Preparation method of a novel hydrogenation and dechlorination catalyst

Abstract

The invention involves a new preparation method of hydrogenation dechlorination accelerant, it loads high scattering Pd atom cluster on nanometer amorphous alloy or nanometer Ni powder through replacement reaction, then prepares new surface NiPd alloy accelerant through crystallization treatment. The accelerant prepared through the invention has characteristics of small dimension of active components, good dispersion degree and high activity, and it applies to catalytic hydrogenation dechlorination reaction.

Description

technical field

[0001] The invention relates to a preparation method of a novel hydrodechlorination catalyst, more specifically a method for preparing a non-supported and supported NiPd alloy catalyst with high catalytic activity. Background technique

[0002] Chlorinated organic compounds are products in which one or several hydrogen atoms in a class of aliphatic hydrocarbons, aromatic hydrocarbons and their derivatives are replaced by chlorine atoms. It has a wide variety, including chlorinated aliphatic hydrocarbons, chlorinated benzenes (CBs), chlorinated phenols (CPs), polychlorinated biphenyls (PCBs) compounds, is an important chemical raw material, organic synthesis intermediate and organic solvent, For a long time, it has been widely used in chemical, pharmaceutical, pesticide, dye, electronic and other industries. The wide application of organic chlorinated compounds has also caused serious environmental pollution. This pollution problem has aroused widespread con...