A palladium-iron-based catalyst, its preparation method and use

Abstract

The application discloses a preparation method of a palladium-iron-based catalyst. A carbon carrier is added into an iron precursor solution, and after impregnation, solid-liquid separation, washing, drying and calcination in an oxygen-containing atmosphere, an iron and carbon mixed carrier is obtained. Then the mixed carrier is impregnated in a palladium precursor solution, and after separation, washing and drying, the palladium-iron-based catalyst is obtained after reduction. The palladium-iron-based catalyst prepared by the method has high dispersion and stable palladium. In the reaction of selective hydrogenation of phenol to cyclohexanone, the conversion rate of phenol and the yield of cyclohexanone are both higher than 95%, and the catalyst has good catalytic stability.

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