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硫氧混合铅锌矿中锌的氧化氨浸动力学

贾楠楠 王会刚 郭敏 张梅

贾楠楠, 王会刚, 郭敏, 张梅. 硫氧混合铅锌矿中锌的氧化氨浸动力学[J]. 工程科学学报, 2017, 39(3): 377-382. doi: 10.13374/j.issn2095-9389.2017.03.009
引用本文: 贾楠楠, 王会刚, 郭敏, 张梅. 硫氧混合铅锌矿中锌的氧化氨浸动力学[J]. 工程科学学报, 2017, 39(3): 377-382. doi: 10.13374/j.issn2095-9389.2017.03.009
JIA Nan-nan, WANG Hui-gang, GUO Min, ZHANG Mei. Oxidative ammonia leaching kinetics of zinc extracted from mixed sulfide-oxide lead and zinc ore[J]. Chinese Journal of Engineering, 2017, 39(3): 377-382. doi: 10.13374/j.issn2095-9389.2017.03.009
Citation: JIA Nan-nan, WANG Hui-gang, GUO Min, ZHANG Mei. Oxidative ammonia leaching kinetics of zinc extracted from mixed sulfide-oxide lead and zinc ore[J]. Chinese Journal of Engineering, 2017, 39(3): 377-382. doi: 10.13374/j.issn2095-9389.2017.03.009

硫氧混合铅锌矿中锌的氧化氨浸动力学

doi: 10.13374/j.issn2095-9389.2017.03.009
基金项目: 

国家重点基础研究发展规划资助项目(2014CB643401,2013AA032003);国家自然科学基金资助项目(51372019)

详细信息
  • 中图分类号: TF813

Oxidative ammonia leaching kinetics of zinc extracted from mixed sulfide-oxide lead and zinc ore

  • 摘要: 常压低温条件下在NH3-(NH42SO4体系中使用过硫酸铵作为氧化剂对硫氧混合铅锌矿中的锌进行浸出实验,系统研究了搅拌速度、浸出剂浓度、氧化剂浓度与温度对于锌浸出率的影响.结果表明,在最优条件下锌的浸出率可达93.2%,且浸出过程中几乎没有其他离子进入溶液,实现了锌的选择性高效浸出,从而简化了后续的浸出液净化与材料制备过程.动力学研究表明,硫氧混合铅锌矿中锌的氧化氨浸过程遵循固体产物层扩散控制的未反应核收缩模型,浸出反应的表观活化能为17.89 kJ·mol-1.
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出版历程
  • 收稿日期:  2016-05-31

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