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. 13, 1987
Filed:
Sep. 10, 1985
Applicant:
Inventor:
Lawrence B Peck, Glen Ellyn, IL (US);
Assignee:
Amoco Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208390 ;
Abstract
A method for removing solid fines in an extraction of bitumen by (1) extracting bitumen with a mixed solvent comprising at least one solvent with a solubility parameter higher than that of the bitumen and at least one solvent with a solubility parameter lower than that of the bitumen to obtain a bitumen laden solvent mixture and (2) treating the bitumen laden solvent mixture to remove the lower solubility parameter solvent to precipitate undissolved asphaltenic bitumen and solid fines.