BETA TYPE ZEOLITHE AND METHOD OF PREPARING THEM INVENTION OF PHILIPPE CAULLET, JEAN-LOUIS GUTH, ANNE-CATHERINE FAUST, FRANCIS RAATZ, JEAN-FRANCOIS JOLY AND JEAN-MARIE DEVES.

摘要

The object of the invention is a beta-type synthetic crystalline zeolite characterized by: a) the following generalized formula BR/ M2 / nO, Al2O3, xSiO2 BR/ where M represents a proton and / or a metal cation BR/ n is the valence of M BR/ x is a number between 5 and 800, BR/ b) an X-ray diffraction pattern shown in Table I of the description, and BR/ c) a fluorine content of between about 0.005 and 2.0% by weight, said zeolite having been further synthesized in a fluoride medium. / P