Recovery, characterization and conceptual modelling of non-bituminous organic materials from oil sands

摘要

The hot water process has recovered approximately 90/100 of the bitumen in oil sands, but the remaining 10/100 of bitu- men and naphtha has been lost to the tailings pond. Recovery of bitumen and non-bituminous combustibles (NBC) from centrifuge, scroll and final tailings has been considered. The effects of four sequestering agents, and of chemical additives such as CaCl_2 and FeCl_3 on the flotation behavior of bitumen, NBC and minerals in these tailings have been investigated.