Method for synthesizing ZSM-5 zeolite with multilevel pore canals
A technology of ZSM-5 and synthesis method, which is applied in the direction of chemical instruments and methods, crystalline aluminosilicate zeolite, borocarbane silicone crystalline aluminosilicate zeolite, etc., can solve the problems of unsuitable catalytic materials and achieve rich content The effects of specific surface area, reduced production cost, and simple operation process
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Embodiment 1
[0033] Stir 30ml of methyl orthosilicate, 6g of polyethylene glycol and 30ml of 0.01mol / L acetic acid solution evenly, after sealing, stir at 0°C for 50min. Pour the resulting sol into a polytetrafluoroethylene test tube or glass tube, Aged in a water bath at 30°C for one day to obtain a wet silica gel column. Then soak the silica gel column with 0.01mol / L ammonia water to prepare mesopores. Then use 0.1mol / L nitric acid solution, distilled water, and 30% ethanol / water ethanol solution respectively Soak the column body with Tween 80 for 6h, finally dry and roast to obtain the silica gel monolithic column B1.
Embodiment 2
[0035] According to the mass ratio of 1.25 sucrose: 0.14H 2 SO 4 : 5 water to make a solution, put the silica gel monolithic column B1 into it and soak for 30 minutes, then dry at 100°C for 6 hours, 160°C for 6 hours, repeat the process of soaking, drying, and polymerization once, and then carbonize at 900°C for 4 hours to obtain carbon Silicon composite sample E1.
Embodiment 3
[0037] 0.038 gram of sodium aluminate, 0.08 gram of sodium hydroxide, 1 gram of tetraethylammonium hydroxide solution and 2 grams of water were mixed and stirred evenly, and then this solution was poured into a reaction kettle equipped with 1.3 gram of carbon-silicon complex E1, Stir to make it fully wet, seal the reactor and crystallize at 150°C for 48 hours. After crystallization, cool, filter and wash, then dry in an oven at 100-110°C for 3-4 hours, and then burn the resultant in a muffle furnace at 600°C for 5 hours to obtain the product multi-level channel ZSM-5 , denoted as A1.
[0038] The XRD spectrum of A1 is shown in figure 1 ,from figure 1 It can be seen that all the figures have diffraction peaks at 2θ angles of 7.9°, 8.9°, 23.1°, 23.9°, and 24.4°. These five diffraction peaks are characteristic peaks of ZSM-5, which shows that in this embodiment The crystal form of the synthesized product is ZSM-5.
[0039] See the SEM picture of A1 image 3 , it can be seen...
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