Google Patents

Procedure for the manufacture of cathode blocks

Info

Publication number
BR0215325A
BR0215325A BR0215325-4A BR0215325A BR0215325A BR 0215325 A BR0215325 A BR 0215325A BR 0215325 A BR0215325 A BR 0215325A BR 0215325 A BR0215325 A BR 0215325A
Authority
BR
Brazil
Prior art keywords
procedure
manufacture
cathode blocks
cathode
blocks
Prior art date
Application number
BR0215325-4A
Other languages
Portuguese (pt)
Inventor
Johann Daimer
Frank Hiltmann
Joerg Mittag
Philippe Beghein
Original Assignee
Sgl Carbon Ag
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 Ag filed Critical Sgl Carbon Ag
Publication of BR0215325A publication Critical patent/BR0215325A/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

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

"PROCEDIMENTO PARA A FABRICAçãO DE BLOCOS CATóDICOS". A presente invenção se refere a um procedimento para a fabricação de blocos catódicos grafitados, sendo que para o processo de grafitização longitudinal é empregado um bloco catódico carbonizado, cuja seção transversal é maior nas extremidades do bloco do que no centro, e sendo que pelo menos uma parte do material grafitado é removido das extremidades após a grafitização; a blocos catódicos fabricados em conformidade com este procedimento, bem como à sua utilização para a produção eletrolítica de alumínio."PROCEDURE FOR MANUFACTURING CATHODIC BLOCKS" The present invention relates to a procedure for the manufacture of graffiti cathode blocks. For the longitudinal graffiti process a carbonized cathode block is employed, the cross section of which is larger at the ends of the block than at the center, and at least some of the graphite material is removed from the edges after graphitization; cathode blocks manufactured in accordance with this procedure and their use for the electrolytic production of aluminum.

BR0215325-4A 2001-12-28 2002-12-19 Procedure for the manufacture of cathode blocks BR0215325A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001164009 DE10164009B4 (en) 2001-12-28 2001-12-28 Process for the preparation of cathode blocks
PCT/EP2002/014547 WO2003056067A2 (en) 2001-12-28 2002-12-19 Method for the production of cathode blocks

Publications (1)

Publication Number Publication Date
BR0215325A true BR0215325A (en) 2005-08-30

Family

ID=7710903

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0215325-4A BR0215325A (en) 2001-12-28 2002-12-19 Procedure for the manufacture of cathode blocks

Country Status (8)

Country Link
EP (1) EP1499757B1 (en)
AR (1) AR037913A1 (en)
AU (1) AU2002352257A1 (en)
BR (1) BR0215325A (en)
CA (1) CA2470742A1 (en)
DE (2) DE10164009B4 (en)
PL (1) PL201883B1 (en)
WO (1) WO2003056067A2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789091B1 (en) * 1999-02-02 2001-03-09 Carbone Savoie GRAPHITE CATHODE FOR ALUMINUM ELECTROLYSIS
US20020000373A1 (en) * 2000-05-22 2002-01-03 Hirofumi Ninomiya Graphitized cathode block for aluminum smelting
JP2002266091A (en) * 2001-03-09 2002-09-18 Sec Corp Graphit cathode block for smelting aluminum

Also Published As

Publication number Publication date
EP1499757A2 (en) 2005-01-26
DE50212919D1 (en) 2008-11-27
AU2002352257A1 (en) 2003-07-15
WO2003056067A3 (en) 2004-11-11
AR037913A1 (en) 2004-12-22
AU2002352257A8 (en) 2003-07-15
PL373314A1 (en) 2005-08-22
WO2003056067A2 (en) 2003-07-10
DE10164009B4 (en) 2005-04-07
PL201883B1 (en) 2009-05-29
DE10164009A1 (en) 2003-08-07
CA2470742A1 (en) 2003-07-10
EP1499757B1 (en) 2008-10-15

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A E 9A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2125 DE 27/09/2011.