Micropore-mesoporous composite ZSM-5 zeolite and preparation method thereof

The invention provides micropore-mesoporous composite ZSM-5 zeolite and a preparation method thereof. The preparation method comprises the following steps: ammonia exchange is carried out for Na type micropore ZSM-5 zeolite with a boron-containing frame, ammonia type micropore ZSM-5 zeolite is obtai...

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Main Authors WANG WENNIAN, REN SHENYONG, LI XIAOHUI, GAO XIONGHOU, GUO QIAOXIA, WANG BAOJIE, LIU PUSHENG, SHEN BAOJIAN, LI JIANGCHENG, MI SHUO, ZHENG QINGQING
Format Patent
LanguageEnglish
Published 17.02.2016
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:The invention provides micropore-mesoporous composite ZSM-5 zeolite and a preparation method thereof. The preparation method comprises the following steps: ammonia exchange is carried out for Na type micropore ZSM-5 zeolite with a boron-containing frame, ammonia type micropore ZSM-5 zeolite is obtained; high temperature hydro-thermal treatment is carried out for the ammonia type micropore ZSM-5 zeolite, and the micropore-mesoporous composite ZSM-5 zeolite is obtained. The preparation method of the micropore-mesoporous composite ZSM-5 zeolite has the advantages of simple operation and low raw material cost. The micropore-mesoporous composite ZSM-5 zeolite has different silica-alumina ratios, and is multilevel pore structured zeolite with micropore and mesoporous.
Bibliography:Application Number: CN20141391785