Method for clarifying slimes
US4295971A · kind A · utility
3Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1980 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Aug 14, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/5236
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention provides a method for clarifying slimes. This method comprises the steps of treating a slime with a unique flocculant and separating the clarified slime from the aggregated floccules. The flocculant is a stabilized aqueous-base magnetic colloid that contains colloidal magnetic particles and at least one surfactant, such as dodecylamine. The magnetic colloid becomes unstable and the magnetic particles thereof irreversibly flocculate when the magnetic colloid is sufficiently diluted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.