Process for recovering bitumen from tar sand

Patent · Tue Dec 02 04:00:00 EST 1980

OSTI ID:6783922

Kruyer, J

Oil sand is mixed with steam and water in a tumbler to produce a slurry. The slurry is then transferred to the immersed portion of an apertured inclined surface in a water bath. The inclined surface may be in the form of a rotating drum, a tilted rotating dish or an inclined moving endless conveyor belt. The sand particles drop through the apertures and are collected from the base of the bath and discarded. The bitumen moves to the submerged portion of the oleophilic inclined surface and attempts to pass through the apertures; it touches the surface and adheres thereto. The adhering bitumen is collected when the coated surface emerges from the slurry. The process gives a good recovery of a bitumen product which has acceptable quantities of solid and water contamination. The temperature of separation, the need for reagents, and water requirements are reduced in comparison to the prior art. The process can generally be used for separating oleophilic materials from hydrophilic materials.

• Assignee: Kruyer Tar Sand Development Inc
• Patent Number(s): US 4236995
• OSTI ID: 6783922
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
041000 -- Oil Shales & Tar Sands-- Environmental Aspects
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
MATERIALS
MIXTURES
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
RECOVERY
SLURRIES
STEAM
SUSPENSIONS
TAR
WATER
WATER REQUIREMENTS