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Demulsification of bitumen emulsions

Patent ·
OSTI ID:5463170
; ; ;
A process for recovering bitumen from oil-in-water (o/w) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are hydrophilic polyurethanes wherein the ethylene oxide content of the polyol portion of the polyurethane is greater than about 70% by weight. To resolve the bituminous petroleum emulsions, the process is carried out between 25 and 1200 C wherein the demulsifier of the invention is contacted with the bituminous emulsion.
Assignee:
Texaco Canada Inc Ca; Texaco Inc
Patent Number(s):
US 4321148
OSTI ID:
5463170
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
ALCOHOLS
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
COLLOIDS
DEMULSIFICATION
DISPERSIONS
EMULSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GLYCOLS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
ISOCYANATES
MATERIALS
MEDIUM TEMPERATURE
OIL SANDS
OILS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM
PETROLEUM PRODUCTS
PLASTICS
POLYAMIDES
POLYETHYLENE GLYCOLS
POLYMERS
POLYURETHANES
RECOVERY
SYNTHETIC MATERIALS
TAR
WATER