| 甲基丙烯基醛和甲基乙烯基酮水相臭氧化反应 |
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| 引用本文： | 朱李华,陈忠明.甲基丙烯基醛和甲基乙烯基酮水相臭氧化反应[J].环境科学,2005,26(3):83-86. |
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| 作者姓名： | 朱李华 陈忠明 |
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| 作者单位： | 北京大学环境学院,环境模拟与污染控制国家联合重点实验室,北京,100871;北京大学环境学院,环境模拟与污染控制国家联合重点实验室,北京,100871 |
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| 基金项目： | 国家自然科学青年基金项目(20107001);国家重点基础研究发展规划项目(2002CB410802);教育部优秀青年教师资助计划项目 |
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| 摘 要： | 利用实验室模拟的方法研究了甲基丙烯基醛(MAC)和甲基乙烯基酮(MVK)在大气水相中的臭氧化反应,测定了250℃±0.1℃温度和1.0×105Pa空气压力条件下生成过氧化物和二次羰基物的种类和产率.结果表明,MAC水相臭氧化生成2种羰基物(甲醛和丙酮醛)和2种过氧化物,即过氧化氢(H2O2)和羟甲基过氧化氢(HOCH2OOH ,HMHP) ,它们的产率(%)分别为49.9±2.9、26.6±3.9、4.6±0.4和10.0±0.8;同MAC类似,MVK水相臭氧化也生成甲醛、丙酮醛、H2O2和HMHP ,它们的产率(%)分别为40.8±2.2、40.7±35、6.8±0.5和10.4±0.8.对MAC和MVK水相臭氧化反应机理进行了推测,解释了各产物的生成.
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| 关 键 词： | 甲基丙烯基醛 甲基乙烯基酮 臭氧化 水相反应 过氧化物 羰基物 |
| 文章编号： | 0250-3301(2005)03-0083-04 |
| 收稿时间： | 6/8/2004 12:00:00 AM |
| 修稿时间： | 2004/9/20 0:00:00 |
Ozonolysis of Methacrolein and Methyl Vinyl Ketone in Aqueous Solutions |
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| ZHU Li-hua and CHEN Zhong-ming.Ozonolysis of Methacrolein and Methyl Vinyl Ketone in Aqueous Solutions[J].Chinese Journal of Environmental Science,2005,26(3):83-86. |
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| Authors: | ZHU Li-hua and CHEN Zhong-ming |
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| Institution: | The State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Science, Peking University, Beijing 100871, China. |
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| Abstract: | The experimental simulation was employed to study the aqueous-phase ozonolysis reactions of methacrolein (MAC) and methyl vinyl ketone (MVK) in the atmosphere, at the 25.0 degrees C +/- 0.1 degree C temperature and 1.0 x 10(5) Pa pressure of air. In both MAC and MVK ozonolysis reactions in water, formaldehyde, methylglyoxal, hydrogen peroxides (H2O2) and hydroxymethyl hydroperoxides (HMHP) were found; and their yields (%) were determined: 49.9 +/- 2.9, 26.6 +/- 3.9, 4.6 +/- 0.4 and 10.0 +/- 0.8 respectively for MAC; 40.8+/- 2.2, 40.7 +/- 3.5, 6.8 +/- 0.5 and 10.4 +/- 0.8 respectively for MVK. Finally, the reaction mechanisms are deduced to explain the formation of products observed. |
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| Keywords: | methacrolein methyl vinyl ketone ozonolysis aqueous phase reaction peroxides carbonyl compounds |
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