Recovery of bitumen from bituminous oil-in-water emulsions
US4456533A · kind A · utility
19Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1983 |
| Grant date | Jun 26, 1984 |
| Priority date | — |
| Expiry date | May 4, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Bitumen recovery from a tar sands emulsion or other bituminous oil-in-water emulsion is increased by milling the emulsion for a time sufficient to cause a bitumen-rich liquid fraction to rise to the surface, and separating such fraction. Addition of water to the starting emulsion or during milling further enhances the recovery of bitumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.