The different effects of bentonite and kaolin on copper flotation

Wang, Yanhong, Peng, Yongjun, Nicholson, Timothy and Lauten, Rolf Andreas (2015) The different effects of bentonite and kaolin on copper flotation. Applied Clay Science, 114 48-52. doi:10.1016/j.clay.2015.05.008


Author Wang, Yanhong
Peng, Yongjun
Nicholson, Timothy
Lauten, Rolf Andreas
Title The different effects of bentonite and kaolin on copper flotation
Journal name Applied Clay Science   Check publisher's open access policy
ISSN 0169-1317
1872-9053
Publication date 2015-09-03
Sub-type Article (original research)
DOI 10.1016/j.clay.2015.05.008
Volume 114
Start page 48
End page 52
Total pages 5
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2016
Language eng
Abstract Clay minerals impose deleterious impacts on mineral processing. In this study, bentonite consisting primarily of montmorillonite and kaolin consisting primarily of kaolinite, were used to characterise the effect of clay minerals on copper flotation. It was found that bentonite and kaolin caused different issues in the process of flotation. Increasing the proportion of bentonite reduced the amount of froth on the top of slurry and decreased the copper recovery. On the other hand, increasing the kaolin content mainly decreased the copper grade with little effect on copper recovery and the bubbles on the top of froth became smaller with higher froth stability. The different roles of bentonite and kaolin in the flotation were associated with their unique properties. The findings in this study suggest that to mitigate the negative effect of clay minerals, different approaches might be applied according to specific problems caused by different clay minerals.
Keyword Clay minerals
Copper flotation
Entrainment
Froth
Slurry rheology
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2016 Collection
 
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Created: Thu, 11 Jun 2015, 10:29:14 EST by Dr Yongjun Peng on behalf of School of Chemical Engineering