Synthesis of gallo silicate - zeolite with faujasite.

摘要

A gel is prepared containing a gallosilicate structuring agent st and having an appropriate composition to be crystallized in a zeolite of the faujasite structural class, and then the said gel is subjected to a crystallization in order to form a precursor of the zeolite consisting of said zeolite containing the structuring agent in its cavities and channels, and it produces the zeolite by calcination of the precursor. / p & & p & the structuring agent st consists of at least one compound chosen from among the cycles and macrocycles which the cycle comprises at least 6 carbon atoms, and it contains heteroatoms chosen from oxygen, nitrogen and silicon. / p & & p & the zeolites obtained have an si / ga greater than 1 and which may exceed 3 and have a cubic symmetry. These zeolites are used, either directly or after cation exchange, as adsorbents or as components of catalysts.