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Separation Science and Technology Volume 50, 2015 - Issue 11
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Magnetic Separations

Processing of Lean Iron Ores by Dry High Intensity Magnetic Separation

Huifen ZhangDepartment of Land Resource Engineering, Yunnan Tin College of Vocation and Technology, Gejiu, Yunnan, P. R. ChinaView further author information
,
Luzheng ChenState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunuming, Yunnan, P. R. ChinaCorrespondence[email protected]
View further author information
,
Jianwu ZengState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunuming, Yunnan, P. R. ChinaView further author information
,
Li DingState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunuming, Yunnan, P. R. ChinaView further author information
&
Jian LiuState Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunuming, Yunnan, P. R. ChinaView further author information
Pages 1689-1694 | Received 08 May 2014, Accepted 15 Oct 2014, Published online: 29 Jun 2015
 
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Abstract

Dry high intensity magnetic separation (DHIMS) is investigated to process a lean hematite ore. It was found that the feed particle size and the drum rotation speed have significant influences on the separation performance, and a magnetic concentrate assaying 36.22% Fe with 75.97% recovery is achievable from the ore assaying 29.14% Fe at a coarse particle size below 10 mm. While the DHIMS is applied to process a lean limonite ore, a similar separation phenomenon is observed to that of the hematite ore. It was concluded that DHIMS may significantly improve the economic viability for exploration of lean iron ores.

Additional information

Funding

This research work was supported by the Educational Key Program of Yunnan Province of China (Grant No. 2014C009Z) and the Major Technical Equipment Innovation Development and Industrialization Project of Sichuan Province (Grant No. 2014ZZ059).

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