Method for synthesizing anilines and catalyst adopted by same
A technology for aniline compounds and catalysts, which is applied in the field of synthesizing aniline compounds, can solve problems such as increasing the difficulty of operation, and achieve the effects of low cost, short reaction period and high product yield
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024]
[0025] Take 11.3mL Pd(NO 3 ) 2 2H 2 O aqueous solution (0.01mol / L), and weighed 0.388g of silicon carbide, after mixing, stirred at room temperature for 12h, evaporated to dryness, then dried at 110°C for 12h, and finally placed it in a tube furnace at 500°C down, with H 2 / Ar (volume ratio is 5:95) reduction for 5h, the gas flow rate is 20mL / min, can obtain 0.4g metal palladium catalyst supported by silicon carbide with a loading capacity of 3wt%, wherein the palladium nanoparticles have a particle size of 5 nanometers.
[0026] After mixing 0.7g of nitrobenzene and 10mL of absolute ethanol according to a mass ratio of 0.09, add 0.05g of the above-mentioned catalyst (the mass ratio of catalyst to nitrobenzene is 0.071) to form a suspension, which is then transferred to the reactor, and the reaction After the kettle is sealed and purged with hydrogen, maintain the flow rate of hydrogen at normal pressure at 10mL / min (the molar ratio of the total intake air to ni...
Embodiment 2
[0028]
[0029] Take 28.2ml Pd(NO 3 ) 2 2H 2 O aqueous solution (0.01mol / L) and 2.6ml HAuCl 4 Aqueous solution (0.01mol / L), and weighed 0.965g of silicon carbide, after mixing, stirred at room temperature for 12h, evaporated to dryness, then dried at 110°C for 12h, and finally placed it in a tube furnace at 500°C , with H 2 / Ar (volume ratio is 5:95) reduction 5h, gas flow rate is 20mL / min, can obtain the metal palladium-gold catalyst that 1g loading capacity palladium is 3wt%, gold is the silicon carbide support of 0.5wt%, wherein palladium-gold The bimetallic nanoparticles have a particle size of 7 nm.
[0030] After mixing 3g p-nitrotrifluoromethoxybenzene and 10mL absolute ethanol according to the mass ratio of 0.38, add 0.1g of the above-mentioned catalyst (the mass ratio of catalyst to p-nitrotrifluoromethoxybenzene is about 0.033) to form The suspension is then transferred to the reactor, after the reactor is sealed and purged with hydrogen, the flow rate of hyd...
Embodiment 3
[0032]
[0033] Take 6.2ml H 2 PtCl 6 ·6H 2 O aqueous solution (0.01mol / L), and weighed 3.168g of silicon carbide, mixed, stirred at room temperature for 12h, evaporated to dryness, then dried at 110°C for 12h, and finally placed in a tube furnace at 500°C down, with H 2 / Ar (volume ratio: 5:95) reduction for 5 h, the gas flow rate is 20 mL / min, 3.2 g of silicon carbide-supported metal platinum catalyst with a loading capacity of 1 wt % can be obtained, and the particle size of platinum metal nanoparticles is 4 nm.
[0034] After mixing 13g p-nitrotoluene and 60mL distilled water according to the mass ratio of 0.22, add 0.5g of the above-mentioned catalyst (the mass ratio of catalyst to p-nitrotoluene is about 0.038) to form a suspension, which is then transferred to the reactor, and the reaction After the still was sealed and purged with hydrogen, the flow rate of hydrogen under normal pressure was maintained at 35mL / min (the molar ratio of the total gas intake in 70min ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Particle size | aaaaa | aaaaa |
| Particle size | aaaaa | aaaaa |
| Particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More