Method for synthesis of novel mesoporous molecular sieve with acidic functional ionic liquid as template agent
A mesoporous molecular sieve and ionic liquid technology, applied in the direction of crystalline aluminosilicate zeolite, etc., can solve the problems of poor stability, small pore size and low acidity of microporous molecular sieves
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Embodiment 1
[0010] Preparation of MMS-11 molecular sieve: NaOH, NaAlO 2 , SiO 2 The aqueous solution (mass fraction 30%) and the 25% TEAOH aqueous solution with a molar ratio of n(Al 2 O 3 ) / n(SiO 2 ) / n(Na 2 O) / n(TEAOH) / n(H 2 O)=1.0 / 60 / 2.5 / 22 / 800, mix, stir, then transfer the mixture to the crystallization kettle, and dissolve it at 140°C under self-pressure for 4 hours to obtain Beta zeolite directing agent; Beta zeolite directing agent And [HSO 3 -(CH 2 ) 3 -mim][HSO 4 ] Ionic liquid is added to distilled water (molar ratio is n(ionic liquid) / n(SiO 2 ) / / n(H 2 O)=1.2 / 1 / 85), mix and stir for 30min, add 5ml of absolute ethanol, stir for 12h at 40℃, then transfer it into a stainless steel reactor lined with PTFE, place it in an oven for crystallization at 110℃ for 24 hours, After cooling, suction filtration, washing, drying, and calcination at 550°C for 8 hours, a sample of MMS-11 novel mesoporous molecular sieve was obtained.
Embodiment 2
[0012] Preparation of MMP-12 catalyst: The preparation conditions and steps are the same as in Example 1, except that the ionic liquid is changed to [HSO 3 -(CH 2 ) 3 -NEt 3 ][H 2 PO 4 ], get a sample of MMP-12 new mesoporous molecular sieve.
Embodiment 3
[0014] Preparation of MNS-16 catalyst: The preparation conditions and steps are the same as in Example 1, except that the ionic liquid is changed to [HSO 3 -(CH 2 ) 3 -NEt 3 ][HSO 4 ], get a sample of MNS-16 new mesoporous molecular sieve.
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