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Method for synthesizing 5-hydroxymethylfurfural by catalyzing glucose conversion

A technology for the conversion of hydroxymethylfurfural and glucose, applied in chemical instruments and methods, molecular sieve catalysts, physical/chemical process catalysts, etc., can solve the problems of insufficient conversion of glucose and low efficiency of biomass development and utilization, and achieve high industrial production Application value, improvement of resource utilization efficiency, and low equipment cost

Pending Publication Date: 2022-07-26
ANHUI AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the yield of 5-hydroxymethylfurfural prepared by the above method is only 29.86-36.23%, glucose cannot be fully converted into 5-hydroxymethylfurfural, and there is a problem of low efficiency of biomass development and utilization

Method used

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  • Method for synthesizing 5-hydroxymethylfurfural by catalyzing glucose conversion
  • Method for synthesizing 5-hydroxymethylfurfural by catalyzing glucose conversion
  • Method for synthesizing 5-hydroxymethylfurfural by catalyzing glucose conversion

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Embodiment 1

[0044] The embodiment of the present application discloses a method for catalyzing the conversion of glucose to synthesize 5-hydroxymethylfurfural, comprising the following specific steps:

[0045] (1) A thick-walled pressure-resistant bottle made of high borosilicate glass was used as a reaction vessel, and 100 mg of glucose, 30 mg of H-β molecular sieve, 200 mg of NaCl, 4 mL of tetrahydrofuran and 1 mL of deionized water were added to the thick-walled pressure-resistant bottle, wherein , SiO of H-β molecular sieve 2 with Al 2 O 3 The ratio is 30; the outer diameter of the thick-wall pressure bottle is 36mm, the height is 70mm, and the capacity is 15mL. The thick-wall pressure bottle has the advantages of good heat transfer effect and uniform heat conduction.

[0046] After adding the rotor to the thick-walled pressure-resistant bottle, put the thick-walled pressure-resistant bottle into an oil bath pot with a magnetic stirrer to stir, the temperature of the oil bath pot is...

Embodiment 2

[0052] The difference between this application and Example 1 is: the SiO of H-β molecular sieve 2 with Al 2 O 3 The ratio is 25.

Embodiment 3

[0058] The difference between the present application and Example 1 is that the amount of glucose added is 80 mg.

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Abstract

The invention relates to the technical field of organic synthesis, in particular to a method for synthesizing 5-hydroxymethylfurfural by catalyzing glucose conversion, which comprises the following steps: in a two-phase system, taking an H-beta type molecular sieve as a catalyst, and catalytically converting glucose into 5-hydroxymethylfurfural, the mass ratio of the catalyst to the glucose is (30-50): (80-130); the ratio of SiO2 to Al2O3 in the H-beta type molecular sieve is 25 to 30. The reaction raw materials and the catalyst react in a pressure-resistant bottle, glucose is efficiently converted into 5-hydroxymethylfurfural through a one-pot method, the conversion rate of glucose can reach 100%, the yield of 5-hydroxymethylfurfural can reach 90%, and the method has the advantages of being simple in synthesis process, low in equipment cost, high in conversion efficiency and the like and is suitable for industrial production. The resource utilization efficiency of biomass raw materials is greatly improved; the H-beta type molecular sieve is cheap and easy to obtain and does not contain heavy metal, the conversion synthesis process is not easy to pollute the environment, and the catalyst, the reaction solvent and the like can be recycled, so that the method is green and environment-friendly, and has very high industrial production application value.

Description

technical field [0001] The invention relates to the technical field of organic synthesis, in particular to a method for catalyzing the conversion of glucose to synthesize 5-hydroxymethylfurfural. Background technique [0002] Energy resources play an indispensable role in the development of today's society, but it is not optimistic that fossil resources are not inexhaustible. The world's population is growing rapidly, and reserves of petroleum-based fossil fuels are dwindling. With the increasing depletion of fossil fuels, how to convert sustainable biomass resources into transportation fuels and chemical products has aroused the strong interest of scientific researchers. 5-Hydroxymethylfurfural is one of the important raw materials for the production of fossil fuels. [0003] 5-Hydroxymethylfurfural (HMF) is an important platform compound, which can be used to synthesize important and high-value chemical products, polymer materials, etc. For example, 5-hydroxymethylfurfur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/46B01J29/70
CPCC07D307/46B01J29/7007
Inventor 徐思泉邢馨忆高慧施羡
Owner ANHUI AGRICULTURAL UNIVERSITY
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