Process for separating high viscosity bitumen from tar sands

Details Process for separating high viscosity bitumen from tar sands Process for separating high viscosity bitumen from tar sands

1983-10-17

1984-12-04

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

209 5, 196 1452, C10G 100, C10G 104

Patent

active

044862946

ABSTRACT:
A novel process for separating high viscosity bitumen from tar sand. The process includes grinding the tar sand to obtain phase disengagement of the bitumen phase from the sand phase and thereafter using flotation techniques to obtain phase separation of the bitumen phase from the sand phase. Phase disengagement is assisted by using a suitable wetting agent such as sodium carbonate or sodium silicate during the grinding step, while the phase separation step is assisted by the inclusion of a promoter oil for the flotation step.

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R. J. Smith and J. D. Miller, "The Flotation Behavior of Digested Asphalt Ridge Tar Sands," Mining Engineering, 1719-1724, (1981).

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