Ambient froth flotation process for the recovery of bitumen from tar sand

Patent · Mon Jan 09 23:00:00 EST 1984

OSTI ID:6800448

Smith, S L

A method is disclosed for upgrading the bitumen content of tar sands, wherein a raw tar sand slurry admixture of tar sands, water, collectors, and dispersing/wetting agents is milled; conditioned and then separated by a series of froth flotations at ambient temperatures from about 2/sup 0/ C. to about 25/sup 0/ C. to recover a concentrated bitumen tar sand product which may be processed by conventional means to recover oil from the bitumen. Enhanced recovery of bitumen may be accomplished by moderate heating in one or more of the flotation zones to about 50/sup 0/ C. The method permits recovery and recycle of various components used in processing of the tar sand.

• Assignee: GNC Energy Corp.
• Patent Number(s): US 4425227
• OSTI ID: 6800448
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
ACRYLAMIDE
AMBIENT TEMPERATURE
AMIDES
AQUEOUS SOLUTIONS
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CONTROL
DISPERSIONS
ENERGY SOURCES
FLOCCULATION
FLOTATION
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
LOW TEMPERATURE
MATERIALS
MIXTURES
OIL SANDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYMERS
PRECIPITATION
PROCESS CONTROL
REAGENTS
RECOVERY
SAND
SEPARATION PROCESSES
SLURRIES
SOLUTIONS
SURFACTANTS
SUSPENSIONS
TAR
WATER
WETTING AGENTS