Frother characterisation using dynamic surface tension measurements

Comley, B. A., Harris, P. J., Bradshaw, D. J. and Harris, M. C. (2002) Frother characterisation using dynamic surface tension measurements. International Journal of Mineral Processing, 64 2-3: 81-100. doi:10.1016/S0301-7516(01)00065-5


Author Comley, B. A.
Harris, P. J.
Bradshaw, D. J.
Harris, M. C.
Title Frother characterisation using dynamic surface tension measurements
Journal name International Journal of Mineral Processing   Check publisher's open access policy
ISSN 0301-7516
Publication date 2002-01-01
Year available 2002
Sub-type Article (original research)
DOI 10.1016/S0301-7516(01)00065-5
Volume 64
Issue 2-3
Start page 81
End page 100
Total pages 20
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Collection year 2002
Language eng
Formatted abstract
There is as yet no accepted method of predicting flotation frother performance in plant processes based on laboratory scale characterisation techniques. This paper investigates the use of dynamic surface tension, using the maximum bubble pressure method, as a means of evaluating frother performance. The method has been refined to facilitate measurement at high bubble rates, an important criterion with respect to the analysis of small, fast adsorbing molecules at low concentration such as flotation frothers. An adsorption model is presented, which has been used to elucidate the role of frothers with respect to bubble size in a flotation cell, based on the correlation of model parameters to physical frother characteristics. The potential for the application of dynamic surface tension to the performance of the froth phase in a flotation system is also discussed.
Keyword Bubble size
Coalescence
Dynamic surface tension
Flotation frothers
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Julius Kruttschnitt Mineral Research Centre Publications
 
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Created: Tue, 09 Dec 2014, 00:04:40 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre