Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Vicente Munoz0
Brad Bjornson0
Doug Cox0
Randy Mikula0
Anita Marks0
Date of Patent
July 15, 2008
0Patent Application Number
101363320
Date Filed
May 2, 2002
0Patent Primary Examiner
Patent 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.
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