B - Operations – Transporting – 03 – B
Patent
B - Operations, Transporting
03
B
B03B 1/04 (2006.01) B03B 9/02 (2006.01) C10G 1/04 (2006.01)
Patent
CA 2696181
Methods are disclosed and claimed for digesting oil sand ore to slurry in the presence of water and process aid sufficient to disengage bitumen particles from oil sand minerals in an aqueous medium and to disperse the slurry particulates. After digesting the oil sand ore, enough multivalent cations are added to the slurry to replace monovalent cations on surfaces of mineral ultrafines in said slurry. This selective cation replacement on mineral surfaces causes capture of ultrafines by bitumen phase during separation of the slurry by sieving through an oleophilic sieve. In this separation, bitumen agglomeration is followed by adhesion of bitumen phase to oleophilic surfaces of the sieve whilst debituminized slurry passes through apertures of the sieve to disposal as tailings.
Kruyer Jan
Kruyer Jan
Na
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