| 精均苯四甲酸二酐的研制 |
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| 引用本文： | 丁志平,杨晓东,朱智清.精均苯四甲酸二酐的研制[J].涂料工业,2006,36(11):38-41. |
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| 作者姓名： | 丁志平 杨晓东 朱智清 |
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| 作者单位： | 南京化工职业技术学院,南京,210048 |
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| 摘 要： | 开发了一种由均四甲苯空气气相氧化制备均苯四甲酸二酐过程所需的催化剂,该催化剂活性组分为V-Ti-P-Nb。研究了载体种类、活性组分、温度、空速和反应物浓度对工艺结果的影响。同时研究了将粗酐直接利用有机溶剂进行重结晶精制的方法。
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| 关 键 词： | 精均苯四甲酸二酐 均四甲苯 催化剂 有机溶剂 重结晶 |
| 文章编号： | 0253-4312(2006)11-0038-04 |
| 收稿时间： | 07 17 2006 12:00AM |
| 修稿时间： | 2006年7月17日 |
Development of Pure Pyromellitic Dianhyride |
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| Ding Zhiping,Yang Xiaodong,Zhu Zhiqing.Development of Pure Pyromellitic Dianhyride[J].Paint & Coatings Industry,2006,36(11):38-41. |
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| Authors: | Ding Zhiping Yang Xiaodong Zhu Zhiqing |
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| Affiliation: | Nanjing College of Chemical and Technology, Nanjing 210048, China |
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| Abstract: | A catalyst for preparation of pyromellitic dianhyride by catalytic gaseous phase oxidation from durene are developed.The catalyst contains V-Ti-P-Nb as essential active constituent.The influence of carriers,active constituents temperature,air speed and the concentration of the reactants,on the final results was studied through experiments.The obtained crude pyromellitic dianhyride is purified through recrystallisation in an organic solvent. |
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| Keywords: | pure pyromellitic dianhyride durene catalyst organic solvent recrystallisation |
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