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Method of preparing 5-hydroxymethylfurfural from glucose

A technology of hydroxymethyl furfural and glucose, applied in the field of 5-hydroxymethyl furfural, can solve the problems of high cost, low universality, complicated operation, etc., and achieve good economical practicability, high operability, and corrosion reduction Effect

Pending Publication Date: 2017-06-09
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to overcome the disadvantages of complex operation, high cost, large pollution and low universality in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put 0.1g of glucose, 0.2g of boric acid, 0.1g of aluminum chloride, 6.1g of sodium chloride, 20mL of water, 20mL of dimethyl sulfoxide, and 40mL of isobutanol in a reactor and mix them evenly, and heat them in an oil bath until 100°C, the reaction time is 20min, after the reaction is completed, the reaction mixture is cooled to room temperature, and the yield of 5-hydroxymethylfurfural is 10.2% as measured by high performance liquid chromatography.

Embodiment 2

[0021] Put 0.1g of glucose, 0.4g of boric acid, 0.1g of aluminum chloride, 6.2g of potassium chloride, 20mL of water, 20mL of dimethyl sulfoxide, and 40mL of n-butanol in a reaction kettle and mix them evenly, and heat them in an oil bath to 140°C, the reaction time was 30min, after the reaction was completed, the reaction mixture was cooled to room temperature, and the yield of 5-hydroxymethylfurfural was determined to be 20.8% by high performance liquid chromatography.

Embodiment 3

[0023] Put 0.1g of glucose, 0.6g of boric acid, 0.1g of aluminum chloride, 6.3g of sodium chloride, 20mL of water, 20mL of dimethyl sulfoxide, and 40mL of tetrahydrofuran in a reaction kettle and mix them evenly, and heat them in an oil bath to 160°C , The reaction time was 40min. After the reaction was completed, the reaction mixture was cooled to room temperature, and the yield of 5-hydroxymethylfurfural was measured by high performance liquid chromatography to be 32.2%.

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PUM

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Abstract

The invention relates to a method of preparing 5-hydroxymethylfurfural from glucose, comprising the following specific steps: uniformly mixing the following initial raw materials: the glucose, an organic solvent, a composite catalyst and water, wherein the composite catalyst is compounded by one or at least two of a group consisting of a component A boric acid, a component B potassium chloride, calcium chloride, magnesium chloride, sodium chloride, aluminum chloride, cobalt chloride, zirconium oxychloride, sodium sulfate, ferric chloride, zinc chloride, nickel chloride, manganese chloride and other inorganic salts; putting mixed solution in a reactor; and heating tat a normal pressure to react and prepare the 5-hydroxymethylfurfural. The method disclosed by the invention has the advantages of no need of adding other solid catalysts or inorganic strong acid, moderate reaction conditions, simplicity in operation, less byproducts, low cost and capability of recycling the catalyst, and has the capacity of large-scale industrialized application.

Description

technical field [0001] The invention relates to 5-hydroxymethylfurfural, in particular to a method for preparing 5-hydroxymethylfurfural from glucose. Background technique [0002] As chemical resources such as petroleum, coal, and natural gas are decreasing day by day, the problems of resource shortage and sustainable development caused by this in the future have become major issues that need to be solved urgently. Biomass is the most widespread substance on the earth, and carbohydrates are an extremely important part of biomass. Finding efficient methods to prepare chemical intermediates such as 5-hydroxymethylfurfural from carbohydrates is the field of biomass development and utilization. extremely challenging work. 5-Hydroxymethylfurfural contains a methylol group and an aldehyde group in its molecule, and has a lively chemical reaction. After aldol condensation, hydrodeoxygenation and other processes, various products with high added value and new polymer materials can...

Claims

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Application Information

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IPC IPC(8): C07D307/46B01J27/10
CPCC07D307/46B01J27/10B01J35/19Y02P20/584
Inventor 杜长海徐志磊孙德
Owner CHANGCHUN UNIV OF TECH