Process for producing lubrication oil of high viscosity index from shale oils
US4699707A · kind A · utility
11Cited by
23References
74Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1985 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Sep 25, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/043
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Full-range shale oils or fractions thereof, after hydrotreating, are hydrodewaxed and then hydrogenated to produce lubricating oil fractions boiling above 650.degree. F., having a pour point at or below +10.degree. F., and a viscosity index of at least 95.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.