The invention discloses an In 2.24 (NCN) 3 Catalytic
nitrobenzene hydrogenation reduction prepares the method for
aniline, and this method uses In 2.24 (NCN) 3 as catalyst, in H 2 Under the condition of 180-200 DEG C for 1-5 hours, the efficient catalytic reduction of
nitrobenzene is realized, the conversion rate of
nitrobenzene reaches 99.9%, and the selectivity of
aniline reaches 99.8%. In which said In 2.24 (NCN) 3 The catalyst uses
indium oxide,
indium iodide,
indium nitrate, and
indium chloride as the indium source, and
melamine and
urea as the
nitrogen source. Firstly, the indium source and the
nitrogen source are fully mixed in the
solvent, then evaporated to
dryness, and roasted at high temperature And get. The preparation method of the catalyst used in the present invention has simple and
safe operation steps, low cost, and a short preparation cycle. The catalyst is used in the reaction of nitrobenzene hydrogenation reduction to
aniline, and realizes efficient catalytic conversion of nitrobenzene, and the structure of the catalyst It is stable and will not lose its activity after repeated recycling.