Recovery of heavy minerals from a tar sand

Details Recovery of heavy minerals from a tar sand Recovery of heavy minerals from a tar sand

2008-03-11

2008-03-11

Caldarola, Glenn (Department: 1797)

Mineral oils: processes and products

Tar sand treatment with liquid

C208S252000, C075S365000, C075S430000, C075S435000, C075S958000, C204S001001, C204S001001, C204S001001, C204S001001, C205S560000, C423S522000, C423S541400, C423S541400, C423S567100

Reexamination Certificate

active

07341658

ABSTRACT:
A process for recovering heavy minerals (e.g., titanium minerals such as TiO2) from a feedstock comprising tar sands or a tar sands-derived solids fraction. The feedstock comprises bitumen and heavy minerals. The process comprises the steps of: (i) contacting the solids fraction with water at a temperature of at least about 100° F. to cause production a bituminous phase and a heavy minerals phase; and (ii) separating the heavy minerals phase from the bituminous phase. Optionally, these steps may be preceded by one or more steps used to produce a tar-sands derived solids fraction from a tar sands feedstock.

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