Membrane washing apparatus for flotation device
US5511669A · kind A · utility
5Cited by
7References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A flotation device (1) which includes a tank (2) to contain a slurry (3) incorporating minerals which are to be extracted. Aeration of the slurry (3) by suitable structure in the device produces a zone (11) of mineralised froth above the slurry (3). A launder (15) directs the mineralised froth away from the tank (2). At least one porous diffusion surface (16) in direct contact with the froth dispenses a washing liquid directly into the froth zone (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.