Ferrosilicon smelting in a direct current furnace

Patent · Tue Dec 29 04:00:00 EST 1992

OSTI ID:7234013

Dosaj, V D; May, J B

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. 1 figure.

• Research Organization: Dow Corning Corp
• DOE Contract Number: AC04-87ID12624
• Assignee: Dow Corning Corp., Midland, MI (United States)
• Patent Number(s): A; US 5174810
• Application Number: PPN: US 7-837389
• OSTI ID: 7234013
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
ALLOYS
ARC FURNACES
CHALCOGENIDES
ELECTRIC FURNACES
FURNACES
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
OXIDES
OXYGEN COMPOUNDS
PRODUCTION
SILICON ALLOYS
SILICON COMPOUNDS
SILICON OXIDES
SMELTING
TRANSITION ELEMENT COMPOUNDS