| 高硫铝土矿中硫的赋存状态及除硫(英文) |
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| 引用本文： | 胡小莲,陈文汨,谢巧玲.高硫铝土矿中硫的赋存状态及除硫(英文)[J].中国有色金属学会会刊,2011(7):1641-1647. |
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| 作者姓名： | 胡小莲 陈文汨 谢巧玲 |
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| 作者单位： | 中南大学冶金科学与工程学院;湖南科技大学化学化工学院; |
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| 基金项目： | Project(20971041) supported by the National Natural Science Foundation of China; Project(09B032) supported by Scientific Research Fund of Hunan Provincial Education Department,China |
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| 摘 要： | 采用X射线衍射分析和化学物相定量法研究高硫铝土矿中硫的赋存状态,并对不同形态的硫的脱除方法进行研究。结果表明:高硫铝土矿中硫的存在形态有的以硫化物为主(主要是黄铁矿),有的以硫酸盐为主,不同产地的铝土矿中硫的主要存在形态是不同的,进一步补充了铝土矿中硫的物相存在的规律性。采用X射线衍射结合化学物相定量法能更准确确定高硫铝土矿中硫的存在形态。确定高硫铝土矿中硫的主要存在形态对除硫方法的选择具有理论指导意义。不同形态的硫可以采用不同的除硫方法。采用氧化焙烧能有效脱除高硫铝土矿中硫化物型硫,原矿溶出液中S2-的含量均在1.7g/L以上,而焙烧矿的溶出液中S2-的含量均在0.18g/L以下。通过N2CO3溶液洗涤可以有效脱除矿石中硫酸盐型硫,原矿中全硫含量下降到0.2%以下,符合生产中对矿石中硫含量的要求。
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| 关 键 词： | 高硫铝土矿 硫化物相 氧化焙烧 碳酸钠洗涤 |
Sulfur phase and sulfur removal in high sulfur-containing bauxite |
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| HU Xiao-lian,CHEN Wen-mi,XIE Qiao-ling .School of Metallurgical Science , Engineering,Central South University,Changsha ,China,.School of Chemistry , Chemical Engineering,Hunan University of Science , Technology,Xiangtan.Sulfur phase and sulfur removal in high sulfur-containing bauxite[J].Transactions of Nonferrous Metals Society of China,2011(7):1641-1647. |
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| Authors: | HU Xiao-lian CHEN Wen-mi XIE Qiao-ling School of Metallurgical Science Engineering Central South University Changsha China School of Chemistry Chemical Engineering Hunan University of Science Technology Xiangtan |
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| Affiliation: | HU Xiao-lian1,2,CHEN Wen-mi1,XIE Qiao-ling1 1.School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China,2.School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201 |
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| Abstract: | The sulfur phase in high sulfur-containing bauxite was studied by an X-ray diffraction analysis and a chemistry quantitative analysis.The methods for the removal of different shaped sulfur were also discussed.The results show that sulfur phases in high sulfur-containing bauxites exist in the main form of sulfide sulfur (pyrite) or sulfate sulfur,and the main sulfur forms of bauxites from different regions are not the same.Through a combination of an X-ray diffraction analysis and a chemistry quantitative an... |
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| Keywords: | high sulfur-containing bauxite sulfur phase oxidizing-roasting sodium carbonate solution washing technology |
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