Metals removal with a light hydrocarbon and an organophosphorous compound
US4518484A · kind A · utility
10Cited by
25References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1984 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Feb 16, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G21/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The process described uses a C.sub.2 -C.sub.10 hydrocarbon solvent and an organophosphorous compound to extract metals from metal containing oils. Preferably, the extraction is performed above the critical conditions of the solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.