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To furtherHigh-calcium vanadium slag improveExtraction and stabilize the vanadiumVanadium leachingLeaching rate of high-calcium vanadiumVanadium slagSlags, it is imperative to explore its leachingLeaching mechanism and optimize the leachingLeaching conditions. In this work, the phases change during the leachingLeaching process at different times were studied in depth, and the leachingLeaching conditions were optimized. The results show that as the leachingLeaching time increases, Ca3(VO4)2 continuously reacts with sulfuric acid, and the reaction is complete at 60 min. Under the optimal leachingLeaching conditions (pH of the leachingLeaching liquid = 2.8, Lwater/S ratio of 4:1, leachingLeaching temperature of 50 °C, and leachingLeaching time of 60 min), the leachingLeaching rate of vanadiumVanadium reaches 90.03%.

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Efficient Extraction of Vanadium from Calcification Roasted High-Calcium Vanadium Slag by Sulfuric Acid Leaching

  • 会议论文

  • 发表日期：

    2025年

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  • Jie Cheng,
  • Hong-Yi Li,
  • Zi-Jie Cai,
  • Xin-Mian Chen,
  • Jiang Diao,
  • Bing Xie

摘要

To furtherHigh-calcium vanadium slag improveExtraction and stabilize the vanadiumVanadium leachingLeaching rate of high-calcium vanadiumVanadium slagSlags, it is imperative to explore its leachingLeaching mechanism and optimize the leachingLeaching conditions. In this work, the phases change during the leachingLeaching process at different times were studied in depth, and the leachingLeaching conditions were optimized. The results show that as the leachingLeaching time increases, Ca3(VO4)2 continuously reacts with sulfuric acid, and the reaction is complete at 60 min. Under the optimal leachingLeaching conditions (pH of the leachingLeaching liquid = 2.8, Lwater/S ratio of 4:1, leachingLeaching temperature of 50 °C, and leachingLeaching time of 60 min), the leachingLeaching rate of vanadiumVanadium reaches 90.03%.