Phosphate beneficiation process
US5147528A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Apr 8, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the froth flotation separation of phosphate containing minerals by the use of a new collector agent is described. The new phosphate collector agent is prepared by mixing a fatty acid, tall oil pitch, an amine, and optionally sarcosine with fuel or furnace oil, and subsequently oxidizing the mixture by known methods. The new phosphate collector agent is added to the conditioned slurry of the ground and deslimed phosphate containing ore. The slurry is then subjected to froth flotastion in one or more stages to collect the phosphate concentrate in the froth. The phosphate collector agent is also effective in recovering phosphates from slime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.