Ferrosilicon smelting in a direct current furnace

Details Ferrosilicon smelting in a direct current furnace Ferrosilicon smelting in a direct current furnace

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.

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