Process for refining used lubricating oil
US9938471B2 · kind B2 · utility
0Cited by
2References
18Claims
0Family size
Inventor
Key dates
| Filing date | Aug 17, 2015 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jan 2, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1074
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for taking non-treated re-refined vacuum gas oil and pretreating the product before the product is hydrotreated and used for fuel oil blends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.