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不同硅铝比ZSM-22分子筛的合成
引用本文:吴卓,谭涓,刘靖,尹大元.不同硅铝比ZSM-22分子筛的合成[J].工业催化,2010,18(1):26-30.
作者姓名:吴卓  谭涓  刘靖  尹大元
作者单位:大连理工大学化工学院 精细化工重点实验室,辽宁 大连116012
摘    要:采用静态水热合成法,以氢氧化钾为碱源,硅溶胶为硅源,1,6-己二胺为模板剂,考察了晶化温度(423~443)K]、晶化时间(12~72)h]和原料配比对合成ZSM-22分子筛的影响,优化了合成条件。结果表明,最佳合成条件为:晶化温度433 K、晶化时间48 h、n(Al2O3)∶n(SiO2)∶n(K2O)∶n(DAH)∶n(H2O)=0.11∶10∶1.3∶3.0∶400。在此基础上,通过碱度的调变,合成了较纯n(Al2O3)∶n(SiO2)=40~130的ZSM-22分子筛。

关 键 词:催化化学  ZSM-22分子筛  碱度  硅铝比  

Synthesis of ZSM-22 zeolite with different SiO2/Al2O3 ratio
WU Zhuo,TAN Juan,LIU Jing,YIN Dayuan.Synthesis of ZSM-22 zeolite with different SiO2/Al2O3 ratio[J].Industrial Catalysis,2010,18(1):26-30.
Authors:WU Zhuo  TAN Juan  LIU Jing  YIN Dayuan
Affiliation:State Key Laboratory of Fine Chemicals, Dalian University of Technology,Dalian 116012, Liaoning, China
Abstract:ZSM-22 zeolite was prepared by static hydrothermal method using potassium hydroxide as the alkali source, silica as the silicon source and 1,6-diaminohexane as the template. The effects of crystallization temperature (423 -443 ) K, crystallization time (12 -72) h and material proportion were investigated. The optimum synthesis condition was obtained as follows: crystallization temperature 433 K, crystallization time 48 h, n ( Al2O3 ) : n ( SiO2 ) : n ( K2O ) : n ( DAH ) : n ( H2O) = 0.11 : 10: 1.3 : 3.0: 400. Relative pure ZSM-22 zeolite with different SiO2/Al2O3 molar ratio (40 - 130) was obtained under the condition via adjusting the alkalinity.
Keywords:catalytic chemistry  ZSM-22 zeolite  alkalinity  SiO2/Al2O3 ratio
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