METHOD FOR PREPARING CRYSTALLINE ZEOLITE, ZEOLITES PREPARED THEREBY, CATALYSTS CONTAINING THEM AND USE OF SUCH CATALYSTS

摘要

METHOD FOR PREPARING CRYSTALLINE ZEOLITE ZEOLITES PREPARED THEREBY, CATALYSTS CONTAINING THEM AND USE OF SUCH CATALYSTS A method of preparing crystalline zeolite materials having a constraint index between 1 and 12 and a SiO2/A12O3 mole ratio greater than 12 which comprises crystallizing the substantially pure zeolite material from a mixture of a source of silica, and optionally alumina, in the presence of a trialkylmethylammonium cation, and zeolites so prepared.