Solvent for refining of residues
US4592831A · kind A · utility
15Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1984 |
| Grant date | Jun 3, 1986 |
| Priority date | — |
| Expiry date | Dec 12, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G21/003
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Solvent refining of a residual oil is accomplished with a refining solvent containing methanol and propanol, preferably isopropanol. The solvent produces high yields of a high quality refined oil, as well as a pumpable pitch fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.