Enhancing fine capture in paraffinic froth treatment process
US9475994B2 · kind B2 · utility
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17References
12Claims
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Key dates
| Filing date | Mar 9, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Nov 6, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/805
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A modified paraffinic froth treatment (PFT) process is described, in which a fine tailings stream obtained from a water extraction process practiced on oil sands is added during the treatment process. This modified process may be useful as a treatment for the fine tailings stream, allowing for the flocculation of the fines, thus reducing the volume of such fine tailings. The modified process may also be useful in that the fine tailings stream can be used as a supplement or a replacement for dilution water, thus eliminating or reducing the need for dilution water in the PFT process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.