Deposition of flocculated tailings
US12378146B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Oct 11, 2022 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Aug 31, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17D3/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for dewatering tailings having a solids content in the range of about 10 wt % to about 70 wt % is provided comprising fully flocculating the tailings by adding an effective amount of a polymeric flocculant to the tailings and mixing the polymeric flocculant and tailings in a mixing device to form fully flocculated tailings having a minimized capillary suction time (CST) and discharging the fully flocculated tailings into a deposition area at a discharge velocity of substantially zero to minimize further mixing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.