Process using carbonate reagent for recovering vanadium from cokes and ashes derived from heavy oils
US4536374A · kind A · utility
8Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1984 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | May 8, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Vanadium values are recovered from sulphur-containing cokes and ashes derived from heavy oils by a novel process comprising heating in the presence of alkali metal carbonate, contacting the resulting solid residue with water to form a leach and recovering the vanadium values dissolved therein. The heating step solubilizes only alkali metal vanadate and thus the leach solution is substantially free of contaminating substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.