Method for making aluminosilicate zeolite ssz-56
A technology of SSZ-56, aluminosilicate zeolite, applied in crystalline aluminosilicate zeolite, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as failure
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Embodiment 1
[0065] Synthesis of 1-butyl-1-(3,3,5-trimethylcyclohexyl)piperidinium hydroxide
[0066] Ⅰ. Synthesis of 1-(3,3,5-trimethylcyclohexyl)piperidine: Add 20g (0.23mol) of piperidine and 49g (0.35mol) of 3,3,5-trimethylcyclohexyl to a three-necked 500ml flask Methylcyclohexanone and 75ml of anhydrous cyclohexane. Add 55g (0.46mol) anhydrous magnesium sulfate (MgSO 4 ) and the mixture was mechanically stirred and heated at reflux (the reaction was monitored by NMR) for 144 hours. The reaction mixture was then transferred to a 300ml autoclave. The autoclave was sealed and a heating mantle and overhead stirrer added. The autoclave was heated to 80°C and allowed to stir overnight at autogenous pressure. The reaction mixture was stirred for 48 hours and then checked by NMR. The reaction mixture was filtered through a fritted glass funnel. The filtrate (containing cyclohexane, enamine product, and excess 3,3,5-trimethylcyclohexanone) was exposed to 10% palladium on charcoal (4 g) u...
Embodiment 2
[0073] Synthesis of Al-SSZ-56
[0074] To a 23 ml Teflon bushing were added 5.2 g of the hydroxide solution of SDA as prepared in Example 1 and 1.5 g of 1N aqueous NaOH. Deionized water was then added until a total solution weight of 7.6 g was reached. To this solution was added 0.26 g of zeolite LZ-52 (Union Carbide) and mixed well. Finally, slowly add 0.8 g of CAB-O- M-5 (Cabot Corporation) and the gel was mixed well. The Teflon liner was then capped and sealed in the autoclave and placed in a convection oven at 160°C. The autoclave was turned over at 43 rpm in the oven over a period of 15 days. The progress of the reaction was monitored by SEM. Once crystallization was complete, the autoclave was then removed and allowed to cool to room temperature. The solid was then recovered by filtration and washed well with deionized water. The solid was then dried at room temperature and then in an oven at 115°C for 2 hours. The powder XRD pattern of the product obtained is s...
Embodiment 3
[0076]Seeded Synthesis of Al-SSZ-56
[0077] Example 2 was repeated except that 50 mg of Al-SSZ-56 from a previous synthesis was seeded into the reaction mixture. The reaction provided pure Al-SSZ-56 within 8 days, compared to 15 days without inoculation.
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