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Process for separating high viscosity bitumen from tar sands

Patent ·
OSTI ID:5497786
;
A novel process is disclosed for separating high viscosity bitumen from tar sand. The process includes grinding the tar sand to obtain phase disengagement of the bitumen phase from the sand phase and thereafter using flotation techniques to obtain phase separation of the bitumen phase from the sand phase. Phase disengagement is assisted by using a suitable wetting agent during the crushing step while the phase separation step is assisted by the inclusion of a promoter oil for the flotation step.
Assignee:
University of Utah Research Foundation
Patent Number(s):
US 4410417
OSTI ID:
5497786
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
COMMINUTION
ENERGY SOURCES
FLOTATION
FOSSIL FUELS
FUELS
GRINDING
MACHINING
MATERIALS
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
SEPARATION PROCESSES
SURFACTANTS
TAR
VISCOSITY
WETTING AGENTS