Method for recovering bitumen from tar sands
US9469813B2 · kind B2 · utility
1Cited by
4References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 28, 2014 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Dec 3, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G1/047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method for recovering bitumen from tar sands, according to which sands are brought into contact with at least one partially hydrolyzed poly(vinyl acetate) (co)polymer A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.