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乙酸铵浸出高炉瓦斯灰中的锌

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马爱元, 郑雪梅, 张利波, 彭金辉, 李志, 李松. 乙酸铵浸出高炉瓦斯灰中的锌[J]. 环境工程学报, 2018, 12(5): 1547-1556. doi: 10.12030/j.cjee.201803033
引用本文: 马爱元, 郑雪梅, 张利波, 彭金辉, 李志, 李松. 乙酸铵浸出高炉瓦斯灰中的锌[J]. 环境工程学报, 2018, 12(5): 1547-1556. doi: 10.12030/j.cjee.201803033
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MA Aiyuan, ZHENG Xuemei, ZHANG Libo, PENG Jinhui, LI Zhi, LI Song. Leaching zinc from blast furnace dust with ammonium acetate[J]. Chinese Journal of Environmental Engineering, 2018, 12(5): 1547-1556. doi: 10.12030/j.cjee.201803033
Citation: MA Aiyuan, ZHENG Xuemei, ZHANG Libo, PENG Jinhui, LI Zhi, LI Song. Leaching zinc from blast furnace dust with ammonium acetate[J]. Chinese Journal of Environmental Engineering, 2018, 12(5): 1547-1556. doi: 10.12030/j.cjee.201803033
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乙酸铵浸出高炉瓦斯灰中的锌

  • 1.

    六盘水师范学院化学与材料工程学院，六盘水 553004

  • 2.

    昆明理工大学非常规冶金教育部重点实验室，昆明 650093

  • 基金项目:

    国家重点基础研究发展计划（973）项目（2014CB643404）

    六盘水师范学院2017年度高层次人才科研启动基金资助项目（LPSSYKYJJ201707）

    六盘水师范学院重点学科建设项目（LPSSYZDPYXK201708）

Leaching zinc from blast furnace dust with ammonium acetate

  • 1.

    School of Chemistry and Materials Engineering, Liupanshui Normol University, Liupanshui 553004, China

  • 2.

    Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming University of Science and Technology, Kunming 650093, China

  • Fund Project:

  • 摘要: 采用NH3-CH3COONH4-H2O体系进行了高炉瓦斯灰提锌工艺研究。结果表明：控制浸出温度45 °C，总氨浓度5 mol·L-1，液固比5:1，[NH3]/[NH4]+摩尔比1:1，搅拌速度300 r·min-1，浸出时间60 min，锌浸出率达77.79%。FT-IR及ESI-MS分析显示羧酸阴离子能结合Zn离子形成复杂的羧酸盐配合物，添加CH3COONH4能促进锌的溶出，XRD、SEM-EDS表征分析显示浸出渣中残留ZnFe2O4是导致锌浸出率低的限制性因素。
    Abstract: Zinc recovery from blast furnace dust (BFD) in NH3-CH3COONH4-H2O system is investigated. It was found that 77.79% of Zn could be dissolved from the BFD under the conditions of total ammonia concentration of 5 mol·L-1, stirring speed of 300 r·min-1, [NH3]/[NH4]+ of 1:1, liquid-solid ratio of 5:1, leaching temperature of 45 °C and leaching time of 60 min. The results of FT-IR and ESI-MS analysis showed that zinc can combine with the carboxylate anion to form Zn-complexes and promote the dissolution of zinc. Compare with the phase and morphology structure of samples before and after leaching by XRD and SEM-EDS, it is found that ZnFe2O4 is the low zinc leaching rate of the main restrictive factors.
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  • 刊出日期:  2018-05-19

乙酸铵浸出高炉瓦斯灰中的锌

  • 1. 六盘水师范学院化学与材料工程学院，六盘水 553004
  • 2. 昆明理工大学非常规冶金教育部重点实验室，昆明 650093
基金项目:

国家重点基础研究发展计划（973）项目（2014CB643404）

六盘水师范学院2017年度高层次人才科研启动基金资助项目（LPSSYKYJJ201707）

六盘水师范学院重点学科建设项目（LPSSYZDPYXK201708）

摘要: 采用NH3-CH3COONH4-H2O体系进行了高炉瓦斯灰提锌工艺研究。结果表明：控制浸出温度45 °C，总氨浓度5 mol·L-1，液固比5:1，[NH3]/[NH4]+摩尔比1:1，搅拌速度300 r·min-1，浸出时间60 min，锌浸出率达77.79%。FT-IR及ESI-MS分析显示羧酸阴离子能结合Zn离子形成复杂的羧酸盐配合物，添加CH3COONH4能促进锌的溶出，XRD、SEM-EDS表征分析显示浸出渣中残留ZnFe2O4是导致锌浸出率低的限制性因素。

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