The effect of increased frother dosage on froth stability at high depressant dosages

Wiese, J. G., Harris, P. J. and Bradshaw, D. J. (2010). The effect of increased frother dosage on froth stability at high depressant dosages. In: D. J. Bradshaw, J.-P. Franzidis and B. A. Wills, Minerals Engineering: Froth Flotation. Proceedings of: 4th International Flotation Conference. Flotation 09: 4th International Flotation Conference, Cape Town, WC, S.A., (1010-1017). 9-12 November 2009. doi:10.1016/j.mineng.2010.04.011


Author Wiese, J. G.
Harris, P. J.
Bradshaw, D. J.
Title of paper The effect of increased frother dosage on froth stability at high depressant dosages
Conference name Flotation 09: 4th International Flotation Conference
Conference location Cape Town, WC, S.A.
Conference dates 9-12 November 2009
Convener Minerals Engineering International
Proceedings title Minerals Engineering: Froth Flotation. Proceedings of: 4th International Flotation Conference   Check publisher's open access policy
Journal name Minerals Engineering   Check publisher's open access policy
Place of Publication Amsterdam, Netherlands
Publisher Elsevier
Publication Year 2010
Year available 2009
Sub-type Fully published paper
DOI 10.1016/j.mineng.2010.04.011
ISSN 0892-6875
1872-9444
Editor D. J. Bradshaw
J.-P. Franzidis
B. A. Wills
Volume 23
Issue 11-13
Start page 1010
End page 1017
Total pages 8
Collection year 2011
Language eng
Formatted Abstract/Summary
High energy costs required to smelt low grade concentrates could be alleviated by the production of high grade concentrates. Obtaining maximum PGM recovery by the use of high dosages of polysaccharide depressants may be problematic in that a significant decrease in the stability of the froth, particularly with CMC, results. These highly unstable froths may result in restricted mass pulls and decreased valuable mineral recovery. There are a number of ways of counteracting unstable froths, such as increasing airflow rate, reducing froth height or increasing frother dosage. Although necessary to maximise PGM recovery, all of these are likely to lead to increased water recovery and dilution of the concentrate by entrained material. This work examines the effect of increasing frother dosage on the recovery of sulphide minerals and floatable gangue from a Merensky ore at varying dosages of guar gum and CMC, as well as on the recovery of entrained gangue and its dependence on the physical nature of the flotation pulp.
© 2010 Elsevier Ltd. All rights reserved.
Keyword Precious metal ores
Froth flotation
Flotation depressants
Flotation frothers
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented during Symposium on Fundamentals: Physics and Chemistry. Published under "Froth Flotation - Fundamentals".

 
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Created: Sun, 28 Nov 2010, 00:02:05 EST