Preparation method of melem modified micro-porous molecular sieve shape-selective catalyst
A technology of microporous molecular sieve and melem, which is applied in the field of preparation of shape-selective catalysts, can solve the problems of high cost, low catalytic efficiency, cumbersome preparation and operation of shape-selective catalysts, etc.
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Examples
Embodiment 1
[0027] Add 2g of microporous molecular sieve MCM-22 into 40mL of deionized water, and disperse by ultrasonic at room temperature for 30min; add melem powder gradually to the above mixture, add 0.02g each time, add 5 times continuously, and ultrasonicate for 30min after each addition ; Then filter the resulting mixture, dry the filter cake at 80°C for 12h, then raise the temperature to 120°C, and keep it at this temperature for 2h, and then lower it to room temperature to obtain the desired melem modified microporous molecular sieve Shape-selective catalysts are denoted as Cat1.
Embodiment 2
[0029] Add 2g of microporous molecular sieve MCM-22 into 100mL of deionized water, and disperse by ultrasonic at room temperature for 30min; add melem powder gradually to the above mixture, add 0.02g each time, add 10 times continuously, and ultrasonicate for 30min after each addition ; Then filter the resulting mixture, dry the filter cake at 80°C for 12h, then raise the temperature to 120°C, and keep it at this temperature for 2h, and then lower it to room temperature to obtain the desired melem modified microporous molecular sieve Shape-selective catalysts are denoted as Cat2.
Embodiment 3
[0031] Add 2g of microporous molecular sieve MCM-22 into 60mL of deionized water, and disperse by ultrasonic at room temperature for 30min; add melem powder gradually to the above mixture, add 0.02g each time, add 7 times continuously, and ultrasonicate for 30min after each addition ; Then filter the resulting mixture, dry the filter cake at 80°C for 12h, then raise the temperature to 120°C, and keep it at this temperature for 2h, and then lower it to room temperature to obtain the desired melem modified microporous molecular sieve Shape-selective catalysts are denoted as Cat3.
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Description
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Application Information
- IPC
- B01J31/02; B01J31/26; C07C6/12; C07C15/08
- CPC
- B01J31/0244; B01J31/26; B01J2231/4205; C07C6/12; C07C2531/02; C07C2531/26; C07C15/08; Y02P20/52
- Inventors
- 薛冰; 刘佳宝