C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 35/00 (2006.01) C22C 33/00 (2006.01)
Patent
CA 2089456
FERROSILICON SMELTING IN A DIRECT CURRENT FURNACE ABSTRACT The present invention is a process for smelting ferrosilicon alloy. The process comprises adding a carbon source and tailings comprising oxides of silicon and iron to a substantially closed furnace. Heat is supplied to the furnace by striking a direct current arc between a cathode electrode and an anode functional hearth. In a preferred embodiment of the present invention, the cathode electrode is hollow and feed to the substantially closed furnace is through the hollow electrode.
Dosaj Vishu Dutt
May James Barratt
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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