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U.S. Department of Energy
Office of Scientific and Technical Information

Recovery of bitumen from tar sands sludge using additional water

Patent ·
OSTI ID:5671967
A method is disclosed for the recovery of bitumen from a sludge. The sludge is diluted with water and subjected to high-shear agitation and aeration and the sludge settled to obtain an upper bitumen-containing froth layer and a lower sludge layer of reduced bitumen content. The recovery of bitumen is increased over that obtained with aeration and mixing with mild agitation or with aeration alone or with agitation alone.
Assignee:
Suncor, Inc. (Canada)
Patent Number(s):
US 4392941
OSTI ID:
5671967
Country of Publication:
United States
Language:
English