Ferrosilicon smelting in a direct current furnace

Patent · 28 December 1992

OSTI ID:868612

Dosaj, Vishu D ^[1]; May, James B ^[1]

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1. Midland, MI

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.

• Research Organization: Dow Corning Corp
• DOE Contract Number: AC04-87ID12624
• Assignee: Dow Corning Corporation (Midland, MI)
• Patent Number(s): US 5174810
• Application Number: 07/837,389
• OSTI ID: 868612
• Country of Publication: United States
• Language: English

Related Subjects

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adding
alloy
anode
carbon
carbon source
cathode
cathode electrode
closed
comprises
comprises adding
comprising
comprising oxide
current
direct
direct current
electrode
embodiment
feed
ferrosilicon
functional
furnace
hearth
heat
hollow
hollow electrode
iron
oxides
preferred
preferred embodiment
process
process comprises
silicon
silicon alloy
silicon smelting
smelting
source
striking
substantially
substantially close
substantially closed
supplied
tailings