Importance of oxidation during regrinding of rougher flotation concentrates with a high content of sulfides

Chen, Xumeng, Seaman, David, Peng, Yongjun and Bradshaw, Dee (2014) Importance of oxidation during regrinding of rougher flotation concentrates with a high content of sulfides. Minerals Engineering, 66 165-172. doi:10.1016/j.mineng.2014.04.014


Author Chen, Xumeng
Seaman, David
Peng, Yongjun
Bradshaw, Dee
Title Importance of oxidation during regrinding of rougher flotation concentrates with a high content of sulfides
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
1872-9444
Publication date 2014-05-03
Sub-type Article (original research)
DOI 10.1016/j.mineng.2014.04.014
Volume 66
Start page 165
End page 172
Total pages 8
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Abstract The objective of this study is to understand the flotation behavior of copper and gold minerals after regrinding the rougher flotation concentrate with a high pyrite content. It was found that low Eh and dissolved oxygen (DO) were produced after regrinding due to the quick consumption of oxygen by the large amount of fresh pyrite surfaces created, resulting in poor flotation of copper and gold and their selectivity against pyrite. A number of methods were used to provide an oxidizing condition, including pre-aeration before flotation, regrinding in an oxidizing condition, and addition of different oxidizing agents during regrinding. It was found that all the oxidizing methods improved the flotation of copper and gold, however, the effectiveness of these methods varied from case to case. This study demonstrates the importance of oxidation during or after regrinding for the flotation of rougher flotation concentrates with high sulfide contents.
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 2015 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 14 May 2014, 00:00:31 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre