MULTIMETALLIC MIXED OXIDES, ITS PREPARATION AND USE FOR THE OXIDATIVE DEHYDROGENATION OF ETHANE FOR PRODUCING ETHYLENE

摘要

A layered multimetallic oxide catalyst having the formula;M1 M2 M3 Oδwherein:M1 is selected from the group of Ag, Au, Zn, Sn, Rh, Pd, Pt, Cu, Ni, Fe, Co, an alkaline metal, an alkaline earth metal, a rare earth metal, and mixtures thereof;M2 is selected from the group of Ti, Hf, Zr, Sn, Bi, Sb, V, Nb, Ta and P, and mixtures thereof;M3 is selected from the group of Mo, W and Cr, and mixtures thereof;and where said multilayered metallic oxide exhibits a major X-ray diffraction peak between 5<2θ<15,is prepared by a process of mixing metallic precursors of M1, M2 and M3 to form a precursor mixture, hydrothermal treatment of the resulting mixture to obtain a homogeneous solid mixture, and thermally treating the solid mixture to activate the solid mixture and obtain said catalyst.

主权项

1. A process for preparing a layered multimetallic oxide catalyst having the formula
M1 M2 M3 Oδ wherein: M1 is selected from the group of Ag, Au, Zn, Sn, Rh, Pd, Pt, Cu, Ni, Fe, Co, an alkaline metal, an alkaline earth metal, a rare earth metal, and mixtures thereof; M2 is selected from the group of Ti, Hf, Zr, Sn, Bi, Sb, V, Nb, Ta and P, and mixtures thereof; M3 is selected from the group of Mo, W and Cr, and mixtures thereof; and where said multilayered metallic oxide exhibits a major X-ray diffraction peak between 5<2θ<15, the process comprising the steps of mixing metallic precursors of M1, M2 and M3 to form a precursor mixture, hydrothermal treatment of the resulting mixture to obtain a homogeneous solid mixture, and thermally treating the solid mixture to activate the solid mixture and obtain said catalyst.