PREPARING METHOD OF HIGH DISPERSED-MIXED METAL OXIDE SUPPORTED CATALYST

摘要

The present invention adds aluminum and silicon-containing carriers having a high surface area to a metal complex salt solution obtained by adding an organic acid and a dihydroxy alcohol compound to a component metal salt, and mixes them in a liquid state at room temperature, and distills them under reduced pressure and microwaves at 70-150 ° C. Nitrogen oxide removal and hydrocarbon combustion reaction represented by the following formula (I) in which the mixed metal oxide is uniformly dispersed in the carrier in an amorphous and high surface area by heat treatment at a firing temperature of 300-700 ° C. Method for preparing a mixed metal oxide supported catalyst having catalytic activity in;Wherein A and B are lanthanide metals or alkali metals or alkaline earth metals, C and C 'are first-cycle transition metals or precious metals, and a, b, c and c' are stoichiometric values of 0 to 1. And a + b = 1, c + c '= 1 and the ratio of [a + b] to [c + c'] is in the range of 0.1-3.0: 1.0 and S is zeolite, alumina, silica, alumina- It relates to an aluminum and / or silicon-containing carrier such as silica.