| 从废铅膏制备超细碳酸铅的表征及热分解性能研究 |
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| 引用本文： | 朱新锋,杨家宽,杨丹妮,孙晓娟,郭一飞,陈松涛.从废铅膏制备超细碳酸铅的表征及热分解性能研究[J].功能材料,2012,43(17):2343-2346. |
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| 作者姓名： | 朱新锋 杨家宽 杨丹妮 孙晓娟 郭一飞 陈松涛 |
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| 作者单位： | 1. 河南城建学院环境与市政工程系,河南平顶山,467023
2. 华中科技大学环境科学与工程学院,湖北武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目，教育部新世纪人才支持计划资助项目，湖北省自然科学基金(杰出青年基金)重点资助项目 |
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| 摘 要： | 利用废铅膏为原料,采用脱硫、浸出、碳化的湿法工艺制备了超细碳酸铅。碳酸铅为斜方晶体,粒径在0.5～5μm。采用TG-DSC、XRD、SEM对碳酸铅的热分解机理进行研究,结果表明碳酸铅的失重与理论计算相符,整个热处理过程分4个阶段,产物分别是PbCO3.2PbO、α-PbO、Pb3O4和β-PbO。产物PbO为均匀的球形,粒径<0.5μm。
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| 关 键 词： | 废铅膏 超细碳酸铅 表征 氧化铅 热分解 |
Study on characterization and thermal decomposition of ultra-fine carbonated lead powder from lead paste |
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| ZHU Xin-feng,YANG Jia-kuan,YANG Dan-ni,SUN Xiao-juan,GUO Yi-fei,CHEN Song-tao.Study on characterization and thermal decomposition of ultra-fine carbonated lead powder from lead paste[J].Journal of Functional Materials,2012,43(17):2343-2346. |
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| Authors: | ZHU Xin-feng YANG Jia-kuan YANG Dan-ni SUN Xiao-juan GUO Yi-fei CHEN Song-tao |
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| Affiliation: | 1(1.Department of Environmental and Municipal Engineering, Henan University of Urban Construction,Pingdingshan 467023,China; 2.College of Environmental Science and Engineering,Huazhong University of Science & Technology,Wuhan 430074,China) |
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| Abstract: | Lead carbonate was prepared from lead paste in spent lead acid battery with the hydrometallurgy process includes desulphurization,leaching,carbonation.The decomposition of lead carbonate was studied in inert atmospheres using differential thermal analysis and thermogravimetry(TG-DSC),scanning electron microscopy(SEM) and X-ray powder diffraction(XRD).The graphs SEM show the product was hexaganal crystal and the size ranges from 0.5 to 5 μm.The four steps for thermal decomposition of lead carbonate yielded PbCO3·2PbO,α-PbO,Pb3O4,and β-PbO respectively,consistent with curve of TG-DSC.The shape of lead oxide was spheric and its diameter less than 0.5μm. |
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| Keywords: | spent lead paste ultra-fine lead carbonate characterization lead oxide thermal decomposition |
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