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:
Jul. 15, 2008
Filed:
May. 02, 2002
Randy Mikula, Devon, CA;
Vicente Munoz, Devon, CA;
Brad Bjornson, Fort McMurray, CA;
Doug Cox, Fort McMurray, CA;
Anita Marks, Fort McMurray, CA;
Randy Mikula, Devon, CA;
Vicente Munoz, Devon, CA;
Brad Bjornson, Fort McMurray, CA;
Doug Cox, Fort McMurray, CA;
Anita Marks, Fort McMurray, CA;
Suncor Energy, Inc., Calgary, Alberta, CA;
Abstract
Methods are disclosed for identifying and treating oil sand ores having degraded bitumen. This can be done by considering the location from which the ore is mined or its history, or by microscopic examination of a bitumen froth made from the ore, or by near-infrared spectroscopy. Ore which contains degraded bitumen is treated with at least 0.05 wt/wt % alkaline material, preferably 0.1 wt./wt % of such alkaline material, in the water addition step of a hot or warm water extraction process for the making of bitumen froth, such as the Clark process.