Froth flotation of fine particles
US5217604A · kind A · utility
3Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Mar 25, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Particles of a desired mineral are separated from an aqueous slurry containing the desired particles and particles of an undesired mineral by adding a collector, a frother and an alkylated polymer of vinylpyrrolidone, and then floating off the desired particles in a froth flotation cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.