Process for stabilizing lube base stocks derived from bright stock
US4627908A · kind A · utility
359Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1985 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Oct 24, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for stabilizing a lubricating oil base stock derived from a nitro-aromatic-containing hydrocracked bright stock, comprising a two-step stabilizing process utilizing hydrodenitrification followed by mild hydrofinishing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.