摘要
将反应温度提高到１９０℃，成功地用水热晶化法合成了Ｌ沸石．考察了反应混合物的组成、晶化时间对Ｌ沸石晶化的影响．适宜的硅铝比（ＳｉＯ２／Ａｌ２Ｏ３）为２０～２４，阳离子比（Ｋ２Ｏ／（Ｋ２Ｏ＋Ｎａ２Ｏ））为０．６７～０．７８，晶化时间为４～８ｈ都可得到Ｌ沸石纯相．
With the temperature up to 190 ℃,zeolite L is successfully synthesized with hydrothermal crystallization.It is studied that the effect of the composition of reactants and the crystallization time on the formation of zeolite L. Pure crystalline power of zeolite L can be obtained in such conditions: the suitable cation ratio(K 2O/(K 2O+Na 2O)) is 0.67￣1.00;the preferable molar ratio of silica to alumina is 20￣24;the crystallization time is 4￣8h.The laboratory synthesis was enlarged to about 5 liters of autoclave volume.
出处
《沈阳化工学院学报》
1997年第1期55-60,共6页
Journal of Shenyang Institute of Chemical Technolgy
关键词
L沸石
水热合成
高温合成
沸石
人造沸石
zeolite L
\ hydrothermal crystallization
\ high temperature synthesis
