Method for demulsification of bitumen emulsions using polyalkylene polyamine salts

Patent · Mon Mar 05 23:00:00 EST 1984

OSTI ID:6633562

McCoy, D R

A process for recovering bitumen from oil-in-water (O/W) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are polyamine salts prepared by contacting poly(ethyleneimines) with organic or inorganic acids. The polyamines have a molecular weight of at least 1,000. 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 Inc.
• Patent Number(s): US 4434850
• OSTI ID: 6633562
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
ADDITIVES
AMINES
BITUMENS
COLLOIDS
DEMULSIFICATION
DEMULSIFIERS
DISPERSIONS
EMULSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
HYDROGEN COMPOUNDS
IN-SITU PROCESSING
INORGANIC ACIDS
OIL SAND DEPOSITS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PROCESSING
RECOVERY
SALTS
STEAM INJECTION
STIMULATION
TAR
THERMAL RECOVERY
WATER
WATERFLOODING
WELL STIMULATION