采用线形有机铵结构导向剂合成硅硼分子筛  

SYNTHESIS OF BOROSILICATE USING LINEAR-TYPE ORGANIC AMMONIUM AS STRUCTURE-DIRECTING AGENT

作　　者：岳超超[1] 刘月明[1] 谢伟[1] 吴海虹[1] 李晓红[1] 吴鹏[1] 

机构地区：[1]华东师范大学绿色化学与化工过程重点实验室,上海200062

出　　处：《石油学报（石油加工）》2008年第B10期170-174,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金委（20673038）、上海市科委（06SR07101,06dj14006）、973计划（2006CB202508）、高等学校博士学科点专项科研基金（20070269023）和上海市重点学科建设项目（B409）资助

摘　　要：采用线形单季铵离子[CH3（CH2）mN＋（CH3）3，m=6，7，8]作为结构导向剂，水热合成了硅铝、硅硼分子筛。结果表明，在合成过程中，此类长链有机铵不易控制单一分子筛的结晶，容易受其他因素的影响而生成其它类型的分子筛。通过系统考察晶化条件，合成了具有MWW晶体结构的高纯度硅硼分子筛，并实现了在低硼酸添加条件下MWW结构钛硅分子筛的合成。Aluminosilicate and borosilicate have been hydrothermal synthesized using linear-type quaternary ammonium （[CH3（CH2）mN＋（CH3）3,m=6,7,8]） as structure-directing agent （SDA）. The results showed that by using these long chain organic ammoniums it was difficult to synthesize the zeolite with a pure crystalline phase, but the crystallization of other zeolites could easily be directed. After optimizing the conditions systemically, a high pure borosilicate with MWW topology was successfully prepared, and MWW type titanosilicate was further obtained with low amount of boric acid added.

关 键 词：线型单季铵离子 合成 MWW 

分 类 号：O643[理学—物理化学]