The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2014
Filed:
Aug. 31, 2011
Applicants:
Xin Alex Wu, Edmonton, CA;
George Burton Jones, Calgary, CA;
George Cymerman, Edmonton, CA;
Inventors:
Assignee:
Syncrude Canada Ltd, Fort McMurray, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 1/04 (2006.01);
U.S. Cl.
CPC ...
C10G 1/045 (2013.01); C10G 2300/44 (2013.01);
Abstract
A process for extracting bitumen from oil sand using a combination of heavy solvent and light solvent is provided comprising digesting mined oil sand with a high-flash point heavy solvent (HS) to produce a dense oil sand slurry; mixing the dense slurry with a light solvent (LS) to give a heavy solvent to light solvent (HS/LS) mass ratio of about 70/30 to about 50/50 and subjecting the thinned oil sand slurry to a first stage solid-liquid separation to produce a first liquids stream containing bitumen and a first solids stream.