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U.S. Department of Energy
Office of Scientific and Technical Information

Salt roasting of vanadium ore in the presence of carbon

Patent ·
OSTI ID:5979783
A process is provided for extracting vanadium values from a vanadium-bearing ore in which a carbonaceous material is added to a salt roast mixture containing ore and an alkali metal salt, e.g., NaCl. The mixture is subjected to roast temperatures (e.g., 825/sup 0/ C.) for a period of time sufficient to burn off substantially all of the carbon in the mixture. The carbonaceous material is preferably a vanadium-containing carbon source, e.g., residue from the combustion of heavy petroleum oil.
Assignee:
Union Carbide Corporation
Patent Number(s):
US 4477416
OSTI ID:
5979783
Country of Publication:
United States
Language:
English