PROCESSO PARA A MODIFICACAO DE UM CRIVO MOLECULAR

摘要

The invention relates to a process for modifying a molecular sieve, whereby the molecular sieve is brought into contact with a modifying agent containing at least one weak acid, a salt of a weak acid or a derivative of a weak acid of at least one element of Groups III, IV or V of the Periodic Table of Elements; whereafter the resulting mixture is subjected to a thermal treatment.