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US 8,806,774 B2Granted
Oil sands fluid fine tailings dewatering using rim ditching
AssigneeSyncrude Canada Ltd.
InventorsJames Lorentz, Barry Bara, Randy Mikula, Eric Leneve, Nan Wang
Life of this patent
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Abstract
A process of dewatering tailings is provided comprising mixing the tailings with a sufficient amount of an additive or a mixture thereof; depositing the resulting mixture into a disposal area; pumping water from the deposit to one or more sumps, and allowing the deposit to reach a sufficient strength; and removing remaining deposit water and rainfall through one or more of a network of ditches, a decant tower, or a plurality of dike drainage structures to yield a non-segregating deposit for reclamation.
Claims15
A process of dewatering tailings comprising:
- mixing the tailings with a sufficient amount of an additive or a mixture thereof;
- depositing the resulting mixture into a disposal area;
- pumping water from the deposit to one or more sumps, and allowing the deposit to reach a sufficient strength;
- and
- removing remaining deposit water and rainfall through one or more of a network of ditches, a decant tower, or a plurality of dike drainage structures to yield a non-segregating deposit for reclamation.
2 more elements
Dependencies are inferred from the claim text.