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:
Aug. 04, 2009
Filed:
Apr. 12, 2004
Alexander William Hyndman, North Saanich, CA;
John Patrick Ringstrom, Calgary, CA;
John Sharpe, Calgary, CA;
Douglas Robert Bartlett, Calgary, CA;
W. Scott Hindle, Calgary, CA;
Chris L. Grant, Calgary, CA;
Alexander William Hyndman, North Saanich, CA;
John Patrick Ringstrom, Calgary, CA;
John Sharpe, Calgary, CA;
Douglas Robert Bartlett, Calgary, CA;
W. Scott Hindle, Calgary, CA;
Chris L. Grant, Calgary, CA;
Fort Hills Energy L.P., , CA;
Abstract
Processes and apparatus for the treatment of product streams from mineral processing operations, including the treatment of tailings which result from oil sand processing operations. The processes and apparatus relate to the recovery of a diluent solvent from bitumen froth tailings and to the thickening of tailings from a bitumen froth stream and a middlings stream resulting from an oil sand extraction process. In one aspect the processes and apparatus relate particularly to the recycling of product streams to maximize process efficiencies. In a second aspect the processes and apparatus relate particularly to the thickening of tailings to produce an underflow component, a clarified overflow component and an unclarified overflow component.