Process for recovery of solvent from tar sand bitumen
Patent
·
OSTI ID:6410273
There is described a process based on unit operations conventionally employed but modified to enable the use of chlorinated solvents, particularly methylene chloride as the preferred solvent for extraction of the bitumen from the tar sands or shale. The process in general constitutes: an extraction operation wherein the tar sand is contacted with the chlorinated solvent, particularly methylene chloride, to extract (dissolve) the bitumen from the sand; a separation of the sand from the solvent bitumen extract; recovery of the bitumen free of extractant; and recovery of the sand free of extractant.
- Assignee:
- The Dow Chemical Company
- Patent Number(s):
- US 4532024
- OSTI ID:
- 6410273
- 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
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLORIDES
CHLORINATION
CHLORINE COMPOUNDS
DESIGN
DISSOLUTION
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
HALOGENATION
MATERIALS
METHYLENE CHLORIDE
OIL SANDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
RECOVERY
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
TAR
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLORIDES
CHLORINATION
CHLORINE COMPOUNDS
DESIGN
DISSOLUTION
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
HALOGENATION
MATERIALS
METHYLENE CHLORIDE
OIL SANDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OTHER ORGANIC COMPOUNDS
RECOVERY
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SEPARATION EQUIPMENT
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
TAR