Process for recovering hydrocarbons from a diatomite-type ore
US4374023A · kind A · utility
19Cited by
12References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1981 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Oct 26, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for recovering hydrocarbons from a diatomite-type ore which comprises contacting the diatomite ore with a C.sub.4 -C.sub.10 alcohol and thereafter contacting the diatomite ore-alcohol mixture with an aqueous alkaline solution to separate a hydrocarbon-alcohol phase and an alkaline aqueous phase containing the stripped diatomite ore. Thereafter, the alcohol is distilled off from the hydrocarbon phase and recycled back into the initial process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.