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 furnaceInfo
- 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
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).
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)
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)
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 |
-
1998
- 1998-04-27 BR BRPI9809347-9A patent/BR9809347B1/en not_active IP Right Cessation
- 1998-04-27 PL PL98336590A patent/PL189321B1/en unknown
- 1998-04-27 AU AU70249/98A patent/AU7024998A/en not_active Abandoned
- 1998-04-27 EP EP98916756A patent/EP0979596B9/en not_active Expired - Lifetime
- 1998-04-27 WO PCT/CA1998/000409 patent/WO1998051129A1/en active IP Right Grant
- 1998-04-27 ES ES98916756T patent/ES2177000T3/en not_active Expired - Lifetime
- 1998-04-27 SK SK1493-99A patent/SK286447B6/en not_active IP Right Cessation
-
1999
- 1999-10-15 IS IS5219A patent/IS1955B/en unknown
- 1999-10-27 NO NO19995254A patent/NO315630B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO995254D0 (en) | 1999-10-27 |
EP0979596A1 (en) | 2000-02-16 |
SK149399A3 (en) | 2000-08-14 |
AU7024998A (en) | 1998-11-27 |
NO315630B1 (en) | 2003-09-29 |
WO1998051129A1 (en) | 1998-11-12 |
ES2177000T3 (en) | 2002-12-01 |
PL336590A1 (en) | 2000-07-03 |
IS1955B (en) | 2004-11-15 |
SK286447B6 (en) | 2008-10-07 |
PL189321B1 (en) | 2005-07-29 |
NO995254L (en) | 1999-12-29 |
EP0979596B9 (en) | 2003-01-02 |
EP0979596B1 (en) | 2002-07-17 |
BR9809347B1 (en) | 2011-11-16 |
IS5219A (en) | 1999-10-15 |
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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) |