METHOD FOR PRODUCING ZEOLITES AND ZEOLITE-LIKE STRUCTURES DOPED BY METALS AND METHODS OF APPLICATION THEREOF CATALYTIC NEUTRALIZATION OF NITROGEN OXIDES

摘要

1. A method of producing metal-doped zeolites and zeolite-like structures, comprising the following stages: I) providing a dry homogeneous mixture of a zeolite or zeolite-like structure with one or more precursor compounds or compounds comprising a complex compound formed by a transition metal and a ligand corresponding to structural formula I: in which M is a metal selected from the group consisting of V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, Ru, Rh, Pd, Ag and Ce, and L is carbonyl, amine, alkyl, alkoxy, alken, aren, fos fin or another neutral coordinating ligand, m is a number from 0 to 6, n is a number equal to the valency of M, and L is a diketonate, ketoiminate or a related member of this homologous series, for example, a ligand corresponding to formula (II):, in which : R1 and R2 independently represent alkyl, substituted acyl, aryl, substituted aryl, acyl and substituted acyl; and ii) calcining the mixture without applying reduced pressure at a sufficient temperature and for a sufficient time to ensure mobilization and decomposition of the precursor compound; iii) obtaining a metal-doped zeolite or zeolite-like structure. 2. The method according to claim 1, wherein the zeolites or zeolite-like structures are selected from the group consisting of one of the following structures or a mixture thereof: a faujasite type zeolite, a pentasil type, a zabolite zeolite or a zeolite-like structure, for example, SAPO-34 or other structures based on eight-membered structural rings CHA types and corresponding structures, for example, AEI, AFT, AFX, DDR, ERI, ITE, ITW, KFI, LEV, LTA, PAU, RHO, and UFI types. 3. The method according to claim 1 or 2, in which the metal