C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/16
C10G 1/04 (2006.01)
Patent
CA 1249976
TITLE SOLVENT EXTRACTION SPHERICAL AGGLOMERATION OF OIL SANDS INVENTORS BRYAN D. SPARKS F. WELDON MEADUS ENRIQUE O. HOEFELE ABSTRACT OF THE DISCLOSURE Oil sands and similar hydrocarbon-solids mixtures are separa- ted into their components by steps comprising: mixing with a solvent for the hydrocarbon in an extraction-contacting stage including a controlled light milling action, in the presence of hydrophilic bridging liquid, under selected conditions favouring the formation of large agglomerates of substantially all hydrophilic solids; controlling the milling action to break down continuously the agglomerates so that at equilibrium the agglomerate size is much smaller than expected; separating the agglomerates from the concentrated hydrocarbon solution and stripping solvent from this solution to leave hydrocarbon product; washing the agglomerates with solvent and recycling this dilute wash solution preferably to the extraction-contacting; desolventizing the agglomerates and recycling solvent preferably to the wash stage. The agglomerates have fast settling and draining properties and a low hydrocarbon content while the hydrocarbon product has a low solids content. An apparatus for carrying out this process is described.
486032
Hoefele Enrique O.
Meadus F. Weldon
Sparks Bryan D.
Canadian Patents And Development Limited/societe Canadienne Des
National Research Council Of Canada
Thomson Alan A.
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