Process for producing an upgraded sulfide mineral concentrate from an ore containing sulfide mineral and silicate clay
US4597857A · kind A · utility
3Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Apr 8, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for separating metal sulfide minerals from an ore containing metal sulfide minerals and silicate clays by subjecting the finely divided ore to anionic flotation using an anionic collector to produce a metal sulfide mineral concentrate containing silicate clay, separating the anionic collector from the concentrate and subjecting the concentrate to cationic flotation to selectively float silicate and produce as a residual product a metal sulfide mineral concentrate containing reduced amounts of silicate clay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.