Phosphate ore triple float
US4289612A · kind A · utility
3Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1980 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Jun 11, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D1/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the improved beneficiation of phosphate ore in which the double float cationic (i.e., amine) floatation step is performed in two stages instead of the standard single stage, and which permits recovery of approximately two-thirds of the phosphate values that were previously lost in the amine tailings of the standard single stage process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.