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在含氟无胺体系中合成了高硅丝光沸石 ,研究了合成条件对丝光沸石产物的影响 .结果表明 ,投料n(SiO2 ) /n(Al2 O3 ) =2 0～ 2 0 0时 ,控制晶化条件可得到高硅丝光沸石纯相 .由含氟无胺体系中丝光沸石的热力学稳定相区可见 ,氟离子的引入对方沸石的生成的相区无影响 ,ZSM 5和镁碱沸石生成的相区消失 ,丝光沸石生成的相区扩大 ,石英生成的相区缩小 ,且基本上变为两相共存区 .合成产物丝光沸石的硅铝比随着氟硅比的升高同步增大 ,证明氟离子在无胺合成高硅丝光沸石时具有结构导向作用 .
In the fluorine-free amine-free system, the high-silica mordenite was synthesized and the effects of the synthesis conditions on the product of mordenite were studied. The results show that when the feedstock n (SiO2) / n (Al2 O3) = 20 ~ From the thermodynamic stable phase of mordenite in the fluorine-free amine-free system, it can be seen that the introduction of fluoride ion has no effect on the phase of the formed zeolite, and the phase formed by ZSM 5 and ferrierite Disappear, the phase area of mordenite is enlarged, the phase of quartz is reduced, and basically become the two-phase coexistence area.The ratio of Si / Al of the synthesized mordenite increases with the increase of F / Si ratio, Ions have a structure-oriented role in the synthesis of high-silicon mordenites without amines.