Loaded palladium catalyst and preparing method and its use

Abstract

The present invention belongs to the field of the preparation of palladium catalyst, and is especially supported palladium catalyst and its preparation process and application. The supported palladium catalyst is noble metal palladium supported onto nanometer alumina fiber carrier and has the supported amount of palladium as the active component in 0.1-1 wt%. The nanometer alumina fiber carrier is gamma-alumina fiber, and the noble metal palladium is supported onto the nanometer alumina fiber carrier through equal volume soaking process. The high dispersive supported palladium catalyst is used in hydrogenating anthraquinone to prepare hydrogen peroxide solution, has high hydrogenating effect and mild reaction condition, and suitable for industrial production.

Description

technical field

[0001] The invention belongs to the preparation of a palladium catalyst, in particular to a supported palladium catalyst, a preparation method and an application thereof. The novel high-dispersion supported palladium catalyst is used for anthraquinone hydrogenation to prepare hydrogen peroxide. Background technique

[0002] Noble metal catalysts are widely recognized for their excellent catalytic performance, but the resources of noble metals are limited and the cost is high. How to improve the utilization rate of noble metal catalysts and reduce the cost has become the focus of researchers at home and abroad. Among them, maximizing the dispersion of noble metal active centers and reducing the size of active centers has become one of the most important solutions. Hydrogen peroxide is an important chemical raw material. Since hydrogen peroxide is decomposed to produce water and oxygen, it has no secondary pollution to the environment and is a green chemical,...