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Catalytic amination of 2,6-dimethylphenol to 2,6-dimethylaniline over Ni–Cu–Cr/γ-Al2O3

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Abstract

A series of transition metal-based catalysts, other than Pd or Pt-based catalysts, were investigated for catalytic amination of 2,6-dimethylphenol to 2,6-dimethylaniline in a fixed-bed reactor. Ni–Cu–Cr/γ-Al2O3 yielded satisfactory results with 82.08 % conversion and 47.24 % selectivity. The catalysts were characterized by H2-TPR and TEM, and the results obtained showed that the doped Cu and Cr could promote reduction of Ni/γ–Al2O3 and dispersion of the Ni. Reaction conditions, including reaction temperature, flow rate of hydrogen, and ammonia, were studied.

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Authors and Affiliations

  1. School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People’s Republic of China

    Huabang Wang, Zhiwei Wu, Liang Lu, Ligong Chen & Yang Li

  2. School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, People’s Republic of China

    Xiangjin Kong

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  1. Huabang Wang
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  2. Zhiwei Wu
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  3. Xiangjin Kong
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  4. Liang Lu
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  5. Ligong Chen
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  6. Yang Li
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Correspondence to Yang Li.

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Wang, H., Wu, Z., Kong, X. et al. Catalytic amination of 2,6-dimethylphenol to 2,6-dimethylaniline over Ni–Cu–Cr/γ-Al2O3 . Res Chem Intermed 39, 1135–1142 (2013). https://doi.org/10.1007/s11164-012-0672-0

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  • DOI: https://doi.org/10.1007/s11164-012-0672-0

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