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Method for purifying 5-hydroxymethylfurfural

A technology of hydroxymethylfurfural and chloromethylation, applied in the field of 5-hydroxymethylfurfural purification, can solve the problem that impurities cannot be removed

Active Publication Date: 2016-07-13
林口森豪糠醛有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The method for purifying 5-hydroxymethylfurfural (HMF) reported in the literature at present mainly adopts the method of distillation, and the obtained 5-hydroxymethylfurfural (HMF) still contains some impurities that cannot be removed, such as hydroxymethylformylfuran, New purification methods are needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1. Preparation of adsorbent: Add 100Kg chloromethylated polystyrene resin, 800Kg ethyl acetate, 12Kg urotropine, 0.3Kg2-furan ethylamine, 0.05Kg1-ethyl-3- Methylimidazole bis(trifluoromethylsulfonyl)imide, reacted at 40°C for 30h, washed with water during filtration, and dried to obtain the adsorbent;

[0022] Step 2. Adsorption and purification of 5-hydroxymethylfurfural:

[0023] Adsorb 100Kg of industrial grade 5-hydroxymethylfurfural through a chromatographic column equipped with an adsorbent at a temperature of 20°C and a flow rate of 2BV / h to obtain a purified product of 5-hydroxymethylfurfural. See Table 1 for the mass percentage content of 5-hydroxymethylfurfural, numbered M-1.

Embodiment 2

[0025] Step 1. Preparation of adsorbent: Add 100Kg chloromethylated polystyrene resin, 500Kg ethyl acetate, 10Kg urotropine, 0.1Kg2-furan ethylamine, 0.01Kg1-ethyl-3- Methylimidazole bis(trifluoromethylsulfonyl)imide was reacted at 20°C for 15h, washed with water during filtration, and dried to obtain the adsorbent;

[0026] Step 2. Adsorption and purification of 5-hydroxymethylfurfural:

[0027] Adsorb 100Kg of industrial grade 5-hydroxymethylfurfural through a chromatographic column equipped with an adsorbent at a temperature of 0°C and a flow rate of 1BV / h to obtain a purified product of 5-hydroxymethylfurfural. The mass percentage content of 5-hydroxymethylfurfural is shown in Table 1, and the code is M-2.

Embodiment 3

[0029] Step 1. Preparation of adsorbent: Add 100Kg chloromethylated polystyrene resin, 1000Kg ethyl acetate, 20Kg urotropine, 1Kg2-furan ethylamine, 0.1Kg1-ethyl-3-methanol in a 2000L reactor Imidazole bis(trifluoromethylsulfonyl)imide, reacted at 60°C for 50h, washed with water during filtration, and dried to obtain the adsorbent;

[0030] Step 2. Adsorption and purification of 5-hydroxymethylfurfural:

[0031] Adsorb 100Kg of industrial grade 5-hydroxymethylfurfural through a chromatographic column equipped with an adsorbent at a temperature of 40°C and a flow rate of 5BV / h to obtain a purified product of 5-hydroxymethylfurfural. See Table 1 for the mass percentage content of 5-hydroxymethylfurfural, numbered M-3.

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Abstract

The invention provides a method for purifying 5-hydroxymethylfurfural.Industrial-grade 5- hydroxymethylfurfural is adsorbed in a chromatographic column with adsorbent prepared through the patented technology, so that a 5-hydroxymethylfurfural purified product is obtained.

Description

technical field [0001] The invention relates to a method for preparing an adsorbent, in particular to a method for purifying 5-hydroxymethylfurfural. Background technique [0002] 5-Hydroxymethylfurfural (HMF) molecule contains a furan ring, an aldehyde group and a hydroxymethyl group. Its chemical properties are relatively active, and various derivatives can be prepared through reactions such as oxidation, hydrogenation and condensation. It is an important fine Chemical raw materials. Among the many biomass-based platform molecules, 5-hydroxymethylfurfural (HMF) is the most important class of molecules. It can be prepared not only from fructose dehydration, but also from glucose dehydration after isomerization, and even Prepared directly from cellulose. [0003] CN104557807 discloses a method for producing 5-hydroxymethylfurfural. The biomass raw material after removing hemicellulose is hydrolyzed to obtain a mixed solution of glucose sugar, acetic acid and formic acid, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/46
CPCC07D307/46
Inventor 王琪宇王新
Owner 林口森豪糠醛有限责任公司
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