ADJUSTMENT OF PH IN THE FILTRATION OF TAR SAND SOLVENT-WATER SYSTEMS
United States Patent 3542666
US Patent References:
Method for separating bitumen from bituminous sands and similar bituminous materials
- - 1820917
Separation process
- - 3267998
FILTRATION OF SOLVENT-WATER EXTRACTED TAR SAND
- - 3459653
Method for separating bitumen from bituminous sands and similar bituminous materials
- - 1820917
Separation process
- - 3267998
FILTRATION OF SOLVENT-WATER EXTRACTED TAR SAND
- - 3459653
Inventors:
Simpson, Warren C.
Publication Date:
11/24/1970
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Assignee:
SHELL OIL CO
Primary Class:
International Classes:
C10C3/00; C10G1/04; C10G1/00; C10G1/00
Foreign References:
| CA639050A |