Enhanced bitumen flotation
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United States of America Patent
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Jun 1, 2010
Issued Date -
N/A
app pub date -
Feb 9, 2007
filing date -
Feb 9, 2007
priority date (Note) -
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Abstract
A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mounted thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for aerating a stream of middlings withdrawn from the separating vessel and reintroducing the aerated middlings back to the separating vessel.
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