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| 氯化汞触媒的汞挥发速率 | |
| 引用本文： | 田祎,邢奕,刘景洋,菅小东. 氯化汞触媒的汞挥发速率[J]. 北京科技大学学报, 2012, 34(8): 939-942 |
| 作者姓名： | 田祎 邢奕 刘景洋 菅小东 |
| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京100083／中国环境科学研究院清洁生产与循环经济研究中心,北京100012／环境保护部化学品登记中心,北京100012 2. 北京科技大学土木与环境工程学院,北京,100083 3. 中国环境科学研究院清洁生产与循环经济研究中心,北京,100012 4. 环境保护部化学品登记中心,北京,100012 |
| 基金项目： | 环境保护部公益资助项目 |
| 摘 要： | 采用通量箱、比表面积分析仪、扫描电子显微镜和x射线光电子能谱仪测试了电石法聚氯乙烯（PVC）行业中高汞触媒、低汞触媒和废高汞触媒的汞挥发速率、比表面积、成分及汞形态．研究表明：高汞触媒、低汞触媒和废高汞触媒的汞挥发速率分别为1．04×10^-7、5．90×10^-8和2．47×10^-4mg·g^-1·min^-1．高汞触媒使用后氯化汞被还原为单质汞，且汞吸附于触媒表面，导致废高汞触媒汞挥发速率远高于新汞触媒． |
| 关 键 词： | 触媒 氯化汞 挥发 吸附 汞 |
Mercury evaporation rate of mercury chloride catalysts |
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| TIAN Yi,XING Yi,LIU Jing-yang,JIAN Xiao-dong. Mercury evaporation rate of mercury chloride catalysts[J]. Journal of University of Science and Technology Beijing, 2012, 34(8): 939-942 | |
| Authors: | TIAN Yi XING Yi LIU Jing-yang JIAN Xiao-dong |
| Affiliation: | 1) School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2) Center of Cleaner Production and Circular Economy Research,Chinese Research Academy of Environmental Sciences,Beijing 100012 China 3) Chemical Registration Center,Ministry of Environmental Protection,Beijing 100012,China |
| Abstract: | The mercury evaporation rate,specific surface area,catalyst composition,and mercury form of high-,low-,and waste high-mercury catalysts in the acetylene PVC industry were tested by the dynamic flux chamber,specific surface area analyzer,scanning electron microscopy and X-ray photoelectron spectroscopy,respectively.It is shown that the mercury evaporation rates of the high-,low-,and waste high-mercury catalysts are 1.04×10-7,5.90×10-8,and 2.47×10-4 mg·g-1·min-1,respectively.Mercury chloride is reduced to elemental mercury after the high-mercury catalyst is used,and mercury is adsorbed on the surface of the waste mercury catalyst,causing the mercury evaporation rate of the waste high-mercury chloride catalyst much higher than that of the new. |
| Keywords: | catalysts mercury chloride evaporation adsorption mercury |
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