Catalyst for synthesizing aniline through nitrobenzene liquid phase hydrogenation and preparation method thereof
A technology of nitrobenzene liquid and catalyst, which is applied to the preparation of amino compounds, catalyst carriers, chemical instruments and methods, etc. It can solve the problems of catalysts such as poor resistance to high-temperature tar poisoning, difficulty in industrial production, and insufficient spreading performance. Industrialization promotion, step simplification, good economical effect
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[0028] Example 1
[0029] This embodiment provides a catalyst for synthesizing aniline by liquid-phase hydrogenation of nitrobenzene. The catalyst raw materials include surface-modified carbon nanotubes and precursor atomized particles containing active components and auxiliary agents. is 3% of the mass of the catalyst, the mass of the auxiliary agent is 1.5% of the mass of the catalyst, the active component is Pt, the auxiliary agent is Ru and Cr, and the mass of Ru is 1.0% of the mass of the catalyst , the mass of Cr is 0.5% of the mass of the catalyst;
[0030] This embodiment provides a method for preparing the catalyst for synthesizing aniline by liquid-phase hydrogenation of nitrobenzene by using carbon nanotubes including surface-modified carbon nanotubes and precursor atomized particles containing active components and auxiliary agents as raw materials, specifically: :
[0031] Step 1. The average particle size of 50g is 12μm, and the specific surface area is 1000cm ...
Example Embodiment
[0037] Example 2
[0038] This embodiment provides a catalyst for synthesizing aniline by liquid-phase hydrogenation of nitrobenzene. The catalyst raw materials include surface-modified carbon nanotubes and precursor atomized particles containing active components and auxiliary agents. is 3% of the mass of the catalyst, the mass of the auxiliary agent is 1% of the mass of the catalyst, the active component is Pt, the auxiliary agent is Ni and W, and the mass of Ni is 0.5% of the mass of the catalyst , the mass of W is 0.5% of the mass of the catalyst;
[0039] This embodiment provides a method for preparing the catalyst for synthesizing aniline by liquid-phase hydrogenation of nitrobenzene by using carbon nanotubes including surface-modified carbon nanotubes and precursor atomized particles containing active components and auxiliary agents as raw materials, specifically: :
[0040] Step 1. The average particle size of 50g is 12μm, and the specific surface area is 1300cm 2 / ...
Example Embodiment
[0046] Example 3
[0047] This embodiment provides a catalyst for synthesizing aniline by liquid-phase hydrogenation of nitrobenzene. The catalyst raw materials include surface-modified carbon nanotubes and precursor atomized particles containing active components and auxiliary agents. is 3% of the mass of the catalyst, the mass of the auxiliary agent is 0.6% of the mass of the catalyst, the active component is Pt, the auxiliary agent is Ru and La, and the mass of Ru is 0.5% of the mass of the catalyst , the mass of La is 0.1% of the mass of the catalyst;
[0048] This embodiment provides a method for preparing the catalyst for synthesizing aniline by liquid-phase hydrogenation of nitrobenzene by using carbon nanotubes including surface-modified carbon nanotubes and precursor atomized particles containing active components and auxiliary agents as raw materials, specifically: :
[0049] Step 1. The average particle size of 50g is 14μm, and the specific surface area is 1400cm ...
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