The determination of floatability distribution from laboratory batch cell tests

Pascual, R.L. and Whiten, W.J. (2015) The determination of floatability distribution from laboratory batch cell tests. Minerals Engineering, 83 1-12. doi:10.1016/j.mineng.2015.08.007


Author Pascual, R.L.
Whiten, W.J.
Title The determination of floatability distribution from laboratory batch cell tests
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2015-11-14
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.mineng.2015.08.007
Open Access Status Not Open Access
Volume 83
Start page 1
End page 12
Total pages 12
Place of publication Kidlington, Oxford, United Kingdom
Publisher Elsevier
Collection year 2016
Language eng
Abstract The determination of the floatability distribution for froth flotation from laboratory batch cell tests is ill conditioned. Tikhonov regularisation with accuracy estimates, such as repeat tests for the recovery data, provides a way to produce solutions. Two approaches are examined: a continuous approximation of the distribution using Laguerre polynomials, and using finely spaced discrete components. It is shown that for data generated with a known floatability distribution, the distribution can be recovered. For experimental data from the literature both methods give similar floatability distributions. The accuracy of the calculated floatability distributions is estimated. Repeat data is important in determining the regularisation parameter and thus insuring the data is not over fitted or over smoothed.
Keyword Froth flotation
Flotation rate distribution
Batch flotation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
Sustainable Minerals Institute Publications
 
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