Demulsification of bitumen emulsions with a high molecular weight mixed alkylene oxide polyol

Patent · Tue Mar 23 00:00:00 EST 1982

OSTI ID:5393508

Gipson, R M; Mccoy, D R; Young, K B

A process for recovering bitumen from oil-in-water (O/w) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polyols of 2 and greater functionality containing predominantly mixed ethylene oxide and propylene oxide wherein the ethylene oxide content of the polyol (by weight) is greater than about 70% but less than about 95%. The molecular weight of these polyols is greater than about 10, 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 4321146
• OSTI ID: 5393508
• Resource Relation: Patent File Date: Filed date 22 May 1980; Other Information: PAT-APPL-152451
• Country of Publication: United States
• Language: English

Related Subjects

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