Effect of Surfactants on Bauxite Residues Suspensions Viscosity

Frost, Ray L., Pejcinovic, Nikola, & Nguyen, Tai M. (2007) Effect of Surfactants on Bauxite Residues Suspensions Viscosity. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 292(1), pp. 21-26.

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Measurement of the rheological property of bauxite residue samples received from an Australian alumina refinery (red mud and neutralised mud suspension) has been carried out using a Brookfield viscometer. The plant samples were treated with two anionic surfactants (sodium polyphosphate and sodium laurate) in the laboratory and the effect of the surfactants on the residues viscosity was determined. It was found that the addition of sodium laurate, prepared with an excess of sodium hydroxide causes reduction of the viscosity of both red mud and neutralised mud while sodium polyphosphate shows very little effect on either samples. The suspensions exhibit non-Newtonian behaviour and obey the power law model over a range of solid concentrations at 75 degrees Celsius.

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14 citations in Scopus
12 citations in Web of Science®
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ID Code: 5900
Item Type: Journal Article
Refereed: Yes
Keywords: Red Mud, Bauxite residues, surfactant, Rheology, Surfactant, Viscosity reduction
DOI: 10.1016/j.colsurfa.2006.05.045
ISSN: 0927-7757
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 20 Dec 2006 00:00
Last Modified: 29 Feb 2012 13:37

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