The relationships between the bubble-particle attachment time, collector dosage and the mineralogy of a copper sulfide ore

Albijanic, Boris, Bradshaw, Dee J. and Nguyen, Anh V. (2012) The relationships between the bubble-particle attachment time, collector dosage and the mineralogy of a copper sulfide ore. Minerals Engineering, 36-38 309-313. doi:10.1016/j.mineng.2012.06.007


Author Albijanic, Boris
Bradshaw, Dee J.
Nguyen, Anh V.
Title The relationships between the bubble-particle attachment time, collector dosage and the mineralogy of a copper sulfide ore
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2012-10
Sub-type Article (original research)
DOI 10.1016/j.mineng.2012.06.007
Volume 36-38
Start page 309
End page 313
Total pages 5
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2013
Language eng
Formatted abstract
Flotation occurs as a result of bubble-particle attachment. This is controlled by the particle surface properties which are created by surface liberation of valuable minerals and collector adsorption within the chemical environment. This paper examines the contribution of both collector dosage and liberation of valuable minerals to bubble-particle attachment time measurements. In order to evaluate particles of different liberation, the bubble-particle attachment time measurements were conducted with a sized fraction of concentrates and tails obtained by flotation of a copper sulfide ore (Northparkes Mine, Australia) in a mechanically agitated batch flotation cell. Quantitative mineral liberation analysis was performed to analyze all concentrates and tails. The results indicated that for particles with high Cu grade, a small increase of collector dosage resulted in a dramatic reduction of attachment time with no further increase on subsequent addition of collector. However, for particles with moderate Cu grade, the effect of collector addition on attachment time was reduced much less because valuable minerals were mainly moderately and poorly liberated. For particles with low Cu grade, collector addition made no difference. All these results confirmed that there is a highly non-linear correlation between mineral liberation, Cu grade, collector dosage and attachment time.
Keyword Froth flotation
Attachment time
Mineral liberation analysis
Collector dosage
Copper sulfide ore
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
School of Chemical Engineering Publications
Official 2013 Collection
 
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