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Method for preparing 2,5-furandicarboxylic acid by photocatalysis of 5-hydroxymethyl furfural

A technology for hydroxymethyl furfural and furandicarboxylic acid, which is applied in the field of photocatalytic preparation of 2,5-furandicarboxylic acid from 5-hydroxymethyl furfural, can solve the problem of high cost of oxidizing agent, achieve high selectivity, obvious effect and reduce cost Effect

Active Publication Date: 2017-01-04
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The preparation method is environmentally friendly, has high selectivity and yield, and reduces cost, but the cost of the oxidizing agent is relatively high, mainly filling oxygen or hydrogen peroxide in an oxygen bottle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1.134g 5-hydroxymethylfurfural, 0.113g TiO 2 The catalyst and 20ml of water were heated to 88°C under magnetic stirring, and irradiated with ultraviolet light for 5h to complete the reaction. After testing, the conversion rate of 5-hydroxymethylfurfural reaches 95%, and the selectivity of 2,5-furandicarboxylic acid reaches 96%.

Embodiment 2

[0022] 1.134g of 5-hydroxymethylfurfural, 0.113g of CdS catalyst and 20ml of water were heated to 98°C under magnetic stirring and irradiated with visible light for 3h to complete the reaction. After testing, the conversion rate of 5-hydroxymethylfurfural reached 89%, and the selectivity of 2,5-furandicarboxylic acid was 96%.

Embodiment 3

[0024] 1.134g 5-hydroxymethylfurfural, 20ml water and 0.113g C 3 N 4 The catalyst was heated to 65°C under magnetic stirring and irradiated with ultraviolet light for 1 hour to complete the reaction. After testing, the conversion rate of 5-hydroxymethylfurfural reached 97%, and the selectivity of 2,5-furandicarboxylic acid was 99%.

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PUM

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Abstract

The invention discloses a method for preparing 2,5-furandicarboxylic acid by photocatalysis of 5-hydroxymethyl furfural. 5-hydroxymethyl furfural is used as a raw material, a photocatalytic catalyst is utilized, water is used as a solvent, under light conditions, oxygen or hydrogen peroxide produced by water is catalyzed and decomposed by light to be an oxidant, and 5-hydroxymethyl furfural is selectively oxidized to prepare 2,5-furandicarboxylic acid. A reaction system is environment-friendly, green and pollution-free; 2,5-furandicarboxylic acid can be efficiently and selectively synthesized at low temperature, and the conversion rate of the 5-hydroxymethyl furfural reaches 90% or above.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a method for photocatalytically preparing 2,5-furandicarboxylic acid from 5-hydroxymethylfurfural. Background technique [0002] Currently, with the depletion of fossil fuels, finding renewable and sustainable alternatives to fuels and chemicals has become a research focus. The chemical industry has focused their attention on production processes using environmentally friendly biomass resources. Biomass resources have the advantages of low price, abundant reserves, and renewable. Lignin, cellulose, hemicellulose and other renewable substances are rich in resources. They can be used to transform and prepare platform compound 5-hydroxymethylfurfural. 5-Hydroxymethylfurfural is an important fine chemical raw material, and various derivatives can be prepared through reactions such as oxidation, hydrogenation and condensation. [0003] 2,5-furandicarboxylic acid is internationally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/68
CPCC07D307/68
Inventor 李振环曹磊苏坤梅程博闻
Owner TIANJIN POLYTECHNIC UNIV
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