| 锌冶炼废渣浸出液硫化法除砷的研究 |
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| 引用本文： | 高峰,贾永忠,孙进贺,景燕.锌冶炼废渣浸出液硫化法除砷的研究[J].环境工程学报,2011,5(4):812-814. |
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| 作者姓名： | 高峰 贾永忠 孙进贺 景燕 |
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| 作者单位： | 1. 中国科学院青海盐湖研究所,西宁,810008;中国科学院研究生院,北京,100039
2. 中国科学院青海盐湖研究所,西宁,810008 |
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| 基金项目： | 青海省科技支青项目(2008-G-Q40) |
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| 摘 要： | 以硫化钠为沉淀剂,将锌冶炼废渣浸出液中的砷以硫化砷的形式沉淀析出,实验考察了浸出液酸度、硫化钠加入量、反应时间等因素对除砷效率的影响.实验结果表明,当浸出液中游离H2SO4浓度为3 mol/L,Na2S·9H2O投加量为16.1 g/L(浸出液),反应时间为30 min时,浸出液中的砷去除率达到99.3%,较好地解决了...
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| 关 键 词： | 浸出液 硫化钠 除砷 |
Study on arsenic removal from acid-leaching solution of zinc smelter slag with sulfide precipitation process |
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| Gao Feng,Jia Yongzhong,Sun Jinhe and Jing Yan.Study on arsenic removal from acid-leaching solution of zinc smelter slag with sulfide precipitation process[J].Techniques and Equipment for Environmental Pollution Control,2011,5(4):812-814. |
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| Authors: | Gao Feng Jia Yongzhong Sun Jinhe and Jing Yan |
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| Abstract: | A method of using Na2S as precipitation reagent for eliminating arsenic from leaching solution of zinc smelter slag was studied. The effects of acidity, dosages of Na2S, reaction time and so on were investigated. The results indicated that the optimum conductions were as follows: the dosages of Na2S, 16.1 g/L(acid leaching solution); H2SO4, 3 mol/L; reaction time, 30 min. The arsenic removal rate could reach 99.3%, so the method could prevent AsH3 gas efficiently in the process of extracting of indium. |
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| Keywords: | acid-leaching solution Na2S arsenic removal |
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