Process and composition for the froth flotation beneficiation of iron minerals from iron ores
US4795578A · kind A · utility
3Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Dec 21, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and composition are provided for the froth flotation beneficiation of iron minerals from iron ores containing silicate and phosphate minerals, comprising as collectors a combination of a primary amine and a nitrogen compound containing an anionic group selected from methylene carboxylic acid, ethylene phosphoric acid and methylene phosphonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.