Recovery of hydrocarbons from acid sludge
US5049256A · kind A · utility
12Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1990 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Feb 6, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrocarbons are recovered from acid sludge by mixing the sludge with methyl ethyl ketone and base. A hydrocarbon-rich methyl ethyl ketone stream and a solids-containing stream are separated from the mixture, and a hydrocarbon stream is separated from the hydrocarbon-rich methyl ethyl ketone stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.