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Separation of Molybdenum from Tungstate Solution—Scavenging Thiomolybdate by Copper Compound

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Abstract

Molybdenum is frequently associated with tungsten in mineral deposits, and their chemical properties are quite similar. Therefore, for many years, removal of impurity molybdenum from tungsten has been a worldwide technical problem. In this work, a separation process was investigated with the use of copper-bearing materials as the scavenging agents. Various conditions involved in the effects of different copper-bearing materials, dosage of scavenging agents, reaction time, and temperature were studied in detail. It was found that thiomolybdate can be selectively precipitated from tungstate solution by all the scavenging agents, especially when using nascent copper sulfide. Removal of thiomlybdate can reach 99.45 pct under optimum condition. Nascent CuS is an economic and efficient reagent for removing Mo from tungstate solution.

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Acknowledgment

This work has been jointly supported by the National High-tech R&D Programs of China (No. 2007AA06Z129) and the National Natural Science Fund of China (No.50974137).

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Authors and Affiliations

  1. School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, Hunan, P.R. China

    Zhongwei Zhao, Lili Gao, Caifang Cao, Jiangtao Li, Xingyu Chen, Ailiang Chen, Xuheng Liu, Peimei Sun, Guangsheng Huo, Yunjiao Li & Honggui Li

  2. Key Laboratory of Hunan Province for Metallurgy and Material Processing of Rare Metals, Changsha, 410083, Hunan, P.R. China

    Zhongwei Zhao, Lili Gao & Jiangtao Li

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  1. Zhongwei Zhao
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  2. Lili Gao
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  3. Caifang Cao
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  4. Jiangtao Li
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  5. Xingyu Chen
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  7. Xuheng Liu
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  8. Peimei Sun
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  9. Guangsheng Huo
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  10. Yunjiao Li
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  11. Honggui Li
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Correspondence to Zhongwei Zhao.

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Manuscript submitted March 20, 2011.

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Zhao, Z., Gao, L., Cao, C. et al. Separation of Molybdenum from Tungstate Solution—Scavenging Thiomolybdate by Copper Compound. Metall Mater Trans B 43, 1284–1289 (2012). https://doi.org/10.1007/s11663-012-9743-2

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  • DOI: https://doi.org/10.1007/s11663-012-9743-2

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