BR0215323A - Graffiti Cathode Blocks - Google Patents

Graffiti Cathode Blocks

Info

Publication number
BR0215323A
BR0215323A BR0215323-8A BR0215323A BR0215323A BR 0215323 A BR0215323 A BR 0215323A BR 0215323 A BR0215323 A BR 0215323A BR 0215323 A BR0215323 A BR 0215323A
Authority
BR
Brazil
Prior art keywords
cathode blocks
graffiti
blocks
aluminum
production
Prior art date
Application number
BR0215323-8A
Other languages
Portuguese (pt)
Inventor
Johann Daimer
Frank Hiltmann
Joerg Mittag
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 BR0215323A publication Critical patent/BR0215323A/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

Abstract

"BLOCOS CATóDICOS GRAFITADOS". A presente invenção se refere a blocos catódicos grafitados para a produção de alumínio através da redução eletrolítica de óxido de alumínio num banho de criolita fundida, caracterizados pelo fato de que os blocos catódicos apresentam uma resistência elétrica com perfil em forma de V ao longo de seu comprimento, sendo que a resistência no centro dos blocos catódicos apresenta um ponto de descontinuidade e aumenta em direção às extremidades; a um procedimento para a fabricação desses blocos catódicos grafitados e à sua utilização para a produção de alumínio."GRAPHIC CATHEDIC BLOCKS". The present invention relates to graffiti cathode blocks for the production of aluminum by electrolytic reduction of aluminum oxide in a fused cryolite bath, characterized in that the cathode blocks have a V-shaped electrical resistance along their surface. length, where the resistance at the center of the cathode blocks has a point of discontinuity and increases toward the ends; a procedure for the manufacture of these graffiti cathode blocks and their use for the production of aluminum.

BR0215323-8A 2001-12-28 2002-12-19 Graffiti Cathode Blocks BR0215323A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001164008 DE10164008C1 (en) 2001-12-28 2001-12-28 Graphitized cathode block, used for producing aluminum by electrolytically reducing aluminum oxide in a bath of molten cryolite, is composed of two parts and has a V-shaped profile of its electrical resistance over its length
PCT/EP2002/014548 WO2003056068A2 (en) 2001-12-28 2002-12-19 Graphitized cathode blocks

Publications (1)

Publication Number Publication Date
BR0215323A true BR0215323A (en) 2004-10-19

Family

ID=7710902

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0215323-8A BR0215323A (en) 2001-12-28 2002-12-19 Graffiti Cathode Blocks

Country Status (8)

Country Link
EP (1) EP1481115B1 (en)
AR (1) AR037912A1 (en)
AU (1) AU2002361174A1 (en)
BR (1) BR0215323A (en)
CA (1) CA2470753A1 (en)
DE (2) DE10164008C1 (en)
PL (1) PL201672B1 (en)
WO (1) WO2003056068A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076302A1 (en) 2011-05-23 2013-01-03 Sgl Carbon Se Electrolysis cell and cathode with irregular surface profiling

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728109A (en) * 1952-06-06 1955-12-27 Savoie Electrodes Refract Method of making cathodic electrodes for electrolysis furnaces
US4194959A (en) * 1977-11-23 1980-03-25 Alcan Research And Development Limited Electrolytic reduction cells
NO157462C (en) * 1985-10-24 1988-03-23 Hydro Aluminium As LAMINATED CARBON CATHOD FOR CELLS-MELT-ELECTROLYTIC ALUMINUM PREPARATION.
US4795540A (en) * 1987-05-19 1989-01-03 Comalco Aluminum, Ltd. Slotted cathode collector bar for electrolyte reduction cell
FR2789091B1 (en) * 1999-02-02 2001-03-09 Carbone Savoie GRAPHITE CATHODE FOR ALUMINUM ELECTROLYSIS
EP1233083A1 (en) * 2001-02-14 2002-08-21 Alcan Technology & Management AG Carbon bottom of electrolysis cell used in the production of aluminum

Also Published As

Publication number Publication date
EP1481115A2 (en) 2004-12-01
DE10164008C1 (en) 2003-04-30
PL369969A1 (en) 2005-05-02
CA2470753A1 (en) 2003-07-10
AU2002361174A1 (en) 2003-07-15
DE50205232D1 (en) 2006-01-12
AR037912A1 (en) 2004-12-22
EP1481115B1 (en) 2005-12-07
WO2003056068A2 (en) 2003-07-10
WO2003056068A3 (en) 2004-09-30
PL201672B1 (en) 2009-04-30

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A 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.