Method for preparing primary amine through selective reductive amination of high-concentration furfural

By selectively converting furfural to tetrahydrofurfuralamine using a CoNi catalyst under high temperature and pressure, the problems of high catalyst cost and poor stability in existing technologies are solved, and the preparation of primary amines with high selectivity and high yield is achieved, making it suitable for industrial applications.

CN121652134APending Publication Date: 2026-03-13KUNMING UNIV OF SCI & TECH
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Patent Information

Application Number
CN202511857980.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-10
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing technologies for the efficient and economical preparation of highly selective primary amines (such as furfurylamine and tetrahydrofurfurylamine) suffer from problems such as high catalyst cost, poor stability, harsh reaction conditions, and mass transfer limitations, making it difficult to achieve industrial-scale production.

Method used

Using a CoNi catalyst under high temperature and high pressure conditions, furfural is used as a raw material and NH3 and H2 as reducing agents. By controlling reaction parameters such as temperature, time and catalyst ratio, furfural is selectively converted into tetrahydrofurfuralamine. The use of a heterogeneous catalyst facilitates recycling.

Benefits of technology

The preparation of tetrahydrofurfurylamine was achieved with high selectivity (up to 93.1%) and high yield. The catalyst has good stability, is suitable for industrial production, and is inexpensive.

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Abstract

The invention discloses a method for preparing primary amine by selective reductive amination of high-concentration furfural, which comprises the following steps: by taking furfural as a raw material, placing furfural, a CoNi catalyst and a solvent in a closed reactor, and stirring and reacting at 100-140 DEG C in the presence of NH3 and H2 to prepare tetrahydrofurfuryl amine; the catalyst is simple in preparation process and low in cost, flexible regulation and control of products can be achieved only by adjusting the metal proportion of the catalyst in the same reaction system, and the problems that in the prior art, due to low raw material concentration, mass transfer is limited, dependence on expensive noble metal catalysts is caused, the preparation process is complex and diverse, and the cost is low are effectively solved. The resource utilization rate and the economic benefit are not high.
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Citation Information

Patent Citations

  • Method for selectively preparing furfuryl amine or tetrahydrofurfuryl amine

    CN107245066A

  • A method for selectively preparing a furanamine or tetrahydrofuranamine from a furfural substance

    CN119874646B