Method to extract bitumen from oil sands
US9790431B2 · kind B2 · utility
1Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2013 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Dec 10, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an improved bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a glycol ether amine described by the following structure: R—(OC2H4)x—NH2 or R—(OCH2CH(CH3))y— NH2 wherein R is a C1 to C6 alkyl group or a phenyl group and x and y independently are 1 to 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.