CA2101240A1 - Low temperature separation of bitumen from oilsands - Google Patents
Low temperature separation of bitumen from oilsandsInfo
- Publication number
- CA2101240A1 CA2101240A1 CA 2101240 CA2101240A CA2101240A1 CA 2101240 A1 CA2101240 A1 CA 2101240A1 CA 2101240 CA2101240 CA 2101240 CA 2101240 A CA2101240 A CA 2101240A CA 2101240 A1 CA2101240 A1 CA 2101240A1
- Authority
- CA
- Canada
- Prior art keywords
- bitumen
- sodium hydroxide
- hydroxide solution
- aqueous phase
- oilsands
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Bitumen is recovered from oil sands in an ambient temperature procedure in which the oil sands first are subjected to attrition in the presence of an aqueous sodium hydroxide solution to form a slurry of pH at least about 11.5. Sand, freed from bitumen, usually is separated from the slurry, which then is diluted with further quantities of aqueous sodium hydroxide solution while maintaining the pH value, so as to provide the bitumen in a form which can be separated from the aqueous phase by flotation. The bitumen is floated off from the aqueous phase comprising a clay suspension and then forwarded to an upgrading operation. A second bitumen flotation also may be effected following addition of calcium hydroxide to the remaining aqueous phase. The clay suspension may be flocculated and dewatered and the resulting sodium hydroxide solution recycled to the attrition and/or dilution steps.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB929215651A GB9215651D0 (en) | 1992-07-23 | 1992-07-23 | Low temperature separation of bitumen from oilsands |
GB9215651.2 | 1992-07-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2101240A1 true CA2101240A1 (en) | 1994-01-24 |
CA2101240C CA2101240C (en) | 1999-12-14 |
Family
ID=10719166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2101240 Expired - Fee Related CA2101240C (en) | 1992-07-23 | 1993-07-23 | Low temperature separation of bitumen from oilsands |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA2101240C (en) |
GB (1) | GB9215651D0 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7404903B2 (en) | 2006-02-03 | 2008-07-29 | Rj Oil Sands Inc. | Drill cuttings treatment system |
US8137566B2 (en) | 2007-07-16 | 2012-03-20 | Rj Oil Sands Inc. | Recovery of tailings ponds |
WO2018027334A1 (en) * | 2016-08-11 | 2018-02-15 | Schwarze Fraile Juan Francisco | Method for extracting organic carbon and/or bitumen from ores of metal sulfides or polymetal sulfides |
US10745623B2 (en) | 2016-01-29 | 2020-08-18 | Ecolab Usa Inc. | Methods for enhancing hydrocarbon recovery from oil sands |
-
1992
- 1992-07-23 GB GB929215651A patent/GB9215651D0/en active Pending
-
1993
- 1993-07-23 CA CA 2101240 patent/CA2101240C/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7404903B2 (en) | 2006-02-03 | 2008-07-29 | Rj Oil Sands Inc. | Drill cuttings treatment system |
US8137566B2 (en) | 2007-07-16 | 2012-03-20 | Rj Oil Sands Inc. | Recovery of tailings ponds |
US10745623B2 (en) | 2016-01-29 | 2020-08-18 | Ecolab Usa Inc. | Methods for enhancing hydrocarbon recovery from oil sands |
WO2018027334A1 (en) * | 2016-08-11 | 2018-02-15 | Schwarze Fraile Juan Francisco | Method for extracting organic carbon and/or bitumen from ores of metal sulfides or polymetal sulfides |
AU2017310348B2 (en) * | 2016-08-11 | 2021-03-04 | Juan Francisco SCHWARZE FRAILE | Method for extracting organic carbon and/or bitumen from ores of metal sulfides or polymetal sulfides |
Also Published As
Publication number | Publication date |
---|---|
GB9215651D0 (en) | 1992-09-09 |
CA2101240C (en) | 1999-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |