Predicting flotation response from liberation information

Wightman, Elaine M., Evans, Catherine L., Bradshaw, Dee J. and Manlapig, Emmanuel (2010). Predicting flotation response from liberation information. In: XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future. International Mineral Processing Congress 2010, Brisbane, Qld, Australia, (3403-3409). 6-10 September, 2010.

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Author Wightman, Elaine M.
Evans, Catherine L.
Bradshaw, Dee J.
Manlapig, Emmanuel
Title of paper Predicting flotation response from liberation information
Conference name International Mineral Processing Congress 2010
Conference location Brisbane, Qld, Australia
Conference dates 6-10 September, 2010
Convener Ralph J. Holmes
Proceedings title XXV International Mineral Processing Congress - IMPC 2010 'Smarter processing for the future
Journal name XXV International Mineral Processing Congress 2010, IMPC 2010
Place of Publication Carlton, VIC, Australia
Publisher Australasian Institute of Mining and Metallurgy
Publication Year 2010
Year available 2010
Sub-type Fully published paper
ISBN 9781921522284
Volume 5
Start page 3403
End page 3409
Total pages 7
Collection year 2011
Language eng
Abstract/Summary It is widely agreed that flotation recovery is strongly influenced by the physical properties of the particles in the stream being processed. Other factors, including the environment in which the particles exist, are also influential but in many cases these remain constant through the circuit. It has recently been shown for various different ore types that the liberation properties of a given mineral in the ore remains consistent for a given size fraction irrespective of the overall particle size distribution. This is particularly valid for the finer size fractions relevant to the flotation feed. For different ore types the amount of liberated mineral in a given size fraction has been shown to be related to the textures present in the ore. The implications of this are that when the particle size distribution of the stream changes (i.e. from changing mill throughput), then the fact that the amount of material of a specified liberation per size fraction remains constant means that the mass of values in each fraction (mass x amt) can be calculated. By knowing the flotation response of each of these fractions, the change is recovery can be calculated and the relationship between throughput and flotation recovery and grade can be predicted for that ore type. These predictions have been tested using a laboratory-based case study.
Keyword Liberation analysis
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

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Created: Mon, 20 Dec 2010, 14:29:58 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre