Froth flotation of fine particles
US5304317A · kind A · utility
9Cited by
13References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1992 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Nov 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Additive composition for use in separating particles of a desired material from particles of an undesired material in a froth flotation process using a frother. The composition includes an alkylated polymer of vinylpyrrolidone and a liquid carrier comprising the frother.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.