Brief description of the synthetic zeolites dealumination of a large pores, catalysts and organophilic adsorbents selective containing zeolites dealuminated obtained according to the essentially silicic beta zeolite.

摘要

Process for the dealuminization of zeolites with large pores whose diameter of the opening of the pores is greater than or equal to 0,7 nm and the silica / alumina ratio greater than or equal to 6 by acid etching of the zeolite in its as synthesized form. & br / the dealuminized zeolites obtained are used as catalysts for the transformation of hydrocarbons and organophilic adsorbents.