Method for preparing loaded amorphous nickel-based catalyst
A catalyst and supported technology, which is applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of complex preparation process and large nickel consumption, and achieve simple preparation process, less pollution and easy recycling Effect
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Embodiment 1
[0014] A. Ni(NO 3 ) 2 ·6H 2 O was dissolved in water to form a solution with a solid-liquid ratio of 1:20. Take 40 mL of the solution and add 10 g of Al to it at 50°C 2 O 3 And SiO 2 , And mix thoroughly;
[0015] B. Drying at a constant temperature of 130°C for 12 hours, and then conventional calcination at 500°C for 2.5 hours, and finally passing hydrogen gas at 450°C for 2 hours for reduction treatment to obtain a supported amorphous nickel catalyst.
[0016] Take 1g of catalyst and 50ml of dipentene into a 500ml autoclave. After hydrogenation at a hydrogen pressure of 3.0MPa and a temperature of 170°C for one hour, the reaction is stopped and condensed water is passed to cool the reaction product. The rate is 99.5%, and the yield is 91.2%.
Embodiment 2
[0018] A. Ni(NO 3 ) 2 ·6H 2 O is dissolved in ethanol with a solid-liquid ratio of 1:10 to prepare a solution, take 50 mL of the solution, add 8 g of activated carbon to it at 70°C, and mix thoroughly;
[0019] B. Drying at a constant temperature of 60°C for 48 hours, then conventional calcination at 700°C for 1 hour, and finally at 300°C with hydrogen gas for 1 hour for reduction treatment to obtain a supported amorphous nickel catalyst.
[0020] Take 1g of catalyst and 50ml of dipentene into a 500ml autoclave. After hydrogenation at a hydrogen pressure of 3.0MPa and a temperature of 170°C for one hour, the reaction is stopped and condensed water is passed to cool the reaction product. The rate was 92.6%, and the yield was 71.8%.
Embodiment 3
[0022] A. Ni(NO 3 ) 2 ·6H 2 O was dissolved in ethylene glycol with a solid-liquid ratio of 1:50 to prepare a solution. Take 10 mL of the solution and add 2 g of diatomaceous earth and SiO to it at 30°C. 2 , And mix thoroughly;
[0023] B. Drying at a constant temperature of 100°C for 6 hours, then conventional calcination at 300°C for 5 hours, and finally passing hydrogen gas at 600°C for 5 hours for reduction treatment to obtain a supported amorphous nickel catalyst.
[0024] Take 1g of catalyst and 50ml of dipentene into a 500ml autoclave. After hydrogenation at a hydrogen pressure of 3.0MPa and a temperature of 170°C for one hour, the reaction is stopped and condensed water is passed to cool the reaction product. The rate was 99.0%, and the yield was 79.0%.
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