Beta zeolite of type and its method of preparation of turns caullet, jean - louis guth, anne - catherine faust, a francis raatz, jean - francois joly and deves marie jean -.

摘要

The invention relates to a crystalline zeolite synthetic beta type, characterized by: & br / a) the general formula following approximate & & br / m2 / n o, al2 o3, xsio2 br / where m represents a proton and / or a metal cation br / & n is the valency of m & br / & x is a number between 5 and 800, & br / b) an x ray diffraction diagram shown in table i of the description, and & br / c) a fluorine content of between approximately 0,005 and 2,0% by weight, said zeolite has also been synthesized in fluoride medium.