Improving the recovery of low grade coarse composite particles in porphyry copper ores

Farrokhpay, Saeed, Ametov, Igor and Grano, Stephen (2011) Improving the recovery of low grade coarse composite particles in porphyry copper ores. Advanced Powder Technology, 22 4: 464-470.


Author Farrokhpay, Saeed
Ametov, Igor
Grano, Stephen
Title Improving the recovery of low grade coarse composite particles in porphyry copper ores
Journal name Advanced Powder Technology   Check publisher's open access policy
ISSN 0921-8831
1568-5527
Publication date 2011-07
Sub-type Article (original research)
DOI 10.1016/j.apt.2011.04.003
Volume 22
Issue 4
Start page 464
End page 470
Total pages 7
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract The flotation behaviour of low grade, coarse composite particles for two porphyry copper ores was studied. Different grinding times were employed to obtain size distributions for the flotation feed (d80) ranging from 150 to 320 μm. Copper containing particles in the fine to intermediate size ranges were recovered in the rougher flotation stage. The rougher tailing was then screened through a 75 μm laboratory sieve. The +75 μm fraction was conditioned with a longer chain collector and floated in either normal viscosity (water) or high viscosity (glycerol-water mixture) medium. The recovery of copper was analysed on an un-sized and size-by-size basis. The recovery of coarse composite copper bearing particles was found to increase in high viscosity medium, even when the liberation of copper bearing minerals was only as low as 10%. The ability to recover these types of particles may result in a reduction in energy consumption in grinding due to the ability to achieve higher overall recovery of valuable mineral at coarse particle size distribution.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
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Created: Mon, 22 Aug 2011, 11:39:00 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre