Method and apparatus to improve secondary froth quality...

Details Method and apparatus to improve secondary froth quality... Method and apparatus to improve secondary froth quality...

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01)

Patent

CA 2133911

A method to upgrade the quality of secondary froth obtained from a hot water extraction process and to improve treatment thereof comprising the steps of providing a froth cleaner, passing an untreated secondary froth stream into the froth cleaner for treatment, removing a low-bitumen content underflow stream from the froth cleaner, reheating at least a portion of the removed underflow stream and combining the reheated portion of the removed underflow stream with the untreated secondary froth stream prior to passing into the froth cleaner for treatment improving the performance of the froth cleaner and consequently increasing the quality of the cleaned secondary froth cleaner unit.

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