Amorphous metal catalyst and preparation method of aluminum alkoxide
A technology of metal catalysts and amorphous alloys, which is applied in the preparation of metal alcohols, alumina/hydroxides, Raney-type catalysts, etc., and can solve problems such as environmental water quality impacts and difficult high value-added applications
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Embodiment 1
[0022] Take 500g of nickel powder, 430g of aluminum powder, Mo: 10g, Cr: 20g, Fe: 20g, Cu: 20g, mix them into a high-frequency melting furnace, set the program at 800°C for 1h, and finally raise the temperature to 1800°C for 2h, The alloy melt is obtained, and the alloy melt is sprayed on a rotating single copper roller. After rapid condensation, the metal liquid is quickly thrown away from the copper roller to form a micron-sized amorphous alloy. The alloy was crushed and sieved to obtain alloy powder F-1 with a particle size of 100-200 mesh. Take 70g of this alloy powder and slowly add it to an extraction device equipped with 250g of isopropanol, heat it to 85°C, and react for 4 hours. After the reaction, filter to obtain 37.1g of solid catalyst, which is preserved with ethanol and marked as S-1, this is an amorphous nickel catalyst, the liquid is distilled and rectified to obtain 173g of aluminum isopropoxide, which is marked as Y-1.
Embodiment 2
[0024] Take 460g of nickel powder, 480g of aluminum powder, Mo: 20g, Cr: 30g, Fe: 10g, mix them into a high-frequency melting furnace, set the program at 800°C for 1h, and finally raise the temperature to 1800°C for 2h to obtain an alloy melt. The alloy melt is sprayed on the rotating single copper roller, and the metal liquid is quickly condensed and then thrown away from the copper roller to form a micron-sized amorphous alloy. The alloy is crushed and sieved to obtain alloy powder with a particle size of 100-200 mesh. Take 70g of this alloy powder and slowly add it to an extraction device equipped with 300g of isopropanol, heat it to 90°C, and react for 3 hours. After the reaction is completed, filter it to obtain 35.2g of solid catalyst, and store it with ethanol, marked as S-2, this is an amorphous nickel catalyst, the liquid is distilled and rectified to obtain aluminum isopropoxide 193 g , labeled Y-2.
Embodiment 3
[0026] To prepare alloy powder, the procedure is the same as in Example 2. Slowly add 70g of this alloy powder into a three-necked flask filled with sec-butanol (300g), heat and stir, the reaction temperature is 95°C, and the reaction time is 20h. After the reaction is completed, carry out Filter to obtain 37g of solid catalyst, which is an amorphous nickel catalyst, and the liquid is distilled and rectified to obtain 200g of aluminum sec-butoxide.
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