Recovery of bitumen from tar sands sludge using additional water
US4392941A · kind A · utility
19Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Jun 11, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for the recovery of bitumen from a sludge. The sludge is diluted with water and subjected to high-shear agitation and aeration and the sludge settled to obtain an upper bitumen-containing froth layer and a lower sludge layer of reduced bitumen content. The recovery of bitumen is increased over that obtained with aeration and mixing with mild agitation or with aeration alone or with agitation alone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.