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Kinetics of aniline oxidation with chlorine dioxide 被引量:4
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作者 fanzhi-yun HUANGJun-li +3 位作者 WANGPeng SULi-qiang ZHENGYong-jie LIYing-jie 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2004年第2期238-241,共4页
For the first time, kinetics of aniline oxidation with chlorine dioxide(ClO 2) were investigated systematically by detecting concentration of aniline with HPLC at regular intervals. Results showed that the reaction w... For the first time, kinetics of aniline oxidation with chlorine dioxide(ClO 2) were investigated systematically by detecting concentration of aniline with HPLC at regular intervals. Results showed that the reaction was first-order both in ClO 2 and in aniline, and the oxidation reaction could be described as second-order reaction. Stoichiometric factor η was experimentally determined to be 2 44. The second-order-reaction rate constant k was 0 11 L/(mol·s) under condition of pH 6 86 and water temperature(T w) 287K. Reaction activation energy was 72 31 kJ/mol, indicating that the reaction could take place under usual water treatment conditions. The reaction rate constants in acidic and alkali media were greater than that in neutral medium. Chlorite ion could slightly increase reaction rate in acidic medium. p-aminophenol and azobenzene were detected by GC-MS as intermediates. 展开更多
关键词 chlorine dioxide ANILINE KINETICS
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