Method for demulsification of bitumen emulsions

Patent · Tue Jul 03 00:00:00 EDT 1984

OSTI ID:6363870

McCoy, D R; Entire, E E; Gipson, R M

A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polymers of specific quaternary ammonium monomers or co-polymers of these quaternary ammonium monomers wth other types of monomers wherein the greater portion of the co-polymer is comprised of the quaternary ammonium monomers. To resolve the bitumonous 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 Inc.
• Patent Number(s): US 4457371
• OSTI ID: 6363870
• Resource Relation: Patent File Date: Filed date 2 Dec 1981; Other Information: PAT-APPL-326455
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
BITUMENS
DEMULSIFICATION
RECOVERY
OIL SANDS
HOT-WATER PROCESSES
QUATERNARY COMPOUNDS
SOLUBILITY
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
COPOLYMERS
DEMULSIFIERS
EMULSIFICATION
EMULSIONS
MEDIUM TEMPERATURE
MONOMERS
POLYMERS
ADDITIVES
AMINES
AMMONIUM COMPOUNDS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
COLLOIDS
DISPERSIONS
ENERGY SOURCES
FLUID INJECTION PROCESSES
FOSSIL FUELS
FUELS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
TAR
040402* - Oil Shales & Tar Sands- Surface Methods