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<p>The dynamic synergistic adsorption and desorption of vanadium and gallium in Bayer mother liquor were investigated using OH<sup>−</sup> type LSC-600S resin. When the linear flow rate was 0.5&#xa0;mL/min, the H/D ratio was 10, and the temperature was maintained at 55°C, it could be observed that the adsorption rates of vanadium and gallium at a penetration point of 5% were significantly enhanced. Specifically, the dynamic synergistic adsorption rates for vanadium and gallium reached 91.11% and 92.25%, respectively. Under the experimental conditions of an online flow rate of 1&#xa0;mL/min, a hydrogen-to-deuterium ratio (H/D) of 10, and a desorption temperature of 30°C, the concentrations of vanadium, gallium, and aluminum in the desorption solution were determined to be 0.103&#xa0;g/L, 0.366&#xa0;g/L, and 0.562&#xa0;g/L, respectively. SEM and specific surface area testing demonstrated the efficient and synergistic adsorption of vanadium and gallium from Bayer mother liquor by the OH<sup>−</sup> type LSC-600S resin. The synergistic adsorption of vanadium and gallium did not compromise the resin's adsorption capacity for gallium, thereby enabling effective recovery of vanadium. This approach presents a novel avenue for the reclamation of vanadium resources from Bayer mother liquor.</p>

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Basic Research on Dynamic Adsorption and Desorption of Vanadium and Gallium in Bayer Mother Liquor

  • 期刊论文

  • 发表日期：

    2025年4月25日

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  • Hongyu Lu,
  • Xuejiao Cao,
  • Weiguang Zhang,
  • Yibing Li,
  • Yang Chen,
  • Yuping Li,
  • Zewei Wang

摘要

The dynamic synergistic adsorption and desorption of vanadium and gallium in Bayer mother liquor were investigated using OH− type LSC-600S resin. When the linear flow rate was 0.5 mL/min, the H/D ratio was 10, and the temperature was maintained at 55°C, it could be observed that the adsorption rates of vanadium and gallium at a penetration point of 5% were significantly enhanced. Specifically, the dynamic synergistic adsorption rates for vanadium and gallium reached 91.11% and 92.25%, respectively. Under the experimental conditions of an online flow rate of 1 mL/min, a hydrogen-to-deuterium ratio (H/D) of 10, and a desorption temperature of 30°C, the concentrations of vanadium, gallium, and aluminum in the desorption solution were determined to be 0.103 g/L, 0.366 g/L, and 0.562 g/L, respectively. SEM and specific surface area testing demonstrated the efficient and synergistic adsorption of vanadium and gallium from Bayer mother liquor by the OH− type LSC-600S resin. The synergistic adsorption of vanadium and gallium did not compromise the resin's adsorption capacity for gallium, thereby enabling effective recovery of vanadium. This approach presents a novel avenue for the reclamation of vanadium resources from Bayer mother liquor.