Salt roasting of vanadium ore in the presence of carbon
US4477416A · kind A · utility
9Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B34/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
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.degree. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.