FLOTATION AND CENTRIFUGATION METHOD FOR RECOVERY OF HYDROCARBONS FROM DILUTION CENTRIFUGING TAILINGS

摘要

"FLOTATION AND CENTRIFUGATION METHOD FOR RECOVERY OF HYDROCARBONS FROM DILUTION CENTRIFUGING TAILINGS" The invention has to do with treatment of dilution centrifuging tailings which are produced in connection with a hot water extraction operation for recovery of bitumen from oil sands. The tailings are subjected to induced gas flotation for a predetermined period of time to recover contained hydrocarbons as froth. The froth is then diluted with naphtha and centrifuged in two stages to recover most of the hydrocarbons in the froth as a processable product while rejecting solids and water.