Catalyst for toluene methanol side chain alkylation reaction and use thereof
An alkylation reaction and catalyst technology, applied in the field of catalysts, can solve the problems of low toluene conversion rate, low methanol utilization rate, poor catalyst stability, etc., and achieve the effect of simple preparation method, avoiding invalid decomposition, and avoiding removal
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Embodiment 1
[0026] Weigh 100g silicon aluminum ratio SiO 2 / Al 2 o 3 2.1 NaX molecular sieve, reflux with methyl silicone oil in 500mL cyclohexane for 4 hours, filter and dry in an oven at 110°C for 4 hours, and then bake in a muffle furnace at 600°C for 4 hours. The obtained sample was ion-exchanged in 500 mL of potassium nitrate aqueous solution at 60°C for 2 hours, exchanged twice, and then ion-exchanged in 500 mL of cesium nitrate aqueous solution at 60°C for 2 hours, exchanged twice, after exchange Filter and dry in an oven at 110°C for 4 hours. Prepare 100 mL of an aqueous solution containing an appropriate amount of potassium metaaluminate, boric acid, ruthenium trichloride, and cerium nitrate, impregnate the ion-exchanged molecular sieve in the above solution with stirring at 60°C for 4 hours, and then evaporate to dryness. Dry in an oven at 110°C for 4 hours, and then bake in a muffle furnace at 600°C for 4 hours to obtain catalyst A, which is ground into 40-60 mesh particles ...
Embodiment 2
[0028] Weigh 100g silicon aluminum ratio SiO 2 / Al 2 o 3 2 NaX molecular sieves, refluxed with methyl silicone oil in 500mL cyclohexane for 4 hours, filtered, dried in an oven at 90°C for 24 hours, and then calcined in a muffle furnace at 400°C for 24 hours. The obtained sample was ion-exchanged in 500 mL of potassium nitrate aqueous solution at 60°C for 2 hours, exchanged twice, and then ion-exchanged in 500 mL of cesium nitrate aqueous solution at 60°C for 2 hours, exchanged twice, after exchange Filter and dry in an oven at 90°C for 24 hours. Prepare 100 mL of an aqueous solution containing an appropriate amount of potassium metaaluminate, boric acid, ruthenium trichloride, and cerium nitrate, impregnate the ion-exchanged molecular sieve in the above solution with stirring at 60°C for 4 hours, and then evaporate to dryness. Dry in an oven at 90°C for 24 hours, and then bake in a muffle furnace at 400°C for 24 hours to obtain catalyst B, which is ground into 40-60 mesh pa...
Embodiment 3
[0030] Weigh 100g silicon aluminum ratio SiO 2 / Al 2 o 3 2.9 NaX molecular sieve, reflux with methyl silicone oil in 500mL cyclohexane for 4 hours, filter and dry in an oven at 150°C for 1 hour, and then bake in a muffle furnace at 650°C for 1 hour. The obtained sample was ion-exchanged in 500 mL of potassium nitrate aqueous solution at 60°C for 2 hours, exchanged twice, and then ion-exchanged in 500 mL of cesium nitrate aqueous solution at 60°C for 2 hours, exchanged twice, after exchange Filter and dry in an oven at 150°C for 1 hour. Prepare 100 mL of an aqueous solution containing an appropriate amount of potassium metaaluminate, boric acid, ruthenium trichloride, and cerium nitrate, impregnate the ion-exchanged molecular sieve in the above solution with stirring at 60°C for 4 hours, and then evaporate to dryness. Dry in an oven at 150°C for 1 hour, and then bake in a muffle furnace at 650°C for 1 hour to obtain catalyst C, which is ground into 40-60 mesh particles for c...
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