ZSM-11 was investigated in the synthesis of the impact of various factors on the product, and with the conventional hydrothermal wears comparison . By examining the two kinds of template for the synthesis of zeolite, and found that tetrabutyl ammonium bromide or tetrabutyl ammonium hydroxide in the synthesis of ZSM-11 zeolite structure plays an important role in guiding, and phenyl trimethyl ammonium chloride presence is very necessary, plays to promote the synthesis of ZSM-11 zeolite purer, more well-crystallized role. In situ solid-phase inversion method to overcome the hot water system and some of the shortcomings of non-water system has to improve product quality, reduce cost, environmentally friendly advantages, synthetic zeolite is an ideal method. Therefore, high purity synthetic zeolite ZSM-11 has long been the problem of many researchers. The past is mainly used tetrabutylammonium bromide or tetrabutylammonium hydroxide as templating agent in the hydrothermal synthesis of ZSM-11 system, zeolite, on the basis of this the first time in the previous four-phenyl-butyl ammonium bromide and the top three ammonium chloride as a template to synthesize a common high-purity ZSM-11 zeolite. And focus from the alkalinity, template, water content, crystallization time and crystallization temperature, and several other areas examined in detail the various factors on the crystallization process and the impact of synthetic samples.
The development of hetero-atom zeolite molecular sieve synthesis and catalysis has great role in promoting, is one of the hot research in recent years, due to the introduction of a skeleton with a high catalytic activity of the hetero-atom, the zeolite has a special The catalytic properties; or modified by the modulation of these heteroatom zeolite catalyst can have a variety of functions, is a good composite catalytic materials. this article in the synthesis of conventional micron-ZSM-11 zeolite, based on the ratio of raw materials and by adjusting the crystallization conditions for the further synthesis of a 10nm particle size can be controlled in the suspended state within the zeolite ZSM-11 and B-ZSM- 11 zeolite, and examine the ratio of reactants and crystallization time on the synthesis of zeolite particle size, crystallinity and surface area of impact. The results show that adding alkali and ethanol can effectively reduce the crystal particle size, to extend the crystallization time can significantly increase the grain size.
Read more: ZSM-11 for sale
The development of hetero-atom zeolite molecular sieve synthesis and catalysis has great role in promoting, is one of the hot research in recent years, due to the introduction of a skeleton with a high catalytic activity of the hetero-atom, the zeolite has a special The catalytic properties; or modified by the modulation of these heteroatom zeolite catalyst can have a variety of functions, is a good composite catalytic materials. this article in the synthesis of conventional micron-ZSM-11 zeolite, based on the ratio of raw materials and by adjusting the crystallization conditions for the further synthesis of a 10nm particle size can be controlled in the suspended state within the zeolite ZSM-11 and B-ZSM- 11 zeolite, and examine the ratio of reactants and crystallization time on the synthesis of zeolite particle size, crystallinity and surface area of impact. The results show that adding alkali and ethanol can effectively reduce the crystal particle size, to extend the crystallization time can significantly increase the grain size.
Read more: ZSM-11 for sale
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