Hierarchical porous SAPO-18 molecular sieve, preparation method thereof and application thereof
A technology of SAPO-18 and molecular sieve, applied in the direction of molecular sieve catalyst, molecular sieve and alkali exchange phosphate, molecular sieve characteristic silicoaluminophosphate, etc., can solve the problem of not providing data or pictures
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Embodiment 1
[0071] Mix and stir 10.52g pseudo-boehmite and 23.81g deionized water, add 85wt% 13.28g phosphoric acid and 10.90g deionized water mixed solution under strong stirring, add 2.88g silica sol and 12.91g deionized water after mixing well mixed solution. After stirring at room temperature for 1 hour, add 8.26 g of template agent N,N-diisopropylethylamine (99%), stir thoroughly for 1 hour, add 2.73 g of pore regulator triethylamine, continue stirring for 2 hours, and mix the formed The solution was aged at room temperature for 3 h. The molar ratio of each component in the resulting mixture is: R:0.3SiO 2 :Al 2 o 3 :0.9P 2 o 5 :50H 2 O: 0.45T, (wherein, R represents the templating agent, and T is the channel regulating agent). The above mixed solution was put into a stainless steel crystallization kettle, and placed at 180° C. for hydrothermal crystallization for 4 days. The product was centrifugally washed with deionized water, filtered, and dried at 120° C. for 5 hours as ...
Embodiment 2
[0077] Mix and stir 10.52g pseudo-boehmite and 23.81g deionized water, add 85wt% 13.28g phosphoric acid and 10.90g deionized water mixed solution under strong stirring, add 2.88g silica sol and 12.91g deionized water after mixing well mixed solution. After stirring at room temperature for 1 hour, add 8.26 g of template agent N,N-diisopropylethylamine (99%), stir thoroughly for 1 hour, add 7.00 g of pore regulator diethylamine, continue stirring for 2 hours, and mix the formed The solution was aged at room temperature for 3 h. The molar ratio of each component in the resulting mixture is: R:0.3SiO 2 :Al 2 o 3 :0.9P 2 o 5 :50H 2 O:T, (wherein, R represents a template agent, and T is a pore regulator). The above mixed solution was put into a stainless steel crystallization kettle, and placed at 180° C. for hydrothermal crystallization for 4 days. The product was centrifugally washed with deionized water, filtered, and dried at 120° C. for 5 hours as the original powder of...
Embodiment 3
[0080] Mix and stir 10.52g pseudo-boehmite and 23.81g deionized water, add 85wt% 13.28g phosphoric acid and 10.90g deionized water mixed solution under strong stirring, add 2.88g silica sol and 12.91g deionized water after mixing well mixed solution. After stirring at room temperature for 1 hour, add 8.26 g of template agent N,N-diisopropylethylamine (99%), and after stirring thoroughly for 1 hour, add the pore regulator octadecyldimethyltrimethoxysilylpropylammonium chloride 4.76g, continue stirring for 2 hours, and age the resulting mixed solution at room temperature for 3 hours. The molar ratio of each component in the resulting mixture is: R:0.3SiO 2 :Al 2 o 3 :0.9P 2 o 5 :50H 2 O: 0.15T, (wherein, R represents the templating agent, and T is the channel regulating agent). The above mixed solution was put into a stainless steel crystallization kettle, and placed at 180° C. for hydrothermal crystallization for 4 days. The product was centrifugally washed with deioniz...
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