A kind of confined bimetallic spherical catalyst and its preparation method and use
A catalyst and bimetallic technology, applied in the field of bimetallic spherical catalysts, can solve the problems of toxicity and equipment corrosiveness, impure product aroma, difficult product separation, etc., achieving considerable selectivity, easy industrial scale-up production, and simple process Effect
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Embodiment 1
[0053] Weigh 9.138g of Zn(NO 3 ) 2 ·6H 2 O, 4.569g of utropine were dissolved in a beaker of 91.385g of 20wt% ethanol aqueous solution, the beaker was placed in an ultrasonicator, and sonicated at 50°C, 35°C and normal temperature for 2min, 5min, and 10min respectively; after taking out Cover with plastic wrap and keep at a constant temperature of 80°C for 12h; take out the beaker and let it stand at room temperature, then wash with ethanol and water until neutral; dry at 60°C overnight, and then bake in a tube furnace at 150°C for 2h (in the presence of air). Under the conditions), take out the ready-to-use (ZnO powder). Under strong stirring, 6.933g of 10wt% acetic acid solution was added to 72.800g of water, and then 24.267g of tetraethyl orthosilicate and 3.467g of triethylenediamine were added to fully dissolve, and then in a self-pressurized hydrothermal reactor for 40 The temperature was kept at a constant temperature for 5 hours to obtain the modified zeolite X mole...
Embodiment 2
[0056] Weigh 1.142g of Zn(NO 3 ) 2 ·6H 2 O, 0.708g of Zn(CH 3 COO) 2 , 0.925g of utropine was dissolved in a beaker of 46.250g of 60wt% ethanol aqueous solution, the beaker was placed in a sonicator, and sonicated at 40°C, 25°C and normal temperature for 10min, 20min, and 40min respectively; take out the back cover The upper plastic wrap was kept at a constant temperature of 80 °C for 12 hours; after taking out the beaker and letting it stand at room temperature, it was washed with ethanol and water to neutrality in turn; dried at 60 °C overnight, and then roasted in a tube furnace at 150 °C for 2 hours (in the presence of air). conditions) to take out the ready-to-use (ZnO powder). Under strong stirring, 9.533g of 30% concentration acetic acid solution was added to 57.200g of water, then 19.067g of tetraethyl orthosilicate and 3.178g of triethylenediamine were added to fully dissolve, and then in a self-pressurized hydrothermal reactor for 100 The temperature was kept at...
Embodiment 3
[0060] Weigh 2.123g of Zn(CH 3 COO) 2 , 3.312g of ZnSO 4 ·7H 2 O and 2.717g of utropine were dissolved in a beaker of 271.731g of 30wt% ethanol aqueous solution, the beaker was placed in a sonicator, and sonicated at 45°C, 30°C and normal temperature for 5min, 10min and 20min respectively; Cover with plastic wrap and keep at a constant temperature of 90°C for 12h; take out the beaker and let it stand at room temperature, then wash with ethanol and water to neutrality in turn; dry at 60°C overnight, and then bake in a tube furnace at 200°C for 2h (in the presence of air). Under the conditions), take out the ready-to-use (ZnO powder). Under strong stirring, 8.089g of 15% concentration acetic acid solution was added to 72.800g of water, and then 24.267g of tetraethylorthosilicate and 8.089g of triethylenediamine were added to fully dissolve, and then in a self-pressurized hydrothermal reactor for 60 The temperature was kept at a constant temperature for 8 hours to obtain the ...
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