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2024 | OriginalPaper | Buchkapitel

Extraction of Vanadium from High Calcium and High Phosphorus Vanadium Slag by Magnesiation Roasting-Acid Leaching

verfasst von : Xin-Mian Chen, Hong-Yi Li, Jing Tan, Jie Cheng, Jiang Diao, Bing Xie

Erschienen in: Rare Metal Technology 2024

Verlag: Springer Nature Switzerland

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Abstract

Magnesiation roasting-acid leaching is carried out to extract vanadium from high calcium and high phosphorus vanadium slag (HCPVS). The effects of roasting and leaching conditions on vanadium and phosphorus extraction are studied. In optimal conditions, the extraction efficiency of vanadium reaches 79.7%, and only 35.6% of phosphorus is leached owing to Mg²⁺ inhibiting the leaching of phosphorus. The roasting mechanism is analyzed by XRD and BSE-EDS systematically, best of the vanadium in V-spinel is converted into vanadate, and a small part of vanadium is dissolved into Ca₂SiO₄–Ca₃(PO₄)₂ and CaTiO₃ phase. This work reveals the influence mechanism of Ca₂SiO₄–Ca₃(PO₄)₂ and CaTiO₃ phase on vanadium extraction, providing new insights for vanadium extraction from HCPVS.

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Titel: Extraction of Vanadium from High Calcium and High Phosphorus Vanadium Slag by Magnesiation Roasting-Acid Leaching
verfasst von: Xin-Mian Chen
Hong-Yi Li
Jing Tan
Jie Cheng
Jiang Diao
Bing Xie
Verlag: Springer Nature Switzerland
Buch: Rare Metal Technology 2024
Print ISBN: 978-3-031-50235-4

Electronic ISBN: 978-3-031-50236-1

Copyright-Jahr: 2024
DOI: https://doi.org/10.1007/978-3-031-50236-1_42

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