Double solvent extraction of organic constituents from tar sands

Details Double solvent extraction of organic constituents from tar sands Double solvent extraction of organic constituents from tar sands

1976-01-12

1977-09-06

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 104

Patent

active

040466680

ABSTRACT:
Extraction of hydrocarbons from tar sands with a light naphtha/methanol solvent system results in rapid decrepitation of the tar-sand aggregate and separation of organic matter into three phases. Distribution of the extracted and non-extracted organic material is among the phases. The most desirable, non-polar organic materials are recovered from the light naphtha phase; more polar soluble constituents are recovered from the methanol phase; and less desirable asphaltenes separate as a precipitate.

REFERENCES:
patent: 1904521 (1933-04-01), Pier et al.
patent: 2453060 (1948-11-01), Bauer et al.
patent: 3392105 (1968-07-01), Poettmann et al.
patent: 3459653 (1969-08-01), Benson
patent: 3475318 (1969-10-01), Gable et al.

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