【摘要】 在Ｈ２Ｏ／Ｓｉ≤８．０的极浓体系中，研究了辅助烃（正己烷、正庚烷、异辛烷和正十八烷）对合成中孔ＭＣＭ－４１分子筛的影响。结果表明，在Ｈ２Ｏ用量很小的体系中，辅助烃也可促进合成孔径大于４ｎｍ的ＭＣＭ－４１分子筛。ＸＲＤ、ＳＥＭ及Ｎ２吸附等表征结果表明，合成样品具有典型的ＭＣＭ－４１分子筛特性。更多还原

【Abstract】 In the extreme dense system of H 2O/Si≤8 0,the influences of auxiliary alkanes——n hexane,n heptane,i octane and n octadecane to the synthesise of mesoporous molecular sieve MCM 41 have been studied.The experiments demonstrated that auxiliary alkanes possessed promoting function for preparing molecular sieve MCM 41 with more than 4nm pore diameter in system with very low H 2O synthesized samples have been charaterized by XRD,SEM and N 2 isothermal adsorption.These demonstrated that the products possessed typical properties of MCM 41 molecular sieve.更多还原