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Spring 2011
Bitumen recovery by the water-based extraction process produces waste streams known as tailings. When discharged into the tailing ponds, the coarse solids in the tailings stream settle out quickly, while the fine solids accumulate over years of settling to a solids content of 30-35% by weight....
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2003
Flotation columns may benefit the oil sand industry by improving grade and recovery when processing middlings. Preliminary testing was conducted with a laboratory flotation column for two-phase systems over a bubble size range of 250 to 1100 μm. A correlation between exponent “m” in the drift...