Method for synthesizing amine by catalytically reducing nitro compound by supported gold
A nitro compound, supported technology, applied in the field of chemistry, can solve the problems of easily polluted products, low cost, high toxicity of selenium powder, etc., and achieve the effects of environmental friendliness, low reaction corrosion, and light three waste treatment burden
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Embodiment 1
[0019] 1mmol nitrobenzene, 100mg1.5%wt Au / CeO 2 Catalyst, 10mL water, 10mL ethanol, the autoclave temperature is 30 ℃, then after replacing the air in the autoclave with CO, pass into 0.5MPa CO, stir for 10h, and the conversion rate of nitrobenzene into aniline is analyzed by gas chromatography. 99.8% with a selectivity of 99%.
Embodiment 2
[0021] 1mmol nitrobenzene, 100mg1.5%wt Au / TiO 2 Catalyst, 20mL water, the autoclave temperature is 30 ℃, then after replacing the air in the autoclave with CO, feed into 0.5MPa CO, stir for 12h, the conversion rate of nitrobenzene into aniline is 99.4% by gas chromatography analysis results, The selectivity is 99%.
Embodiment 3
[0023] 1mmol nitrobenzene, 100mg 1%wt Au / CeO were charged into a 100mL stainless steel autoclave 2 Catalyst, 10mL of water, 10mL of ethanol, the temperature of the autoclave is 30 °C, and then the air in the autoclave is replaced with CO, then 0.1MPa CO is introduced, stirred for 13h, and the conversion rate of nitrobenzene into aniline is analyzed by gas chromatography. 99.3% with a selectivity of 99%.
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