A simple method for establishing whether the adsorption of polysaccharides on talc is a reversible process

Cawood, S. R., Harris, P. J. and Bradshaw, D. J. (2005) A simple method for establishing whether the adsorption of polysaccharides on talc is a reversible process. Minerals Engineering, 18 10: 1060-1063.


Author Cawood, S. R.
Harris, P. J.
Bradshaw, D. J.
Title A simple method for establishing whether the adsorption of polysaccharides on talc is a reversible process
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2005-08
Sub-type Article (original research)
DOI 10.1016/j.mineng.2005.01.012
Volume 18
Issue 10
Start page 1060
End page 1063
Total pages 4
Place of publication Oxford, U.K.
Publisher Pergamon Press
Language eng
Subject 0914 Resources Engineering and Extractive Metallurgy
Abstract Polymeric depressants (modified guars and carboxy methyl celluloses) are used in the flotation of platinum-bearing ores in South Africa to reduce the recovery of naturally floatable gangue minerals such as talc. These polymers have always been considered to weakly adsorb (via physical adsorption forces) on gangue minerals and consequently the adsorption is considered to be an equilibrium process and therefore reversible. Micro-scale flotation tests on a talc sample showed that the floatability of the talc could be completely reduced by the adsorption of these polysaccharides but could be restored, depending on the conditions, by washing with water showing that the adsorption is reversible in a pure water system. Copyright © 2005 Elsevier Ltd All rights reserved.
Keyword Precious metal ores
Flotation depressants
Froth flotation
Q-Index Code C1
Additional Notes Technical note

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Excellence in Research Australia (ERA) - Collection
 
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Created: Wed, 13 Jan 2010, 08:57:12 EST by Gerald Martin on behalf of Sustainable Minerals Institute