Metallurgical and Materials Transactions B

, Volume 48, Issue 5, pp 2759–2767 | Cite as

Effect of Mechanical Activation Treatment on the Recovery of Vanadium from Converter Slag

  • Junyi Xiang
  • Qingyun Huang
  • Xuewei LvEmail author
  • Chenguang Bai


The high roasting temperature and low leaching efficiency of vanadium from vanadium-bearing converter slag are regarded as the main factors significantly influencing the application of calcification roasting–acid leaching processes in the cleaner production of vanadium. In this study, a mechanical activation treatment was performed to enhance the extraction of vanadium from converter slag. The enhancement effects obtained from mechanical activation were comprehensively evaluated through indices such as the roasting temperature and leaching efficiency. The effects of mechanical activation time, roasting temperature, leaching temperature, solid to liquid ratio, particle size, and acid concentration on the leaching efficiency were investigated. Microstructure morphology and elemental analyses of the raw materials and leaching residue were also investigated using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The results demonstrated that the mechanical activation significantly decreased the optimum roasting temperature from 1173 K to 1073 K (900 °C to 800 °C) and increased the leaching efficiency from 86.0 to 90.9 pct.



This work was supported by the Natural Science Foundation of China [Grant Numbers 51404047 and 51234010] and the Basic and Frontier Research Program of Chongqing [Grant Number cstc2014jcyjA50011].


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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2017

Authors and Affiliations

  • Junyi Xiang
    • 1
  • Qingyun Huang
    • 2
  • Xuewei Lv
    • 1
    Email author
  • Chenguang Bai
    • 1
  1. 1.School of Materials Science and EngineeringChongqing UniversityChongqingChina
  2. 2.School of Materials and Metallurgical EngineeringChongqing University of Science and TechnologyChongqingChina

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