EP 0979596 B1 20020717 - SÖDERBERG ELECTRODE FOR MAKING SILICON ALLOYS AND SILICON METAL
Title (en)
SÖDERBERG ELECTRODE FOR MAKING SILICON ALLOYS AND SILICON METAL
Title (de)
SÖDERBERGELEKTRODE ZUR HERSTELLUNG VON SILIZIUM UND SILIZIUMLEGIERUNGEN
Title (fr)
ELECTRODE DE TYPE SÖDERBERG DESTINEE A LA FABRICATION D'ALLIAGES DE SILICIUM ET DE METAUX A BASE DE SILICIUM
Publication
Application
Priority
- CA 9800409 W 19980427
- CA 2204425 A 19970502
- US 95832397 A 19971027
Abstract (en)
[origin: WO9851129A1] The self-baking electrode suitable for use in an electric arc furnace comprises an elongated open ended electrically conductive casing for extending generally vertically within the furnace. A central core made of a heat conductive material is disposed within and spaced from the casing. A framework within is securing the central core to an inner surface of the casing for holding centrally the central core within the casing and for preventing an extrusion of the central core downward. The central core is surrounded by a carbonaceous electrode paste devised to cure into a solid electrode upon heating and to bond to the central core. This self-baking electrode allows the production of silicon metal in a Söderberg-type furnace without any modification to the usual slipping system or addition of another slipping system. An electrode according to the invention allows the same furnace to produce both FeSi of any grade and Si metal without any downtime between the gradual change from one product to the other and each time at the lowest electrode cost.
IPC 1-7
IPC 8 full level
H05B 7/09 (2006.01); H05B 7/107 (2006.01)
CPC (source: EP)
H05B 7/09 (2013.01); H05B 7/107 (2013.01)
Designated contracting state (EPC)
ES FR
DOCDB simple family (publication)
WO 9851129 A1 19981112; AU 7024998 A 19981127; BR 9809347 A 20000704; BR 9809347 B1 20111116; EP 0979596 A1 20000216; EP 0979596 B1 20020717; EP 0979596 B9 20030102; ES 2177000 T3 20021201; IS 1955 B 20041115; IS 5219 A 19991015; NO 315630 B1 20030929; NO 995254 D0 19991027; NO 995254 L 19991229; PL 189321 B1 20050729; PL 336590 A1 20000703; SK 149399 A3 20000814; SK 286447 B6 20081007
DOCDB simple family (application)
CA 9800409 W 19980427; AU 7024998 A 19980427; BR 9809347 A 19980427; EP 98916756 A 19980427; ES 98916756 T 19980427; IS 5219 A 19991015; NO 995254 A 19991027; PL 33659098 A 19980427; SK 149399 A 19980427