The effect of particle-particle interaction forces on the flow properties of silica slurries

Harbottle, David, Rhodes, Dominic, Fairweather, Michael and Biggs, Simon (2009). The effect of particle-particle interaction forces on the flow properties of silica slurries. In: ICEM2007: Proceedings of the 11th International Conference on Environmental Remediation and Radioactive Waste Management, Pts A and B. 11th International Conference on Environmental Remediation and Radioactive Waste Management, Bruges Belgium, (1147-1152). Sep 02-06, 2007. doi:10.1115/ICEM2007-7104


Author Harbottle, David
Rhodes, Dominic
Fairweather, Michael
Biggs, Simon
Title of paper The effect of particle-particle interaction forces on the flow properties of silica slurries
Conference name 11th International Conference on Environmental Remediation and Radioactive Waste Management
Conference location Bruges Belgium
Conference dates Sep 02-06, 2007
Proceedings title ICEM2007: Proceedings of the 11th International Conference on Environmental Remediation and Radioactive Waste Management, Pts A and B
Publisher ASME
Publication Year 2009
Sub-type Fully published paper
DOI 10.1115/ICEM2007-7104
Open Access Status
ISBN 978-0-7918-4339-0
0-7918-3818-8
Start page 1147
End page 1152
Total pages 6
Language eng
Formatted Abstract/Summary
Preliminary work has been completed to investigate the effect of particle-particle interaction forces on the flow properties of silica slurries. Classically Hydrotransport studies have focused on the flow of coarse granular material in Newtonian fluids. However, with current economical and environmental pressures, the need to increase solid loadings in pipe flow has lead to studies that examine non-Newtonian fluid dynamics. The flow characteristics of non-Newtonian slurries can be greatly influenced through controlling the solution chemistry. Here we present data on an “ideal” slurry where the particle size and shape is controlled together with the solution chemistry. We have investigated the effect of adsorbed cations on the stability of a suspension, the packing nature of a sediment and the frictional forces to be overcome during reslurrying. A significant change in the criteria assessed was observed as the electrolyte concentration was increased from 0.1mM to 1M. In relation to industrial processes, such delicate control of the slurry chemistry can greatly influence the optimum operating conditions of non-Newtonian pipe flows.
Keyword Yield-stress
Suspensions
Ph
Surfaces
Velocity
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

 
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