Preparation method of supported catalyst for synthesizing chloroaniline through catalytic hydrogenation of chloronitrobenzene

Abstract

The invention relates to a preparation method of a supported catalyst for synthesizing chloroaniline through catalytic hydrogenation of chloronitrobenzene and particularly relates to a preparation method of a nitrogen-doped carbon material supported noble metal catalyst applied to the synthesis of chloroaniline through catalytic hydrogenation. The catalyst has the advantages of high catalytic activity, dechloridation inhibition capacity, long service life and the like, and the prepared chloroaniline product is high in purity.

Description

technical field

[0001] The invention relates to a preparation method of a catalyst for synthesizing chloroaniline. Specifically, it relates to a preparation method of a nitrogen-doped carbon material supported noble metal catalyst, which is applied to the synthesis of chloroaniline by catalytic hydrogenation. Background technique

[0002] Chloroaniline is a class of important organic synthesis intermediates, which can be widely used in the production of fine chemicals such as medicines, pesticides, and dyes. The industrialization methods of chloroaniline at home and abroad mainly include iron powder reduction method, alkali sulfide reduction method and catalytic hydrogenation method. The iron powder reduction method and the alkali sulfide reduction method have problems such as high cost, low yield, and large environmental pollution caused by the three wastes produced, and have basically been eliminated. The catalytic hydrogenation method has the advantages of short reactio...