The effect of breakage method on the shape properties of an iron-oxide hosted copper-gold ore

Vizcarra, T. G., Wightman, E. M., Johnson, N. W. and Manlapig, E. V. (2011) The effect of breakage method on the shape properties of an iron-oxide hosted copper-gold ore. Minerals Engineering, 24 13: 1454-1458. doi:10.1016/j.mineng.2011.07.007


Author Vizcarra, T. G.
Wightman, E. M.
Johnson, N. W.
Manlapig, E. V.
Title The effect of breakage method on the shape properties of an iron-oxide hosted copper-gold ore
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2011-10-01
Sub-type Article (original research)
DOI 10.1016/j.mineng.2011.07.007
Volume 24
Issue 13
Start page 1454
End page 1458
Total pages 5
Place of publication Kidlington, Oxford, U.K.
Publisher Pergamon
Collection year 2012
Language eng
Abstract Using a mineral liberation analyser (MLA), the shape properties of an iron-oxide hosted copper–gold ore following comminution in either a hammer mill or a piston–die compression unit were examined. It was found that particle angularity distributions were able to be fitted to the beta distribution, providing a convenient way to quantify changes in particle shape properties as a function of the breakage method employed. Particles discharged from the hammer mill were less angular than particles discharged from the piston–die compression unit. This was attributed to attrition breakage mechanisms, whereby topographical features are chipped off parent particle surfaces. The results suggest that the quantification of shape properties is a convenient method for obtaining insight into the nature of breakage events that take place inside comminution devices.
Keyword Comminution
Particle shape
Mineral liberation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Official 2012 Collection
 
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Created: Tue, 06 Sep 2011, 19:18:58 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre