Bitumen froth storage and separation using an improved froth tank
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United States of America Patent
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Dec 30, 2014
Grant Date -
Sep 26, 2013
app pub date -
Mar 26, 2012
filing date -
Mar 26, 2012
priority date (Note) -
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Abstract
The invention is directed to a process for separating bitumen froth into an upper bitumen-rich, reduced-solids layer, and a lower concentrated solids layer using a cone-bottomed, raked froth tank. The process involves introducing bitumen froth into the froth tank; rotating at least one movable picket through the bitumen froth; recovering the upper bitumen-rich, reduced-solids layer; and withdrawing the lower concentrated solids layer from the tank.
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