Upgrading fuel fractions in a re-refined oil process
US4431523A · kind A · utility
7Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1983 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Jun 24, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a process for the re-refinement of used lubricating oil containing fuel fraction, an upgraded fuel fraction is provided by combining fuel fraction with demetallized lubricating oil prior to the hydrotreatment stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.