Effect of regrinding conditions on the rejection of pyrite in the cleaner stage

Chen, Xumeng, Peng, Yongjun and Bradshaw, Dee J. (2012). Effect of regrinding conditions on the rejection of pyrite in the cleaner stage. In: Pradip (Conference President), XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings. XXVI International Mineral Processing Congress - IMPC 2012, New Delhi, India, (877-887). 24-28 September 2012.

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Name Description MIMEType Size Downloads
Author Chen, Xumeng
Peng, Yongjun
Bradshaw, Dee J.
Title of paper Effect of regrinding conditions on the rejection of pyrite in the cleaner stage
Conference name XXVI International Mineral Processing Congress - IMPC 2012
Conference location New Delhi, India
Conference dates 24-28 September 2012
Proceedings title XXVI International Mineral Processing Congress - IMPC 2012: Conference Proceedings
Journal name 26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - Conference Proceedings
Place of Publication New Delhi, India
Publisher Technowrites
Publication Year 2012
Sub-type Fully published paper
ISBN 8190171437
Editor Pradip (Conference President)
Start page 877
End page 887
Total pages 11
Collection year 2013
Language eng
Abstract/Summary In this study, the effect of different regrinding conditions on the depression of fine pyrite at the cleaner stage was investigated. The regrinding condition was manipulated by different grinding media (stainless steel and mild steel). It was found that, after regrinding with mild steel grinding media, the flotation recovery of pyrite is much lower than with stainless steel grinding media, and it is more difficult to restore by adding more collector. This means, regrinding with mild steel grinding media may depress the pyrite flotation more strongly. The copper activation of pyrite during regrinding was also studied. It was found, that the mild steel grinding media is more beneficial to copper activation than stainless steel media. Additionally, the analysis of pyrite recovery based on the particle size indicated, that the fine particles are more susceptible to different grinding environments than intermediate and coarse particles and therefore are more easily depressed with a much lower flotation recovery.
Keyword Regrinding
Pyrite depression
Flotation
Grinding media
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Mon, 08 Oct 2012, 12:01:15 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre