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Solvent extraction of tar sand

Patent ·
OSTI ID:6421354
;
An extraction process for recovering bitumens from tar sands in which the tar sand is mixed with a hot hydrocarbon solvent, for example, toluene, in order to evaporate substantially all the water contained in the tar sands. The tar sands-solvent mixture is then separated into two phases of fine and coarse sand. Two centrifuging steps are then used to recover the bitumen from the fine sand phase.
Assignee:
Phillips Petroleum Co.
Patent Number(s):
US 4139450
OSTI ID:
6421354
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
AROMATICS
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CENTRIFUGATION
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HYDROCARBONS
OIL SANDS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
RECOVERY
SAND
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
TAR
TOLUENE