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| 氧气直接催化氧化苯酚合成对苯醌 | |
| 引用本文： | 宋伟,李祥斌,李翔,张凌伟,索全伶,魏雄辉.氧气直接催化氧化苯酚合成对苯醌[J].精细石油化工,2008,25(3). |
| 作者姓名： | 宋伟 李祥斌 李翔 张凌伟 索全伶 魏雄辉 |
| 作者单位： | 1. 内蒙古工业大学化工学院,内蒙古,呼和浩特,010051 2. 北京博源恒升高科技有限公司,北京,100080 3. 北京大学化学与分子工程学院应用化学系,北京,100080 |
| 摘 要： | 以乙醇为溶剂,铜锂复合金属离子为催化剂,用氧气直接催化氧化苯酚合成对苯醌。考察了催化剂配比、催化剂与苯酚质量比、反应压力、反应温度和反应时间对苯酚催化氧化反应的影响。确定了苯酚催化氧化制备对苯醌的最优工艺条件为:n(Cu~(2+)):n(Li~+)=1:3,m(催化剂):m(苯酚)=1:2,温度80℃,压力2.7 MPa,反应时间3 h。在此反应条件下,苯酚转化率达85.50%,对苯醌选择性可达83.15%。 |
| 关 键 词： | 苯酚 对苯醌 催化氧化 铜锂复合金属离子 选择性 |
DIRECT CATALYTIC OXIDATION OF PHENOL TO BENZOQUINONE BY OXYGEN |
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| Song Wei,Li Xiangbin,Li Xiang,Zhang Lingwei,Suo Quanling,Wei Xionghui.DIRECT CATALYTIC OXIDATION OF PHENOL TO BENZOQUINONE BY OXYGEN[J].Speciality Petrochemicals,2008,25(3). | |
| Authors: | Song Wei Li Xiangbin Li Xiang Zhang Lingwei Suo Quanling Wei Xionghui |
| Abstract: | The direct oxidation of phenol to benzoquinone by oxygen in ethanol solution was studied with Cu~(2+)/Li~+ complex metal ions as catalysts.The optimum reaction conditions were obtained as follows: Cu~(2+) to Li~+ molar ratio 1:3,mass ratio of catalyst to phenol 1:2,reaction temperature 80℃,reaction pressure 2.7 MPa and reaction time 3 h.Under these conditions,85.50%conversion of phenol and 83.15%selectivity of benzoquinone were obtained. |
| Keywords: | phenol benzoquinone catalytic oxidation Cu~(2+)/Li~+ complex metal ions selectivity |
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