HZSM-5 molecular sieve as well as preparation method and application thereof
A technology of molecular sieve and crystallization reaction, which is applied in the direction of crystalline aluminosilicate zeolite, borocarbane silicone crystalline aluminosilicate zeolite, etc., can solve the problems of high cost and complicated synthesis route, and achieve reduction of synthesis cost and simplification of synthesis The effect of technology and broad application prospects
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Embodiment 1
[0047] Add 17.55g of silica sol and 0.3509g of urea into 73.27g of deionized water, and then stir for 0.5h at a stirring rate of 200r / min to obtain A solution;
[0048] Add 0.3575g of seed crystals and 0.9751g of aluminum nitrate into 8.071g of ethanol, and then stir for 0.5h at a stirring rate of 200r / min to obtain B solution;
[0049] Under the condition of a stirring rate of 300r / min, slowly add the B solution to the A solution, after the dropwise addition, continue to stir for 1h to obtain a uniform gel;
[0050] The gel was transferred to a stainless steel crystallization kettle with polytetrafluoroethylene lining, crystallized at 160°C for 24h, then cooled to room temperature, filtered and washed to neutrality, and then dried at 80°C for 12h to obtain HZSM- 5 molecular sieves.
[0051] The molar ratio of each material in the present embodiment is shown in Table 1, and the obtained HZSM-5 molecular sieve is as follows figure 1 shown.
Embodiment 2-9
[0053] According to the method of embodiment 1, the difference is that the material ratio of each raw material is as shown in table 1.
Embodiment 10
[0055] According to the method of Example 1, the difference is that the crystallization temperature is 150° C., and the crystallization time is 24 h.
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