Collectors for treating tailings
US11590514B2 · kind B2 · utility
0Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2019 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Aug 29, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating and dewatering tailings comprising fine clay minerals, fine rock-forming minerals and water is provided, comprising treating the tailings with a sufficient amount of a collector to modify the surface properties of both the fine clays and rock-forming minerals; subjecting the treated tailings to froth flotation to form a fine clays and rock-forming minerals froth layer; and recovering the froth layer and subjecting it to dewatering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.