Novel technique for rendering oily sludges environmentally acceptable
US4842715A · kind A · utility
21Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1987 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Dec 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/952
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process is disclosed for separating an organic material from a composition comprising said organic material intermixed with particulate solids, the process comprising advancing a light hydrocarbon fluid through said particulate solids at an effective rate to drive at least some of said organic material from said particulate solids, adding water to said composition containing particulate solids and residual organic material to produce a second composition, and adding an oxidizing agent to said second composition in an amount sufficient to remove substantially all of the residual organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.