High silicon mordenite and preparing method thereof
A mordenite and high-silicon technology, which is applied in the field of high-silicon mordenite and its preparation, can solve the problems of high benzene adsorption value, no mention of the preparation method of high-silicon mordenite with low benzene adsorption value, etc., and achieves the effect of low production cost.
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Embodiment 1
[0018] 213.7 g silica sol [40, SiO 2 % (weight), all the other are water, the same below] is A solution, 81.0 grams of solid aluminum sulfate [chemically pure, Al 2 (SO 4 ) 3 18H 2 O, the same below] was dissolved in 140 milliliters of water to obtain solution B, and 54.5 grams of solid sodium hydroxide (chemically pure) was dissolved in 113 milliliters of water to obtain solution C. Add 200 ml of water into a container with a stirring device, turn on the stirring device, and add the three solutions of A, B, and C into the container at the same time in proportion to the flow, within 45 to 90 minutes, the three solutions are added at the same time, and continue to stir for 15 minutes Above, add 8.3 grams of ammonia water [chemically pure, NH 3 25.5% (weight)], and then stirred for 1 to 3 minutes. Then transfer the slurry into a 2-liter crystallization tank with a stirring device, seal the crystallization tank, turn on the stirring device, start heating, raise the temperatu...
Embodiment 2
[0023] 230.4 grams of silica sol was solution A, 51.1 grams of solid aluminum sulfate was dissolved in 191 milliliters of water to obtain solution B, and 33.2 grams of solid sodium hydroxide was dissolved in 120 milliliters of water to obtain solution C. Add 380 ml of water into a container with a stirring device, turn on the stirring device, and add the three solutions of A, B, and C into the container at the same time in proportion, and continue stirring for more than 15 minutes after adding the three solutions at the same time, then add 5.1 grams Ammonia [chemically pure, NH 3 25.5% (weight)], and then stirred for 1 to 3 minutes. Then transfer the slurry into a 2-liter crystallization tank with a stirring device, seal the crystallization tank, raise the temperature in the crystallization tank to 180° C. within 2 hours, and keep the temperature constant for 28 hours. Then cool, filter and recover the solid product, wash with water, and dry overnight at 110°C to obtain the s...
Embodiment 3
[0028] 239.4 grams of industrial water glass (26.02% by weight SiO 2 , 7.45 wt% Na 2 (2, all the other being water) is A solution, and 41.6 grams of solid aluminum sulfate and 17.8 grams of sulfuric acid (chemically pure) are dissolved in 228 milliliters of water to obtain B solution. Add 300 ml of water into a container with a stirring device, turn on the stirring device, and add the two solutions of A and B into the container at the same time in proportion to the parallel flow. After the two solutions are added at the same time, continue to stir for more than 15 minutes, and then transfer the slurry into 2 Lift the crystallization kettle with a stirring device, seal the crystallization kettle, then bubble 3.2 grams of liquid ammonia (purity above 99%) into the crystallization kettle, raise the temperature in the crystallization kettle to 170°C, and keep the constant temperature at 60°C Hour. Then cool, filter and recover the solid product, wash with water, and dry overnigh...
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