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Volume 26 Issue 1
Jan.  2019
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文章导航 >  矿物冶金与材料学报（英文）  > 2019  >  26(1): 33-40
Zhi-yuan Ma, Yong Liu, Ji-kui Zhou, Mu-dan Liu, and Zhen-zhen Liu, Recovery of vanadium and molybdenum from spent petrochemical catalyst by microwave-assisted leaching, Int. J. Miner. Metall. Mater., 26(2019), No. 1, pp. 33-40. https://doi.org/10.1007/s12613-019-1707-y
Cite this article as:
Zhi-yuan Ma, Yong Liu, Ji-kui Zhou, Mu-dan Liu, and Zhen-zhen Liu, Recovery of vanadium and molybdenum from spent petrochemical catalyst by microwave-assisted leaching, Int. J. Miner. Metall. Mater., 26(2019), No. 1, pp. 33-40. https://doi.org/10.1007/s12613-019-1707-y
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研究论文

Recovery of vanadium and molybdenum from spent petrochemical catalyst by microwave-assisted leaching

  • Guangdong Institute of Resources Comprehensive Utilization, Guangdong Academy of Sciences, Guangzhou 510650, China

  • State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals, Guangzhou 510650, China

  • Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resources, Guangzhou 510650, China

  • 通讯作者:

    Zhi-yuan Ma    E-mail: mzy1988@163.com

  • The study of the leaching of vanadium (V) and molybdenum (Mo) from spent petrochemical catalysts in sodium hydroxide (NaOH) medium was performed using two approaches, namely, conventional leaching and microwave-assisted leaching methods. The influence of microwave power, leaching time, leaching temperature, and NaOH concentration on the leaching efficiency of spent petrochemical catalyst was investigated. Under microwave-assisted conditions (600 W, 10 min, 90℃, 2.0 mol·L-1 NaOH, and 0.20 g·mL-1 solid-liquid ratio), the leaching efficiencies of V and Mo reached 94.35% and 96.23%, respectively. It has been confirmed that microwave energy has considerable potential to enhance the efficiency of the leaching process and reduce the leaching time. It is suggested that the enhancement of the leaching efficiencies of V and Mo can be attributed to the existence of a thermal gradient between solid and liquid and the generation of cracks on the mineral surface.
    • Research Article

    Recovery of vanadium and molybdenum from spent petrochemical catalyst by microwave-assisted leaching

    + Author Affiliations
      Abstract
    • The study of the leaching of vanadium (V) and molybdenum (Mo) from spent petrochemical catalysts in sodium hydroxide (NaOH) medium was performed using two approaches, namely, conventional leaching and microwave-assisted leaching methods. The influence of microwave power, leaching time, leaching temperature, and NaOH concentration on the leaching efficiency of spent petrochemical catalyst was investigated. Under microwave-assisted conditions (600 W, 10 min, 90℃, 2.0 mol·L-1 NaOH, and 0.20 g·mL-1 solid-liquid ratio), the leaching efficiencies of V and Mo reached 94.35% and 96.23%, respectively. It has been confirmed that microwave energy has considerable potential to enhance the efficiency of the leaching process and reduce the leaching time. It is suggested that the enhancement of the leaching efficiencies of V and Mo can be attributed to the existence of a thermal gradient between solid and liquid and the generation of cracks on the mineral surface.
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