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对硝基甲苯的非均相催化氧化研究

Keywords: 四羧基钴酞菁,活性炭,催化氧化,对硝基苯甲酸

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Abstract:

为寻求绿色的对硝基甲苯氧化工艺,采用负载在活性炭表面上的四羧基钴酞菁为催化剂,研究了对硝基甲苯在碱性介质中的非均相氧气液相氧化反应,发现负载的四羧基钴酞菁的催化活性明显优于未负载的四羧基钴酞菁,而且活性炭载体的比表面积越大,催化效果越好.在55℃、2.0MPa氧气压力下,对硝基苯甲酸的收率达到87.6%.该氧化方法工艺简便、产物易分离,因此具有良好的潜在应用前景.

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