Effect of Ionic Surfactants on Bauxite Residues Suspensions Viscosity

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

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Abstract

Measurement of the rheological property of bauxite residue sample received from an Australian alumina refinery, treated with a number of cationic and anionic surfactant in laboratory has been carried out using a Brookfield viscometer for the assessment of the effect of surfactants on the residue viscosity. It was found that sodium laurate, prepared with an excess of sodium hydroxide was found to be effective while direct addition of anionic surfactants (lauric acid and sodium laureth sulphate) and cationic (cetyl trimethyl ammonium bromide) produce only moderate effect on the red mud suspension apparent viscosity at 65 oC. The experimental data appear to confirm the crucial role of the cation sodium in the process of adsorption of anionic surfactants on the flocculated red mud particles.

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ID Code: 12291
Item Type: Journal Article
Refereed: Yes
Keywords: Red Mud, Bauxite residues, Rheology, Surfactant, Viscosity reduction
DOI: 10.1016/j.jcis.2006.11.058
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: 01 Feb 2008 00:00
Last Modified: 29 Feb 2012 13:37

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