| 钼铁催化剂上对二甲苯气相选择性氧化合成对苯二甲醛的研究 |
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| 引用本文： | 刘自力,贾太轩,陈胜洲,李树华,张官云.钼铁催化剂上对二甲苯气相选择性氧化合成对苯二甲醛的研究[J].工业催化,2008,16(10):135. |
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| 作者姓名： | 刘自力 贾太轩 陈胜洲 李树华 张官云 |
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| 作者单位： | 1.广州大学化学化工学院，广东 广州 510006; 2.广西大学化学化工学院，广西 南宁 530004; 3.广州赫尔普化工有限公司，广东 广州 510725 |
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| 摘 要： | 采用溶胶-凝胶法合成了钼铁催化剂，通过该催化剂，利用空气中的O2进行对二甲苯选择性氧化，制备出对苯二甲醛。催化剂的活性评价结果表明,在n(Mo)∶n(Fe)∶n(Co)=2.4∶1∶0.02和焙烧温度500 ℃条件下，催化剂的活性最高；反应温度为500 ℃和空速5 500 h-1时，对苯二甲醛的收率达到59.2%。FT-IR和XRD结果证实,催化剂的活性组分为Fe2(MoO4)3与少量的MoO3，二者具有协同作用。
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| 关 键 词： | 催化化学 选择性氧化 对二甲苯 对苯二甲醛 钼铁催化剂 |
Preparation of terephthaldehyde via gas-phash selective oxidation of p-xylene over Mo-Fe catalysts |
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| LIU Zili,JIA Taixuan,CHEN Shengzhou,LI Shuhua,ZHANG Guanyun.Preparation of terephthaldehyde via gas-phash selective oxidation of p-xylene over Mo-Fe catalysts[J].Industrial Catalysis,2008,16(10):135. |
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| Authors: | LIU Zili JIA Taixuan CHEN Shengzhou LI Shuhua ZHANG Guanyun |
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| Affiliation: | 1.College of Chemistry & Chemical Engineering, Guangzhou University, Guangzhou 510006, Guangdong,China; 2.College of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, Guangxi,China; 3.Guangzhou Hirp Chemical Co., Ltd, Guangzhou 510725, Guangdong,China |
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| Abstract: | Mo Fe catalysts were prepared by sol gel method. The effects of atomic ratio in the catalysts, calcination temperature and GHSV on the behaviors of the catalysts for selective oxidation of p xylene to terephthaldehyde(TPAL) were investigated. The activity test results showed that the optimum condition was as follows:n(Mo)∶n(Fe)∶n(Co)=2.4∶1∶0.02, calcination temperature 500 ℃, GHSV 5500 h-1. Terephthaldehyde yield of 59.2% was attained under the optimal condition. XRD and FT IR results showed that the active components were Fe2(MoO4)3 and MoO3, which had synergistic effects during oxidation of p xylene. |
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| Keywords: | selective oxidation p xylene terephthaldehyde molybdenum cobalt catalyst catalytic chemistry |
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