System and method for treating tailings from bitumen extraction

Details System and method for treating tailings from bitumen extraction System and method for treating tailings from bitumen extraction

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01) B09C 1/00 (2006.01) C04B 14/10 (2006.01) C10C 3/04 (2006.01)

Patent

CA 2674660

A system and method for treating tailings from a bitumen froth treatment process such as TSRU tailings. The tailings are dewatered and then combusted to convert kaolin in the tailings into metakaolin. Calcined fines and heavy minerals may be recovered from the combustion products, namely from the flue gas and bottom ash.

Système et méthode pour le traitement des résidus d'un procédé de traitement du bitume par moussage, par exemple des résidus issus d'une unité de récupération des résidus au solvant. Les résidus sont déshydratés et soumis à une combustion pour convertir la kaoline qu'ils renferment en métakaoline. Les fines calcinées et les minéraux lourds peuvent être récupérés à partir des produits de combustion, c'est-à-dire les gaz de combustion et les cendres résiduelles.

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