Synthetic method of nano aluminum-rich beta-zeolite
A method for synthesizing nano aluminum-rich beta-zeolite comprises the steps as follows: (1) an alumino silica gel which is formed by mixing an aluminum source and acid is evenly mixed with aluminum source particles, dried and crushed into alumino silica gel particles, wherein, the mol ratio of the...
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Sprache: | chi ; eng |
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Zusammenfassung: | A method for synthesizing nano aluminum-rich beta-zeolite comprises the steps as follows: (1) an alumino silica gel which is formed by mixing an aluminum source and acid is evenly mixed with aluminum source particles, dried and crushed into alumino silica gel particles, wherein, the mol ratio of the aluminum source to the silicon source is 0.05-0.2; and (2) a template agent is added to the alumino silica gel particles obtained in the step (1) and evenly mixed to produce a reaction mixture which is crystallized at the temperature of 80-190 DEG C for 1-6 days, therefore a product is obtained through recovery. The mol ratios of the feeding ingredients of the reaction mixture are as follows: the mol ratio of the template agent to the silicon source equals 0.1-1.0, and that of water to the silicon source equals 2-12. The template agent is a mixture of a tetraethylammonium compound and a fluoride, or tetraethylammonium fluoride dihydrate. The method provided by the invention is characterized by high yield of a sing |
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