| Patent Number |
Title Of Patent |
Date Issued |
| 7984866 |
Relocatable oil sand slurry preparation system |
July 26, 2011 |
| A relocatable oil sand slurry preparation system is provided for preparing an aqueous oil sand slurry amenable to pipeline conveyance while producing minimum overall rejects, comprising (a) a relocatable rotary digester for slurrying oil sand and water and digesting oil sand lumps to |
| 7763166 |
Relocatable countercurrent decantation system |
July 27, 2010 |
| A process line for separating oil sand slurry comprising coarse solids, fines, bitumen and water, into a first product comprising bitumen, fines and water and a second product comprising coarse solids, fines and water is provided comprising a plurality of countercurrently operating s |
| 5264118 |
Pipeline conditioning process for mined oil-sand |
November 23, 1993 |
| As-mined, naturally water-wet oil sand is mixed at the mine site with hot water and NaOH to produce a slurry containing entrained air. The slurry is pumped through a pipeline and is fed directly to a conventional gravity separation vessel. The pipeline is of sufficient length so that, in |
| 5039227 |
Mixer circuit for oil sand |
August 13, 1991 |
| The mixer circuit comprises a vertically oriented, open-topped mixer vessel having a cylindrical side wall terminating with a shallow conical bottom. The bottom wall forms a central bottom outlet. Recycled slurry and fresh water streams are fed tangentially to the inner surface of the ve |
| 4545892 |
Treatment of primary tailings and middlings from the hot water extraction process for recovering |
October 8, 1985 |
| The primary tailings and middlings are combined and fed to a vessel having the general form of a deep cone thickener. The feed is deflected outwardly and generally horizontally by a baffle, as it is delivered to the vessel. Simultaneously, the outwardly radiating layer of newly added fee |
