Beneficiation of froth obtained from tar sands sludge
US4401552A · kind A · utility
17Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1981 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Apr 13, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improvement in the treatment of sludge recovered from a pond containing tailings from a water extraction process of tar sands characterized in that the froth produced from a treatment of the sludge is diluted with water which is at an ambient temperature, and the diluted froth is agitated and aerated vigorously for a short time to obtain an upper froth layer which contains most of the bitumen and substantially reduced amounts of mineral and water. The upper froth layer is obtained by, e.g., skimming it from the froth produced by the agitation and aeration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.