Ferrosilicon smelting in a direct current furnace

Patent · Tue Dec 29 00:00:00 EST 1992

OSTI ID:868612

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

---

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

ferrosilicon
smelting
direct
current
furnace
process
alloy
comprises
adding
carbon
source
tailings
comprising
oxides
silicon
iron
substantially
closed
heat
supplied
striking
cathode
electrode
anode
functional
hearth
preferred
embodiment
hollow
feed
direct current
preferred embodiment
process comprises
carbon source
cathode electrode
substantially closed
comprises adding
hollow electrode
silicon alloy
comprising oxide
substantially close
silicon smelting
/75/