B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 3/10 (2006.01) D21C 11/10 (2006.01) C13F 1/00 (2006.01)
Patent
CA 2369856
Method and apparatus for concentrating slurries by removing liquid in a single effect unit maintained under vacuum to effect low temperature flashing of the liquid. The single effect unit comprises a single flash column with separate recirculation loops, one to preheat incoming slurry for concentration and a separate loop for withdrawal of concentrated slurry. Vapor from the flash column can be treated to separate liquid from other components in the vapor.
L'invention concerne un procédé et un appareil permettant de concentrer des bouillies par élimination d'un liquide dans une seule unité à effet maintenue sous vide, afin d'effectuer une vaporisation instantanée dudit liquide à basse température. L'unité à effet comprend une seule colonne de vaporisation instantanée pourvue de boucles de recirculation séparées, l'une permettant de préchauffer la bouille entrante afin de la concentrer, et l'autre permettant de retirer la bouillie concentrée. La vapeur provenant de la colonne de vaporisation instantanée peut être traitée afin de séparer le liquide des autres composants de ladite vapeur.
Marks & Clerk
Minerals Technologies Inc.
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