METHOD FOR PRODUCING METAL EXCHANGED METALLO-ALUMINOPHOSPHATES BY SOLID-STATE ION EXCHANGE AT LOW TEMPERATURES

摘要

Method for the preparation of a metal exchanged crystalline microporous metalloaluminophosphate or mixtures containing metal exchanged microporous metalloaluminophosphates materials comprising the steps of providing a dry mixture containing a) one or more metalloaluminophosphates starting materials that exhibit ion exchange capacity, and b) one or more metal compounds; heating the mixture in a gaseous atmosphere containing ammonia to a temperature and for a time sufficient to initiate and perform a solid state ion exchange of ions of the metal compound and ions of the crystalline microporous material; and obtaining the metal-exchanged microporous metalloaluminophosphate material or mixtures containing the metal-exchanged microporous metalloaluminophosphate material.