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The rheological properties of dewatered tailings and cemented paste backfill have been measured and subsequently altered using polymeric dispersants. Polyphosphate and naphthalene sulfonate formaldehyde condensate (NSF) were selected as potential candidates to reduce the yield stress (τ B ) of the two slurries. Adsorption isotherms, acoustophoresis, and rheology measurements indicate that...
A model system comprising of chemically-dissimilar and oppositely-charged metal oxides has been used to investigate the removal of small particles from surfaces and, particularly, the role of interaction forces in this process. Techniques including reflectometry, rheology, microelectrophoresis, acoustophoresis and atomic force microscopy have been utilised. Silica particles adsorbed onto titania...
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