Ore flotation
US5053119A · kind A · utility
6Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Dec 28, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Ores of metal oxides and oxide-like compounds such as chromite and pyrochlore are beneficiated by froth flotation in the presence of substituted amino phosphonic acids or salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.