摘要
在一定的SiO2与Al2O3物质的量比和pH条件下，采用水热晶化法合成了L／ZSN-5新型复合分子筛。并通过X射线衍射（XRD）、扫描电镜（SEM）和红外光谱（IR）对样品进行了表征。讨论了酸量对合成的影响。结果表明，优化的加酸量为（0．8020～0．9399）g，在一定的酸性范围，酸性越强越有利于ZSM-5的生成，合成出的复合分子筛中ZSM-5所占的比率越高。
A novel composite zeolite of L/ZSM-5 was synthesized by hydrothermal crystallization method under the reaction condition of favorable SiO2/Al2O3 molar ratio and pH value. The composite zeolite was characterized by XRD, SEM and IR. The influence of acid amount on synthesis of composite zeolite was discussed. The optimum amount of the acid added to the synthesis system was （0. 802 0-0.939 9） g. The stronger acidity in a certain range was in favor of synthesis of ZSM-5. The stronger the acid, the higher the percent of ZSM-5 in the composite zeolite.
出处
《工业催化》
CAS
2008年第10期92-94,共3页
Industrial Catalysis
关键词
催化化学
复合分子筛
合成
表征
catalytic chemistry
composite zeolite
synthesis
characterization
