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Extraction of Sc from Sc-Bearing V–Ti Magnetite Tailings

  • Pyrometallurgical Processing of Secondary Resources
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Abstract

In this study, a magnetic separation–shaking table gravity separation process was used to treat Sc-bearing V–Ti magnetite tailings, and the Sc2O3 content in the Sc concentrate was enhanced from 0.0039 to 0.0061%. The majority of the Sc in the Sc concentrate originates from augite, hornblende, and aluminosilicate. Magnesium chloride and the Sc concentrate were placed in a roasting furnace for chloridizing roasting, causing the partial chlorination of Sc to ScCl3. Sc was extracted from the roasted ore using hydrochloric acid leaching. Sc extraction indices demonstrated 95.12% Sc2O3 leaching efficiency and 0.0011% Sc2O3 content in the acid leaching residue, clearly indicating the extraction of Sc. No noticeable peak of Sc was observed in the spectrum of the acid leaching residue. Most of the Sc in the roasted ores was dissolved as Sc3+, and it entered the liquid phase. The main minerals in the acid leaching residue were Mg2SiO4, CaTiO3, and Fe2SiO4.

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Acknowledgements

This work was funded by the Sichuan Science and Technology Program (Grant Nos. 2021YJ0057, 2021YFG0268, 2019FS0451, and 2019FS0452), the Research Fund Program of Innovation Center of Rare Earth Resources Development and Utilization, China Geological Survey (Grant No. 2021XTZX01), Key Laboratory of Guangdong Provincial Key Laboratory of Radioactive and Rare Resource Utilization (Grant No. 2018B030322009), and the Research Fund Program of Key Laboratory of Sichuan Province for Comprehensive Utilization of Vanadium and Titanium Resources Foundation (Grant No. 2018FTSZ35).

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Authors and Affiliations

  1. Sichuan Provincial Engineering Lab of NonMetallic Mineral Powder Modification and High-Value Utilization, Southwest University of Science and Technology, Mianyang, 621010, China

    Junhui Xiao, Kai Zou, Tao Chen, Yang Peng, Wei Ding, Jinhua Chen, Hong Li & Zhen Wang

  2. Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu, 610041, China

    Junhui Xiao & Bing Deng

  3. Guangdong Provincial Key Laboratory of Radioactive and Rare Resource Utilization, Shaoguan, 512026, China

    Junhui Xiao & Bing Deng

  4. Dongfang Boiler Group Co., Ltd., Zigong, 643001, China

    Junhui Xiao

  5. Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang, 621010, China

    Junhui Xiao, Kai Zou, Tao Chen, Yang Peng, Wei Ding, Jinhua Chen, Hong Li & Zhen Wang

  6. Innovation Center of Rare Earth Resources Development and Utilization, China Geological Survey, Chengdu, 610041, China

    Junhui Xiao

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  1. Junhui Xiao
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  3. Tao Chen
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Correspondence to Junhui Xiao.

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Xiao, J., Zou, K., Chen, T. et al. Extraction of Sc from Sc-Bearing V–Ti Magnetite Tailings. JOM 73, 1836–1844 (2021). https://doi.org/10.1007/s11837-021-04665-3

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  • DOI: https://doi.org/10.1007/s11837-021-04665-3

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