Functional zeolite molecular sieve material and preparation method thereof
A zeolite molecular sieve and functional technology, which is applied in the field of functional core-shell zeolite molecular sieve materials and its preparation, can solve the problems of uncontrollable material structure, inability to meet the catalytic application of functional zeolite molecular sieves, and uneven components.
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Embodiment 1
[0030] Example 1, 3.6 g FeCl 3 Dissolve in 100 ml of ethylene glycol, then add 1.2 g of trisodium citrate and 6 g of sodium acetate, ultrasonically stir for 1 hour, and then transfer to a high-pressure reactor. Place in an oven at 200°C for 10 hours. After the reaction was completed, it was naturally cooled to room temperature, then magnetically separated, washed three times with ethanol and water, and dried for use. Take 5 ml of (0.1 tetraethyl orthosilicate: 0.2 tetrapropylammonium hydroxide TPAOH: 0.001 aluminum chloride: 100 H 2 O: 0.4CH 3 CH 2 OH), placed in a high-pressure reactor, heated at 90°C for 2 days, cooled to room temperature after the reaction, centrifuged, washed with water and dried for later use. Weigh 1 g Fe respectively 3 o 4 and 2 g of ZSM-5 precursor were physically mixed and placed in a tube furnace at 500 °C, and fired at 500 °C for 2 hours under an inert atmosphere at a rate of 3 °C / min. Then continue to put the calcined composite material into...
Embodiment 2
[0031] Example 2, 2.4 g CoCl 2 Dissolve in 100 ml of ethylene glycol, then add 0.8 g of trisodium citrate and 4 g of sodium acetate, ultrasonically stir for 1 hour, and then transfer to a high-pressure reactor. Place in an oven at 200°C for 8 hours. After the reaction was completed, it was naturally cooled to room temperature, then magnetically separated, washed three times with ethanol and water, and dried for use. Take 5 ml of (0.1 silicic acid: 0.3 tetraethylammonium hydroxide TEAOH: 0.001 sodium metaaluminate: 100 H 2 O: 0.4CH 3 CH 2 OH), placed in a high-pressure reactor, heated at 180°C for 7 days, cooled to room temperature after the reaction, centrifuged, washed with water and dried for later use. Weigh 0.5 g Co 3 o 4 and 1.5 g of the Beta precursor were mixed physically and placed in a tube furnace at 600 °C, and fired at 600 °C for 4 hours under an inert atmosphere at a rate of 5 °C / min. Then put the calcined composite material into 5 ml (0.1 silicic acid: 0.3...
Embodiment 3
[0032] Example 3, 1.5 g FeCl 3 and 3 g CoCl 2 Dissolve in 100 ml of ethylene glycol, then add 2 g of trisodium citrate and 5 g of sodium acetate, stir ultrasonically for 1 hour, and then transfer to a high-pressure reactor. Place in an oven at 200°C for 6 hours. After the reaction was completed, it was naturally cooled to room temperature, then magnetically separated, washed three times with ethanol and water, and dried for use. Take 5ml of (0.1 sodium silicate: 0.15 tetramethylammonium hydroxide TMAOH: 0.001 aluminum nitrate: 100 H 2 O: 0.4CH 3 CH 2 OH), placed in a high-pressure reactor, heated at 170°C for 5 days, cooled to room temperature after the reaction, centrifuged, washed with water and dried for later use. Weigh 2 g CoFe respectively 2 o 4 and 1 g of Y precursor were physically mixed and placed in a tube furnace at 900 °C, and fired at 900 °C for 8 hours under an inert atmosphere at a rate of 4 °C / min. Then put the calcined composite material into 5 ml (0.1...
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