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BR9809347A - Self-baking sederberg electrode to produce silicon alloys and silicon metal and process to form it "in situ" in an electric arc furnace - Google Patents

Self-baking sederberg electrode to produce silicon alloys and silicon metal and process to form it "in situ" in an electric arc furnace

Info

Publication number
BR9809347A
BR9809347A BR9809347-9A BR9809347A BR9809347A BR 9809347 A BR9809347 A BR 9809347A BR 9809347 A BR9809347 A BR 9809347A BR 9809347 A BR9809347 A BR 9809347A
Authority
BR
Brazil
Prior art keywords
central core
electrode
housing
situ
self
Prior art date
Application number
BR9809347-9A
Other languages
Portuguese (pt)
Other versions
BR9809347B1 (en
Inventor
Rene Boisvert
Jacques Dostaler
Jacques Dubois
Dieter W Ksinsik
Original Assignee
Skw Canada Inc
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
Priority claimed from CA002204425A external-priority patent/CA2204425A1/en
Application filed by Skw Canada Inc filed Critical Skw Canada Inc
Publication of BR9809347A publication Critical patent/BR9809347A/en
Publication of BR9809347B1 publication Critical patent/BR9809347B1/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H05B7/107—Mountings, supports, terminals or arrangements for feeding or guiding electrodes specially adapted for self-baking electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/06—Electrodes
    • H05B7/08—Electrodes non-consumable
    • H05B7/085—Electrodes non-consumable mainly consisting of carbon
    • H05B7/09—Self-baking electrodes, e.g. Söderberg type electrodes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Furnace Details (AREA)
  • Silicon Compounds (AREA)
  • Discharge Heating (AREA)
  • Ceramic Products (AREA)

Abstract

<B>ELETRODO TIPO SÍDERBERG DE AUTOCOZIMENTO PARA PRODUZIR LIGAS DE SILìCIO E METAL DE SILìCIO E PROCESSO PARA FORMá-LO 'IN SITU' EM UM FORNO DE ARCO ELéTRICO<D>, compreendendo um invólucro eletricamente condutor de extremidade aberta alongado (30) que se estende geralmente no sentido vertical dentro do forno (2) em uso; um núcleo central (32) disposto dentro e espaçado do invólucro (30), sendo que o núcleo central (32) é feito de um material condutor de calor; pelo menos uma estrutura (37) dentro do invólucro (30), sendo que a estrutura (37) fixa o núcleo central (32) em uma superfície interna do invólucro (30) para prender centralmente o núcleo central (32) dentro do invólucro (30) e para impedir uma extrusão do núcleo central (32) para baixo; e uma pasta de eletrodo carbonácea (36) que circunda o núcleo central (32), sendo que a pasta (36) deve curar de modo a formar um eletrodo sólido com o aquecimento e ficar unida ao núcleo central (32).<B> SIDDERBERG SELF-COOKING ELECTRODE TO PRODUCE SILICIO AND SILICON METAL ALLOYS AND PROCESS TO FORM IT 'IN SITU' IN AN ELECTRIC ARC OVEN <D>, comprising an elongated open end electrically conductive housing (30) generally extends vertically in the oven (2) in use; a central core (32) disposed within and spaced from the housing (30), the central core (32) being made of a heat conducting material; at least one structure (37) within the housing (30), the structure (37) fixing the central core (32) to an internal surface of the housing (30) to centrally secure the central core (32) within the housing ( 30) and to prevent an extrusion of the central core (32) downwards; and a carbonaceous electrode paste (36) that surrounds the central core (32), the paste (36) must cure to form a solid electrode with heating and be joined to the central core (32).

BRPI9809347-9A 1997-05-02 1998-04-27 self-sintering sinterberg type electrode to produce silicon alloys and silicon metal and process to form it in situ in an electric arc furnace. BR9809347B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002204425A CA2204425A1 (en) 1997-05-02 1997-05-02 Electrode for silicon alloys and silicon metal
US08/958,323 US5854807A (en) 1997-05-02 1997-10-27 Electrode for silicon alloys and silicon metal
PCT/CA1998/000409 WO1998051129A1 (en) 1997-05-02 1998-04-27 Electrode type söderberg for making silicon alloys and silicon metal

Publications (2)

Publication Number Publication Date
BR9809347A true BR9809347A (en) 2000-07-04
BR9809347B1 BR9809347B1 (en) 2011-11-16

Family

ID=25679299

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9809347-9A BR9809347B1 (en) 1997-05-02 1998-04-27 self-sintering sinterberg type electrode to produce silicon alloys and silicon metal and process to form it in situ in an electric arc furnace.

Country Status (9)

Country Link
EP (1) EP0979596B9 (en)
AU (1) AU7024998A (en)
BR (1) BR9809347B1 (en)
ES (1) ES2177000T3 (en)
IS (1) IS1955B (en)
NO (1) NO315630B1 (en)
PL (1) PL189321B1 (en)
SK (1) SK286447B6 (en)
WO (1) WO1998051129A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6452956B1 (en) * 1998-08-25 2002-09-17 Marcel Sciarone Soderberg-type composite electrode for arc smelting furnace

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB227822A (en) * 1924-01-17 1925-08-13 Norske Elektrokemisk Ind As Improvements in or relating to electrodes for electric furnaces
US4133968A (en) * 1977-05-26 1979-01-09 Frolov Jury F Apparatus for forming self-sintering electrodes
DE3840827A1 (en) * 1988-12-03 1990-06-07 Hoechst Ag ELECTROTHERMIC REDUCTION STOVES
DE4010353A1 (en) * 1990-03-28 1991-10-02 Mannesmann Ag Operating metallurgical furnace with self-baking electrode - lockable traction rod within electrode
FR2724219B1 (en) * 1994-09-05 1996-10-25 Pechiney Electrometallurgie DEVICE FOR MOUNTING A SELF-COOKING COMPOSITE ELECTRODE FOR ELECTRIC ARC OVEN

Also Published As

Publication number Publication date
AU7024998A (en) 1998-11-27
PL336590A1 (en) 2000-07-03
EP0979596B1 (en) 2002-07-17
NO315630B1 (en) 2003-09-29
WO1998051129A1 (en) 1998-11-12
SK149399A3 (en) 2000-08-14
IS1955B (en) 2004-11-15
ES2177000T3 (en) 2002-12-01
EP0979596A1 (en) 2000-02-16
NO995254D0 (en) 1999-10-27
EP0979596B9 (en) 2003-01-02
PL189321B1 (en) 2005-07-29
IS5219A (en) 1999-10-15
SK286447B6 (en) 2008-10-07
BR9809347B1 (en) 2011-11-16
NO995254L (en) 1999-12-29

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 16/11/2011, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)