Anthraquinone hydrogenation catalyst, its preparation method and application

By using an anthraquinone hydrogenation catalyst supported by a mixture of alumina and carbon nitride, the problems of insufficient catalytic activity and loss of precious metals in existing technologies have been solved, achieving efficient hydrogen peroxide production and reducing production costs.

CN122230766APending Publication Date: 2026-06-19GUANGXI RES INST OF CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXI RES INST OF CHEM IND CO LTD
Filing Date
2026-03-06
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing palladium-based catalysts have insufficient catalytic activity in the hydrogenation of anthraquinone to prepare hydrogen peroxide, and the precious metal palladium is easily lost, leading to increased production costs.

Method used

A catalyst was prepared by using a mixture of alumina and carbon nitride as a support and adding 0.1% to 1% of the Group VIII noble metal palladium as the active component. The catalyst was prepared by calcination, drying and reduction steps to optimize the electronic structure and dispersion of the active sites.

Benefits of technology

It significantly improved catalytic activity, reduced the loss of the precious metal palladium, lowered production costs, and enhanced the economics and sustainability of hydrogen peroxide production.

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Abstract

This invention discloses an anthraquinone hydrogenation catalyst, its preparation method, and its application. The catalyst uses a mixture of alumina and carbon nitride as a support and palladium as the active component. In the support, the mass content of C3N4 is 1%~30%; the mass content of the active component Pd in ​​the catalyst is 0.1%~1%. The catalyst of this invention, applied to the hydrogenation of anthraquinone to produce hydrogen peroxide, has the advantages of high hydrogenation efficiency and low production cost.
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Citation Information

Patent Citations

  • Palladium-based hydrogenation catalyst and application of palladium-based hydrogenation catalyst to anthraquinone hydrogenation

    CN104549246A