Patent ID: 8809226

Claim:
A method for preparing a carrier for a catalyst for oxidative dehydrogenation of n-butane comprising the following steps: (a) preparing each alcohol solution of zirconium and oxalic acid by dissolving the zirconium precursor and oxalic acid into an alcohol, respectively, wherein a molar ration of oxalic acid to zirconium being 2-5 to 1; (b) synthesizing zirconia by mixing the alcohol solution of zirconium and the alcohol solution of oxalic acid prepared in the above step (a); (c) obtaining zirconia used for the preparation of a magnesia-zirconia complex carrier by separating, drying and heating the solid component zirconia from the solution resulted from the above step (b); (d) impregnating zirconia obtained from the above step (c) with an aqueous magnesium salt solution; and (e) obtaining a magnesia-zirconia complex carrier for a catalyst for oxidative dehydrogenation of n-butane by drying and heating the product resulted from the above step (d).