Demulsification of bitumen emulsions using cationic polymers
Patent
·
OSTI ID:5941401
A process for recovering bitumen from oil-in-water (O/w) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are cationic polymers of equal to or greater than about 2,000 molecular weight obtained by the reaction of polyalkoxydiamines with epihalohydrins. To resolve the bituminous petroleum emulsions, the process is carried out between 25/sup 0/ and 160/sup 0/ C wherein the demulsifier of the invention is contacted with the bituminous emulsion.
- Assignee:
- Texaco Canada Resources Inc (Canada); Texaco Inc
- Patent Number(s):
- US 4382852
- OSTI ID:
- 5941401
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
040400* -- Oil Shales & Tar Sands-- Oil Production
Recovery
& Refining
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CATIONS
CHARGED PARTICLES
COLLOIDS
DEMULSIFICATION
DISPERSIONS
EMULSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
IONS
MATERIALS
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
POLYMERS
RECOVERY
TAR
040400* -- Oil Shales & Tar Sands-- Oil Production
Recovery
& Refining
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CATIONS
CHARGED PARTICLES
COLLOIDS
DEMULSIFICATION
DISPERSIONS
EMULSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
IONS
MATERIALS
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
POLYMERS
RECOVERY
TAR