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- Title
Catalytic Amination of Octanol for Synthesis of Trioctylamine and Catalyst Characterization.
- Authors
Li, Yunling; Li, Qiuxiao; Zhi, Lifei; Zhang, Minghui
- 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. Graphical Abstract: [Figure not available: see fulltext.][Figure not available: see fulltext.]
- Subjects
AMINATION; TRIOCTYLAMINE; ORGANIC synthesis; OCTYL alcohol; NICKEL catalysts; COPPER catalysts; X-ray photoelectron spectroscopy; TRANSMISSION electron microscopy
- Publication
Catalysis Letters, 2011, Vol 141, Issue 11, p1635
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-011-0686-z