Process for the preparation of 5-hydroxymethylfurfural from guava husk catalyzed by metal-based ionic liquid-organic acid

By using a metal-based ionic liquid-organic acid catalyst to convert passion fruit shell powder into 5-hydroxymethylfurfural in a hydrothermal reaction, the problem of low yield and high cost of direct synthesis of 5-hydroxymethylfurfural from cellulose is solved, and efficient and low-cost resource utilization of waste is achieved.

CN117920343BActive Publication Date: 2026-05-01JIMEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIMEI UNIV
Filing Date
2024-01-22
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing technologies for the direct synthesis of 5-hydroxymethylfurfural from cellulose suffer from low yield, high production costs, and complex processes, making it difficult to effectively utilize agricultural and forestry waste resources.

Method used

Passion fruit shell powder was converted into 5-hydroxymethylfurfural using a metal-based ionic liquid-organic acid catalyst under hydrothermal reaction conditions. The metal-based ionic liquid and organic acid were used as catalysts, and the reaction conditions, including temperature, time, and solvent ratio, were optimized to improve the formation rate of 5-hydroxymethylfurfural.

Benefits of technology

This method enables the efficient conversion of agricultural and forestry waste resources into 5-hydroxymethylfurfural, simplifies the operation process, reduces production costs, and increases the production rate of 5-hydroxymethylfurfural.

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Abstract

The application discloses a method for preparing 5-hydroxymethylfurfural by catalyzing passion fruit shell with a metal-based ionic liquid-organic acid, and relates to the field of comprehensive utilization of waste biomass resources. The method comprises the following steps: passion fruit shell powder is converted into 5-hydroxymethylfurfural in a dimethyl sulfoxide aqueous solution by a catalyst. The catalyst comprises a metal-based ionic liquid and an organic acid. The addition amount of the metal-based ionic liquid accounts for 4.5% of the total mass of the reaction system, and the addition amount of the organic acid accounts for 3.6% of the total mass of the reaction system. The method for preparing 5-hydroxymethylfurfural by catalyzing passion fruit shell with a metal-based ionic liquid-organic acid disclosed by the application uses passion fruit shell powder as a raw material, and directly converts the passion fruit shell powder into 5-hydroxymethylfurfural under hydrothermal reaction conditions by using a metal-based ionic liquid and an organic weak acid as a catalyst, so that the generation rate of 5-hydroxymethylfurfural is improved, and waste resources are realized.
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Citation Information

Patent Citations

  • Method for preparing 5-hydroxymethylfurfural from chitosan under catalysis of organic weak acid-ionic liquid

    CN117327033A

  • Method for preparing 5-hydroxymethylfurfural from passion fruit shells under catalysis of sulfonated ionic liquid

    CN117327034A