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Hydrothermal Sulfidation and Flotation of Oxidized Zinc-Lead Ore

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Abstract

The sample with smithsonite and cerussite as the main valuable metal minerals is a carbonate-hosted lead-zinc ore in the current study. Hydrothermal sulfidation of oxidized zinc-lead ore was carried out with a particle size of 74 to 58 μm and the mole ratio of sulfur and zinc of 2.0 at 453 K (180 °C) for 240 minutes, and 73 pct zinc and 86 pct lead sulfidation fraction were achieved. Flotation of the unsulfided sample was ineffective, with less than 55 pct recovery of zinc and lead. After sulfidation, the recoveries of zinc and lead in flotation concentrate were over 92 pct. A flotation concentrate was obtained with zinc and lead content of 41.2 pct and 22.1 pct, respectively.

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Acknowledgments

The authors gratefully acknowledge the NSFC (Natural Science Fund Council, China, 50904030, 51364022) and Yunnnan Province Applied Basic Research Item (project no. 2009ZC010M) for the financial support of this work.

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Authors and Affiliations

  1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, P.R. China

    Cun-Xiong Li (PhD), Chang Wei (PhD), Zhi-Gan Deng (PhD), Xing-Bin Li (PhD), Min-Ting Li (PhD) & Hong-Sheng Xu (PhD)

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  1. Cun-Xiong Li
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  2. Chang Wei
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  3. Zhi-Gan Deng
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Correspondence to Chang Wei.

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Li, CX., Wei, C., Deng, ZG. et al. Hydrothermal Sulfidation and Flotation of Oxidized Zinc-Lead Ore. Metall Mater Trans B 45, 833–838 (2014). https://doi.org/10.1007/s11663-013-9887-8

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