| 一步法催化氧化正辛醇生成正辛酸 |
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| 引用本文： | 纪红兵,钱宇,何笃贵,王乐夫. 一步法催化氧化正辛醇生成正辛酸[J]. 化工学报, 2005, 56(9): 1673-1678 |
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| 作者姓名： | 纪红兵 钱宇 何笃贵 王乐夫 |
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| 作者单位： | 华南理工大学化工学院， 广东 广州 510640;湘南学院化学与生命科学系，湖南 郴州 423000 |
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| 基金项目： | 基金项目：国家自然科学基金项目（20306009、20225620）：广东省自然科学基金项目（31412）. |
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| 摘 要： | 开发了利用分子氧作为惟一氧化剂、高效一步法氧化正辛醇到辛酸的固体Ru-Co(OH)2-CeO2催化剂.使用了XRD和XPS等表征手段分析了老化温度对催化剂结构的影响，认为催化剂中存在CeO2和Co(OH)2两种微晶结构，Ru以较高的四价氧化态很好地分散在催化剂中.元素Ru、Co和Ce之间的协同效应对于在温和条件下从正辛醇到正辛酸一步法转化起着高效的促进作用.该反应的机理为首先从正辛醇到辛醛的β消除，随后从辛醛到正辛酸的自由基历程.
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| 关 键 词： | 正辛醇 一步法氧化 反应机理 |
| 文章编号： | 0438-1157（2005）09-1673-06 |
| 收稿时间： | 2004-09-06 |
| 修稿时间： | 2004-09-062004-11-15 |
Aerobic one-pot oxidation of 1-octanol to octanoic acid |
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| JI Hongbing,QIAN Yu,HE Dugui,WANG Lefu. Aerobic one-pot oxidation of 1-octanol to octanoic acid[J]. Journal of Chemical Industry and Engineering(China), 2005, 56(9): 1673-1678 |
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| Authors: | JI Hongbing QIAN Yu HE Dugui WANG Lefu |
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| Affiliation: | 1. School of Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. Department of Chemistry and Life Science, Xiangnan College, Chenzhou 423000, Hunan, China |
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| Abstract: | Highly efficient heterogeneous one-pot oxidation from 1-octanol to octanoic acid using molecular oxygen as a sole oxidant with Ru-Co(OH)2-CeO2 catalyst was developed.XRD and XPS characterizations were used to analyze the catalyst structure influenced by aging temperature.Two species of crystallines including CeO2 and Co(OH)2 existing in this catalyst were evidenced. Ru was in high oxidation state of quadravalence and well dispersed. The synergism among Ru, Co and Ce components exhibited highly catalytic activity towards one-pot conversion from 1-octanol to octanoic acid under mild condition.Firstly β elimination from 1-octanol to octanal and later radical process from octanal to octanoic acid were plausible reaction mechanism. |
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| Keywords: | 1-octanol one-pot oxidation reaction mechanism |
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