Enriching Valuable Elements in Tailings Re-Concentration of Bayan Obo Mine by Direct Reduction

Yin Ju Jiang; Zeng Wu Zhao; Zhang Yin Xu; Bao Wei Li

doi:10.4028/www.scientific.net/AMR.476-478.236

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 476-478Enriching Valuable Elements in Tailings...

Enriching Valuable Elements in Tailings Re-Concentration of Bayan Obo Mine by Direct Reduction

Abstract:

For the re-concentration minerals of RE dressing tailings in Bayan Obo mine, Fe and P compounds were selectively reduced by the methods of coal-based direct reduction in reactionary pot. The metal and slag in sponge iron obtained from reduction was melted and separated. Compared to that in re-concentration minerals, the content of valuable elements oxide in melt-separation slag was enriched to about 2.5 times. Therefore, melt-separation slag can be used as the basic material to extract the valuable elements.

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Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

236-240

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.236

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Online since:

February 2012

Authors:

Yin Ju Jiang, Zeng Wu Zhao, Zhang Yin Xu, Bao Wei Li

Keywords:

Bayan Obo Mine, Direct Reduction, Niobium, Scandium, Titanium

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References

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