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    余远斌, 杨锦宗, 张淑芬, 张竹霞. 氧气液相氧化对硝基甲苯制取对硝基苯甲酸的研究──Ⅱ:碱浓度对对硝基苯甲酸收率的影响[J]. 北京工业大学学报, 1998, 24(1): 45-48.
    引用本文: 余远斌, 杨锦宗, 张淑芬, 张竹霞. 氧气液相氧化对硝基甲苯制取对硝基苯甲酸的研究──Ⅱ:碱浓度对对硝基苯甲酸收率的影响[J]. 北京工业大学学报, 1998, 24(1): 45-48.
    shu
    She Yuanbin, Yang Jinzong, Zhang Shufen, Zhang Zhuxia. Study on Oxidation of p-Nitrotoluene to p-Nitrobenzoic Acid with Dioxygen Ⅱ. Effect of Alkali Concentrations on Yields of p-Nitrobenzoic Acid[J]. Journal of Beijing University of Technology, 1998, 24(1): 45-48.
    Citation: She Yuanbin, Yang Jinzong, Zhang Shufen, Zhang Zhuxia. Study on Oxidation of p-Nitrotoluene to p-Nitrobenzoic Acid with Dioxygen Ⅱ. Effect of Alkali Concentrations on Yields of p-Nitrobenzoic Acid[J]. Journal of Beijing University of Technology, 1998, 24(1): 45-48.
    shu

    氧气液相氧化对硝基甲苯制取对硝基苯甲酸的研究──Ⅱ:碱浓度对对硝基苯甲酸收率的影响

    Study on Oxidation of p-Nitrotoluene to p-Nitrobenzoic Acid with Dioxygen Ⅱ. Effect of Alkali Concentrations on Yields of p-Nitrobenzoic Acid

      摘要
    • 摘要: 研究了碱浓度对氧气液相氧化对硝基甲苯制取对硝基苯甲酸的影响,发现对硝基苯甲酸的收率随着碱浓度的增加而增加.当碱浓度为4.8mol/L时,以甲醇为溶剂,在50℃、2.0MPa氧压下反应12h可获得81.1%的对硝基苯甲酸收率,粗品纯度可达98.0%以上.

       

      Abstract: The effect of alkali concertrations on the preparation of p-nitrobenzoic acid by oxidation of p-nitrotoluene with dioxygen in liquid phase was ivestigated. As it turned out, the yields of p-nitrobenzoic acid increased with the alkali concentrations increased. p-nitrobenzoic acid in 8.1% yield with a purity more than 98.0% was obtained by using alkali concentration of 4.8 mol/L and methanol as a solvent at 50℃. 2.0Mpa O2 pressure for 12 hrs.

       

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