Zeolite L preparation.

摘要

Zeolite L with cylindrical morphology and having excellent properties as a catalyst base may be prepared with high crystallinity and reduced contamination even in large scale syntheses were fluctuation in gel compositions may occur by employing a gel composition having the following molar ratios of components: 2.64-2.67 M2/nO:Al2O3:8.8-9.7 SiO2:145-160 H2O where M is a cation of valence n, especially potassium. The ratio M2/nO:SiO2 is preferably at least 0.275.