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:
Jun. 04, 2013
Filed:
Oct. 26, 2009
Applicant:
Tapantosh Chakrabarty, Calgary, CA;
Inventor:
Tapantosh Chakrabarty, Calgary, CA;
Assignee:
ExxonMobil Upstream Research Company, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/035 (2006.01); C23G 5/02 (2006.01); C11D 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The use of a solvent for bitumen extraction, either from mined oil sands or in situ. The solvent includes (a) a polar component, the polar component being a compound comprising a non-terminal carbonyl group; and (b) a non-polar component, the non-polar component being a substantially aliphatic substantially non-halogenated alkane. The solvent has a Hansen hydrogen bonding parameter of 0.3 to 1.7 and/or a volume ratio of (a):(b) in the range of 10:90 to 50:50.