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    硫氧混合鉛鋅礦中鋅的氧化氨浸動力學

    賈楠楠 王會剛 郭敏 張梅

    賈楠楠, 王會剛, 郭敏, 張梅. 硫氧混合鉛鋅礦中鋅的氧化氨浸動力學[J]. 工程科學學報, 2017, 39(3): 377-382. doi: 10.13374/j.issn2095-9389.2017.03.009
    引用本文: 賈楠楠, 王會剛, 郭敏, 張梅. 硫氧混合鉛鋅礦中鋅的氧化氨浸動力學[J]. 工程科學學報, 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

    硫氧混合鉛鋅礦中鋅的氧化氨浸動力學

    doi: 10.13374/j.issn2095-9389.2017.03.009
    基金項目: 

    國家重點基礎研究發展規劃資助項目(2014CB643401,2013AA032003);國家自然科學基金資助項目(51372019)

    詳細信息
    • 中圖分類號: TF813

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

    • 摘要: 常壓低溫條件下在NH3-(NH42SO4體系中使用過硫酸銨作為氧化劑對硫氧混合鉛鋅礦中的鋅進行浸出實驗,系統研究了攪拌速度、浸出劑濃度、氧化劑濃度與溫度對于鋅浸出率的影響.結果表明,在最優條件下鋅的浸出率可達93.2%,且浸出過程中幾乎沒有其他離子進入溶液,實現了鋅的選擇性高效浸出,從而簡化了后續的浸出液凈化與材料制備過程.動力學研究表明,硫氧混合鉛鋅礦中鋅的氧化氨浸過程遵循固體產物層擴散控制的未反應核收縮模型,浸出反應的表觀活化能為17.89 kJ·mol-1.

       

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    • 文章訪問數:  745
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    出版歷程
    • 收稿日期:  2016-05-31

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