Method of floating calcium carbonate ore and flotation reagent therefor
US5720873A · kind A · utility
13Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Mar 1, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/07
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a method of floating calcium carbonate ore containing silicates as impurities. Floatation is performed in the presence of a quaternary ammonium compound and an alkylene oxide adduct of an amine compound. The silicate being concentrated in the float.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.