Decarbonation of tailings sludge to improve settling

Details Decarbonation of tailings sludge to improve settling Decarbonation of tailings sludge to improve settling

C - Chemistry, Metallurgy

10

G

196/24

C10G 1/00 (2006.01)

Patent

CA 1190498

DECARBONATION OF TAILINGS SLUDGE TO IMPROVE SETTLING ABSTRACT Carbonates and bicarbonates are removed from the sludge of tar sands tailings ponds whereby solids settle from the sludge more rapidly than in the presence of the carbonates and/or bicarbonates. Hydrolyzed starch is used as a flocculant in the process and alcohol may also be used to assist in the settling and/or to improve the characteristics of the settled sludge for subsequent dewatering.

419175

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