Supercritical extraction process
US4482453A · kind A · utility
43Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1982 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Aug 17, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G53/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The recovery of hydrocarbon values from high metals content feeds can be carried out more efficiently via supercritical extraction with recycle of a portion of the asphalt product and proper control of the use of countercurrent solvent flow to said extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.