Patent ID: 7132093
Filing Date: 2006-11-07
Classification: B01J,C01B,C01G,C01P

Abstract:
1. Method for the preparation of an ordered mesoporous mixed oxide of lanthanum (La), of a metal M selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu and Zn, and of zirconium (Zr) or cerium (Ce), which comprises a) preparing an amorphous solution of a La-M precursor and adding a salt of zirconium or cerium thereto, b) acidifying said solution in the presence of a surfactant under conditions to obtain a clear homogeneous solution, c) adjusting pH of said homogeneous solution under conditions to form a solid precipitate, d) separating the solution and the surfactant from the precipitate, and e) calcinating the precipitate to obtain said ordered mesoporous mixed oxide La-M-[Zr or Ce].