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Catalysis Letters

, 141:1635 | Cite as

Catalytic Amination of Octanol for Synthesis of Trioctylamine and Catalyst Characterization

  • Yunling Li
  • Qiuxiao Li
  • Lifei Zhi
  • Minghui Zhang
Article

Abstract

Synthesis of trioctylamine by the amination of octanol and ammonia under atmospheric pressure over an excellent Ni–Cu catalyst supported on diatomite is studied in this article. The key factor for the synthesis is the preparation of catalyst with a high activity and selectivity. The activity and selectivity can be adjusted by varying the Ni to Cu ratios. The optimum molar ratio of Ni to Cu was 1.25:1. For the catalyst with a Ni/Cu ratio of 1.25:1, the conversion of octanol and the selectivity of trioctylamine reached 100 and 97.3%, respectively, at 5 h. The reaction of dioctylamine with octanol was the rate-determining step for the formation of trioctylamine. The Physical properties of catalysts, such as particle size, Brunauer–Emmett–Teller (BET) surface area, valence state of catalyst elements, morphology and reduction properties of catalysts were investigated by using X-ray diffraction, nitrogen adsorption–desorption isotherms (BET), X-ray photoelectron spectroscopy, Transmission electron microscopy, and temperature programmed reduction, respectively. The reaction scheme of catalytic amination of octanol with ammonia was discussed.

Keywords

Ni/Cu Catalytic amination Octanol Trioctylamine Characterization 

Notes

Acknowledgments

The authors would like to thank China Research Institute of Daily Chemical Industry for fund support and the publication of the present study.

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Yunling Li
    • 1
    • 2
  • Qiuxiao Li
    • 2
  • Lifei Zhi
    • 2
  • Minghui Zhang
    • 2
  1. 1.College of Chemistry and Chemical EngineeringShanxi UniversityTaiyuanPeople’s Republic of China
  2. 2.China Research Institute of Daily Chemical IndustryTaiyuanChina

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