SSZ-13/SSZ-39 composite structure molecular sieve as well as synthesis method thereof
A technology of SSZ-39 and composite structure, applied in molecular sieve catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve unrelated problems and achieve good stability and good technical effects
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Embodiment 1
[0040] Synthesis of SSZ-13 / SSZ-39 Composite Molecular Sieves
[0041] 10.58g of silica sol [SiO 2 , 40wt.%, 0.07mol] was dissolved in 60.74mL of water, mixed to make solution S, and then the solution was divided into two parts by mass, 75% and 25%, respectively, and recorded as solution S c and solution S a , 3.27g sodium aluminate [NaAlO 2 , purity ≥98wt.%, 0.04mol], 15.78g amantadine [TMAdaOH, purity ≥98wt.%, 0.10mol] into S c solution, stirred for 0.5h to obtain solution S c '; 1.73g of sodium aluminate [NaAlO 2 , purity≥98wt.%,, 0.02mol] and 0.62g of USY molecular sieve, 0.23g of Beta molecular sieve and 8.19g of N,N-dimethyl-2-ethylpiperidinium bromide [DMEPBr, 0.06mol] and 3.13 g of 1-methyl-4-aminopiperidine [MAP, 0.04mol] was put into S a In the solution, after fully stirring for 0.2h, add 3.64g of sodium hydroxide [NaOH, 0.09mol] into the above solution to adjust the pH value of the solution between 8 and 9, and continue stirring for 0.3h to obtain solution S a...
Embodiment 2
[0043] Synthesis of SSZ-13 / SSZ-39 Composite Molecular Sieves
[0044] 4414.85g of silica sol [SiO 2 , 60wt.%, 44.15mol] was dissolved in 34651.86mL of water, mixed to make solution S, and then the solution was divided into two parts by mass, 35% and 65%, respectively, and recorded as solution S c and solution Sa , 995.99g of aluminum sulfate [Al 2 (SO 4 ) 3 18H 2 O, purity ≥98wt.%, 1.49mol], 530.64g choline [Choline, 50wt.%, 2.19mol] and 119.39g amantadine [TMAdaOH, purity ≥98wt.%, 0.37mol] were put into S c solution, stirred for 3.5h to obtain solution S c '; 1004.01g of aluminum sulfate [Al 2 (SO 4 ) 3 18H 2 O, purity ≥98wt.%, 1.51mol] and 99.68g of USY molecular sieves, 50.55g of MOR molecular sieves and 535.91g of 1-benzyl-4-hydroxypiperidine [BeOP, 3.26mol], 463.13g of N,N -Dimethyl-2-ethylpiperidinium chloride [DMEPCl, 2.21mol] into S a In the solution, 909.89g of potassium hydroxide [KOH, 16.23mol] was added to the above solution to adjust the pH value of the...
Embodiment 3
[0046] Synthesis of SSZ-13 / SSZ-39 Composite Molecular Sieves
[0047] 666.78g of white carbon black [SiO 2 , 99wt.%, 11.10mol] was dissolved in 5520.88mL of water, mixed to make solution S, and then the solution was divided into two parts by mass, 50% and 50%, respectively, and recorded as solution S c and solution S a , 82.33g of aluminum nitrate [Al(NO 3 ) 3 9H 2 O, purity ≥98wt.%, 0.22mol], 127.98g amantadine [TMAdaOH, purity ≥98wt.%, 0.85mol] into S c solution, stirred for 3.3h to obtain solution S c '; 56.21g of aluminum nitrate [Al(NO 3 ) 3 9H 2 O, purity ≥98wt.%, 0.15mol], 33.22g of USY molecular sieves, and 135.30g of 2,2,4,6,6-pentamethyl-2-azabicyclo[3.2.1]octane [PMNO , 0.66mol] and 90.65g of N,N-dimethyl-3,5-dimethylpiperidinium bromide [DMDMPBr, 0.41mol] into S a In the solution, after fully stirring for 2.9 hours, add 2656.56 g of lithium hydroxide [LiOH, 110.69 mol] to the above solution to adjust the pH value of the solution between 11 and 12, and con...
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