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Minerals 2016, 6(3), 82; https://doi.org/10.3390/min6030082

Pre-Concentration of Vanadium from Stone Coal by Gravity Using Fine Mineral Spiral

1
,
1,2,3,* , 1,2,3
,
1,2,3
and
1
1
College of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
2
Hubei Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, Wuhan 430081, China
3
Hubei Provincial Engineering Technology Research Center of High efficient Cleaning Utilization for Shale Vanadium Resource, Wuhan 430081, China
*
Author to whom correspondence should be addressed.
Academic Editor: Massimiliano Zanin
Received: 3 May 2016 / Revised: 31 July 2016 / Accepted: 1 August 2016 / Published: 4 August 2016
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Abstract

Due to the low grade of V2O5 in stone coal, the existing vanadium extraction technologies face challenges in terms of large handling capacity, high acid consumption and production cost. The pre-concentration of vanadium from stone coal before the extraction process is an effective method to reduce cost. In this study, detailed mineral characterization of stone coal was investigated. It has been confirmed that the vanadium mainly occurs in muscovite and illite. A significant demand for an effective pre-concentration process with simple manipulation for discarding quartz and other gangue minerals is expected. Based on the mineralogical study, a new vanadium pre-concentration process using a fine mineral spiral was investigated. The experimental results showed that the separation process, which was comprised of a rougher and scavenger, could efficiently discard quartz, pyrite and apatite. A final concentrate with V2O5 grade of 1.02% and recovery of 89.6% could be obtained, with 26.9% of the raw ore being discarded as final tailings. View Full-Text
Keywords: pre-concentration; stone coal; mineralogical study; gravity separation; spiral pre-concentration; stone coal; mineralogical study; gravity separation; spiral
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Liu, X.; Zhang, Y.; Liu, T.; Cai, Z.; Sun, K. Pre-Concentration of Vanadium from Stone Coal by Gravity Using Fine Mineral Spiral. Minerals 2016, 6, 82.

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