Oil recovery from tar sands

Details Oil recovery from tar sands Oil recovery from tar sands

1980-12-17

1983-01-11

Warren, Charles F.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 104

Patent

active

043681115

ABSTRACT:
A process for recovering oil from oil wet and particularly from oil-wet, acidic tar sands is described in which these sands are subjected to vigorous fluidization in the presence of water, air and a surfactant but in the absence of an extraneous hydrocarbon solvent. This step produces a multiphase mixture including an oil containing froth enabling gravity separation, e.g. in hydrocyclone.

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patent: 3875046 (1975-04-01), Rosenbloom
patent: 4029747 (1977-06-01), Merkl
patent: 4069152 (1978-01-01), Specken
patent: 4096057 (1978-06-01), Porrett et al.
patent: 4120776 (1978-10-01), Miller et al.
patent: 4139450 (1979-02-01), Hanson et al.

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