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过程工程学报 ›› 2016, Vol. 16 ›› Issue (4): 584-589.DOI: 10.12034/j.issn.1009-606X.216125

• 反应与分离 • 上一篇    下一篇

热酸浸出回收黄钾铁矾渣中有价元素

刘鹏飞1,张亦飞2,游韶玮2   

  1. 1. 中国科学院过程工程研究所绿色过程与工程重点实验室
    2. 中国科学院过程工程研究所
  • 收稿日期:2016-01-27 修回日期:2016-03-04 出版日期:2016-08-20 发布日期:2016-10-10
  • 通讯作者: 刘鹏飞 ucaszzu@126.com

Recovery of Valuable Elements in Jaroaite Residue by Hot Acid Leaching

LIU Peng-fei 1,ZHANG Yi-fei 2,YOU Shao-wei 2   

  1. 1. Key Lab. Green Process and Eng., National Eng. Lab. Hydrometall. Cleaner Production Technol., Institute of Process Engineering, Chinese Academy of Sciences
    2. Institute of Process Engineering,Chinese Academy of Sciences
  • Received:2016-01-27 Revised:2016-03-04 Online:2016-08-20 Published:2016-10-10
  • Contact: LIU Peng-fei ucaszzu@126.com

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被引次数

3

摘要： 实验研究了硫酸和盐酸对黄钾铁矾渣中Fe, Si, Zn, Pb的浸出工艺. 结果表明，硫酸浸出黄钾铁矾渣的最佳工艺条件是反应温度95℃、反应时间2 h、搅拌速率300 r/min、硫酸浓度1.2 mol/L、液固质量比100:5，该条件下Fe, Zn的浸出率达80%. 盐酸浸出黄钾铁矾渣的最佳工艺条件是反应温度95℃、盐酸浓度2.8 mol/L、搅拌速率400 r/min、反应时间1.5 h、液固质量比100:5，该条件下Fe, Zn, Pb的浸出率分别达83%, 89%和99%. 采用黄钾铁矾法可将浸出液中的Fe元素沉淀，所得黄钾铁矾渣进行无害化固定处理，得富含Zn元素的溶液.

关键词: 黄钾铁矾渣, 浸出, 硫酸, 盐酸

Abstract: Sulfuric acid and hydrochloric acid were used to research leaching process of Fe, Si, Zn, Pb in jarosite residue. The results showed that sulfuric acid leaching, leaching rate of Fe, Zn reached 80% under the optimum conditions of leaching temperature of 95℃, reaction time of 2 h, stirring speed of 300 r/min, concentration of sulfuric acid of 1.2 mol/L and mass ratio of liquid to solid of 100:5. Hydrochloric acid leaching, leaching rate of Fe, Zn, Pb reached to 83%, 89%, 99% under the optimum conditions of leaching temperature of 95℃, reaction time of 1.5 h, stirring speed 400 r/min, concentration of hydrochloric acid 2.8 mol/L and mass ratio of liquid to solid 100:5. Jarosite was used to get rid of Fe in leaching solution. Jarosite residue can be fixed treatment to finally obtain zn-rich Solution.

Key words: jarosite residue, leaching, sulfuric acid, hydrochloric acid

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