Method for preparing zsm-5 zeolite
A ZSM-5 and manufacturing method technology, applied in the field of ZSM-5 series zeolite manufacturing, can solve problems such as inability to execute and reduce overall productivity, and achieve the effects of preventing clogging and improving productivity
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Embodiment 1
[0084] (Step 1) After adding 23kg of distilled water to 29kg of water glass (SiO 2 = 20wt%, Na 2 O=6wt%) and stirred for 30 minutes, added 3.1kg of aluminum salt (Al 2 o 3 =8wt%), 0.9kg of sulfuric acid, and 23kg of distilled water were stirred for 30 minutes to mix the solution, and kept for 1 hour to make the first solution. At this time, in order to prevent gelation of the above-mentioned first solution, the first solution was heated to 60° C. to make an aqueous solution state.
[0085] (step 2) the second solution (Na 2 SO 4 = 2wt%, Na 2 O=2wt%, SiO 2 =4wt%) was added to 40kg of the first solution prepared in the above step 1 and stirred for 1 hour, then it was fermented at room temperature for one day to produce a reaction mother liquor. Table 1 shows the viscosity analysis results of the reaction mother liquor prepared as described above.
[0086] The viscosity of the reaction mother liquor was measured at 25° C. using a viscometer (BROOKFIELD DV-II+Pro).
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Embodiment 2
[0092] A zeolite was produced in the same manner as in Example 1 except that 50 kg of the second solution was added to 50 kg of the first solution in Step 2 of Example 1.
[0093]The viscosity analysis results of the reaction mother liquor are shown in Table 1. The crystal structure and shape of the zeolite obtained after continuous synthesis were analyzed by XRD and SEM, and the results are shown in Table 1, figure 1 and figure 2 middle.
[0094] In addition, the mesh with the mesh size of 45 μm attached to the reactor was observed by an optical microscope, and the results are shown in Figure 5 .
Embodiment 3
[0096] Zeolite was produced in the same manner as in Example 1 except that 40 kg of the second solution was added to 60 kg of the first solution in Step 2 of Example 1.
[0097] The viscosity analysis results of the first continuous synthesis mother liquor are shown in Table 1. The crystal structure and shape of the zeolite obtained after continuous synthesis were analyzed by XRD and SEM, and the results are shown in Table 1, figure 1 and figure 2 .
[0098] In addition, the mesh with the mesh size of 45 μm attached to the reactor was observed by an optical microscope, and the results are shown in Figure 5 .
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