Solvent extraction
US4548711A · kind A · utility
19Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1982 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Sep 2, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/0488
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The upgrading of heavy, high-metals content oils is optimized when certain solvent mixing and countercurrent flow techniques and/or certain solvent/feed ratios and/or certain extractor internals and extraction residence times are employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.