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:
Nov. 09, 1976
Filed:
Sep. 10, 1974
Applicant:
Inventors:
Robert A Baillie, West Chester, PA (US);
Lawrence F Schmoyer, Edmond, OK (US);
Thomas E Skarada, Wallingford, PA (US);
Assignee:
Great Canadian Oil Sands Limited, Toronto, CA;
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
423 70 ; 208 / ; 209-5 ; 209 10 ; 209166 ; 4235 / ; 75 / ; 75 / ;
Abstract
A method for removing bitumen from mineral particles recovered from bituminous froth recovered as a product of aqueous extraction of tar sands which method comprises scrubbing the minerals with a liquid hydrocarbon solvent containing at least 10 weight percent aromatics and thereafter separating the minerals from the solvent and subsequently drying the minerals.