Enhanced bitumen flotation
US7727385B2 · kind B2 · utility
2Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2007 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Aug 24, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/1468
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mounted thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for aerating a stream of middlings withdrawn from the separating vessel and reintroducing the aerated middlings back to the separating vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.