Centrifuge process for dewatering oil sands tailings
US9656189B2 · kind B2 · utility
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31Claims
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Key dates
| Filing date | Aug 24, 2012 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Aug 24, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for dewatering oil sands tailings is provided, comprising providing a tailings feed having a solids content in the range of about 10 wt % to about 45 wt %; adding a flocculant to the tailings feed and mixing the tailings feed and flocculant to form flocs; and centrifuging the flocculated tailings feed to produce a centrate having a solids content of less than about 3 wt % and a cake having a solids content of at least about 50 wt %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.