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. 30, 1990
Filed:
Sep. 23, 1988
Applicant:
Inventors:
Jerry B Hall, Cedar Springs, MI (US);
Anthony Russo, Grand Rapids, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208390 ; 208391 ;
Abstract
A process for the extraction of oil and bitumen fractions from tar sands comprising the steps of heating the tar sands to 70.degree.-150.degree. F., mixing with an aqueous solutions of water soluble separation chemicals, particularly sulfonated fatty acids or salts, holding the tar sand and the separation chemicals for a sufficient period of time to allow the bitumen to float to the top and the sand to sink to the bottom, and separation of the oil or bitumen fractions from water and the separation chemicals.