Froth flotation method and an apparatus for extracting a valuable substance from a slurry
US8360246B2 · kind B2 · utility
0Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 3, 2010 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Jun 3, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/1462
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a froth flotation method and apparatus an upwardly open circular trough (4) having outlets (5) on the outer periphery of the trough is arranged horizontally above the froth phase (F) so that the trough is coaxial with the flotation vessel (1), and said circular trough is rotated around its center axis. A stationary water pipe (6) is arranged above the trough (4). Fresh water (W) is fed via the water pipe (6) into the trough (4) while the trough is rotating, and the water is let to flow by gravity and centrifugal force from the trough (4) via the outlets (5) into the froth phase (F).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.