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申星梅,李乐,彭倩柔,等. 机械活化微波协同强化铟铁酸锌中铟的浸出[J]. 安徽工业大学学报(自然科学版),2024,41(3):242-247. doi: 10.12415/j.issn.1671-7872.23142
引用本文: 申星梅,李乐,彭倩柔,等. 机械活化微波协同强化铟铁酸锌中铟的浸出[J]. 安徽工业大学学报(自然科学版),2024,41(3):242-247. doi: 10.12415/j.issn.1671-7872.23142
SHEN Xingmei, LI Le, PENG Qianrou, SHEN Chengyi, CAO Fabin, WU Xingrong. Leaching of Indium from Zinc Indium Ferrite under the Synergistic Enhancement of Microwave and Mechanical Activation[J]. Journal of Anhui University of Technology(Natural Science), 2024, 41(3): 242-247. DOI: 10.12415/j.issn.1671-7872.23142
Citation: SHEN Xingmei, LI Le, PENG Qianrou, SHEN Chengyi, CAO Fabin, WU Xingrong. Leaching of Indium from Zinc Indium Ferrite under the Synergistic Enhancement of Microwave and Mechanical Activation[J]. Journal of Anhui University of Technology(Natural Science), 2024, 41(3): 242-247. DOI: 10.12415/j.issn.1671-7872.23142

机械活化微波协同强化铟铁酸锌中铟的浸出

Leaching of Indium from Zinc Indium Ferrite under the Synergistic Enhancement of Microwave and Mechanical Activation

  • 摘要: 针对常规酸浸提铟浸出率较低的问题,采用机械活化和微波协同强化的方法对铟铁酸锌中的铟进行酸浸提取,分析机械活化前后铟铁酸锌的晶格结构变化,研究不同工艺因素对铟铁酸锌中铟浸出行为的影响规律,并对机械活化微波协同下的铟浸出过程进行动力学分析。结果表明:机械活化后,铟铁酸锌的晶体结构被破坏,衍射峰强度降低、峰型宽化,晶粒尺寸减小,晶格应变增加;常规条件下,铟浸出率在低温低酸时最高仅59.2%,高温高酸时达92.0%(150 min);微波、机械活化分别单独及协同作用时,低温低酸下铟浸出的促进不明显,而高温高酸下浸出率均达到100%,但时间分别逐渐减少为120,90,60 min,机械活化与微波的协同作用可显著提升铟的浸出效率;表面化学反应控制模型比较适用于机械活化微波协同下铟浸出的动力学过程。

     

    Abstract: In response to the problem of low indium leaching efficiency in conventional acid leaching processes, a method of the mechanical activation and microwave synergistic enhancement was adopted to extract indium from zinc indium ferrite through acid leaching. The lattice structure changes of zinc indium ferrite before and after mechanical activation were analyzed, and the influence of different process factors on the leaching behavior of indium from zinc indium ferrite was studied. The kinetics of indium leaching process under mechanical activation and microwave synergistic enhancement was also analyzed. The results show that after mechanical activation, the crystal structure of zinc indium ferrite is destroyed, the diffraction peak intensity decreases, the peak pattern widens, the grain size decreases, and the lattice strain increases. Under the conventional conditions, the highest indium leaching rate is only 59.2% at the low temperature and low aci, and 92.0% at the high temperature and acid (150 min). When microwave and mechanical activation act separately and synergistically, the promotion of indium leaching rate at low temperature and low acid is not significant, while the leaching rate under high temperature and high acid conditions reaches 100%, and the time gradually decreases to 120, 90, and 60 min, respectively. The synergistic effect of mechanical activation and microwave significantly improves the efficiency of indium leaching. The surface chemical reaction control model is suitable for the kinetic process of indium leaching under the synergistic effect of mechanical activation and microwave.

     

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