Patent ID: 9434887
Filing Date: 2016-09-06
CPC Classification: C10G

Claim Text:
1. A method for extracting bitumen from an oil sand stream the method comprising at least the steps of: (a) providing an oil sand stream; (b) contacting the oil sand stream with a solvent in a first section within a rotating housing thereby obtaining a solvent-diluted oil sand slurry; (c) screening the solvent-diluted oil sand slurry in a second section of the rotating housing, thereby obtaining oversized material retained inside of a screen and undersized material flowing through the screen to an annular pathway between the screen and the housing; (d) recovering undersized material from the annular pathway; (e) passing oversized material to a third section of the housing; (f) removing solvent from the oversized material in the third section within the housing thereby obtaining solvent-depleted oversized material; (g) filtering the undersized material obtained in step (c), thereby obtaining a solids-depleted stream and a solids-enriched stream; and (h) removing solvent from the solids-depleted stream obtained in step (g) thereby obtaining a bitumen-enriched stream;