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Method for preparing furan derivatives through biomass catalytic conversion

A technology of furan derivatives and catalytic conversion, which is applied in the direction of organic chemistry, can solve the problems of difficult to obtain actual product yield, less separation yield data, etc., and achieve the effect of low price, low boiling point and low corrosion

Inactive Publication Date: 2013-06-19
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reported methods for producing HMF from biomass resources rarely give separation yield data, and most of the reported HMF yields are based on chromatographic analysis, and it is difficult to obtain the actual product yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: with 1.8g glucose, 0.020g SO 4 2- / ZrO 2 , 0.020g HT, 20ml of methanol were added to a 50mL stainless steel reactor with a polytetrafluoroethylene liner, heated to 100°C, and reacted at this temperature for 4h. Suction filtration to remove unreacted glucose and other insoluble impurities, add an appropriate amount of NaOH solution to the filtrate to neutralize, remove the solvent by rotary evaporation, add 2ml H 2 O, extracted with ethyl acetate to the organic phase, and the obtained organic phase was rotary evaporated to obtain a high-purity furan derivative with an isolation yield of 85%. The composition of the reaction products was initially determined using gas chromatography-mass spectrometry (GC-MS) and compared with the retention times of standard substances (HMF, 5-alkoxymethylfurfural, and furan acetal) in gas chromatography (GC) Yes, the qualitative main products are HMF, 5-alkoxymethylfurfural and furan acetals. The ratio of different types ...

Embodiment 2

[0018] Embodiment 2: with 1.8g sucrose, 0.120g SO 4 2- / ZrO 2 -Al 2 o 3 , 0.120g MgO, 20ml ethanol were added to a 50mL stainless steel reactor with a polytetrafluoroethylene liner, heated to 120°C, and reacted at this temperature for 8h. Suction filtration to remove unreacted fructose and other insoluble impurities, add an appropriate amount of NaOH solution to the filtrate to neutralize, remove the solvent by rotary evaporation, add 2ml H 2 O, extracted with ethyl acetate into the organic phase, and the obtained organic phase was rotary evaporated to obtain a high-purity furan derivative with an isolation yield of 91%. Use GC-MS to preliminarily determine the composition of the reaction product, and compare it with the retention time of standard substances (HMF, 5-alkoxymethylfurfural and furan acetal) in GC. The qualitative main products are HMF, 5- Alkoxymethylfurfural and furan acetals. The ratio of different types of furan derivatives is determined by 1 Confirmed ...

Embodiment 3

[0019] Embodiment 3: with 1.8g cellobiose, 0.210g SO 4 2- / ZrO2 -SiO 2 , 0.210gMg(OH) 2 , 20ml of n-propanol was added to a 50mL stainless steel reactor with a polytetrafluoroethylene liner, heated to 180°C, and reacted at this temperature for 40h. Suction filtration to remove unreacted xylose and other insoluble impurities, add an appropriate amount of NaOH solution to the filtrate to neutralize, remove the solvent by rotary evaporation, add 2ml H 2 O, extracted into the organic phase with methyl isobutyl ketone, and the obtained organic phase was rotary evaporated to obtain high-purity furfural with an isolation yield of 89%. Use GC-MS to preliminarily determine the composition of the reaction product, and compare it with the retention time of standard substances (HMF, 5-alkoxymethylfurfural and furan acetal) in GC. The qualitative main products are HMF, 5- Alkoxymethylfurfural and furan acetals. The ratio of different types of furan derivatives is determined by 1 Conf...

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Abstract

The invention relates to a method for preparing furan derivatives through biomass catalytic conversion. The method is characterized in that glucose, sucrose, cellobiose, cellulose, hemicellulose, lignocellulose, and the like are adopted as raw materials; under the effect of a catalyst, the raw materials are subjected to hydrolysis, isomerization, and dehydration reactions in a polar organic solvent, such that furan derivatives such as 5-hydroxymethylfurfural, 5-alkoxymethylfurfural, and furan acetals are obtained. The method has high raw material utilization rate. The system has the advantages of easy separation and easy purification.

Description

technical field [0001] The invention relates to the field of biomass conversion to prepare fine chemicals and energy chemicals, in particular, solid acid and solid base catalyzed glucose, sucrose, cellobiose, cellulose, hemicellulose, lignocellulose in polar organic solvents A method for preparing furan derivatives by hydrolysis, isomerization and dehydration. Background technique [0002] At present, energy chemicals and fuels mainly rely on fossil resources such as petroleum. With the decreasing reserves of fossil resources such as petroleum, seeking their substitutes to obtain chemical products and energy has received extensive attention from researchers at home and abroad. Biomass resources are the only recyclable organic carbon resources in nature, and carbohydrates account for the largest proportion of biomass resources, especially cellulose, hemicellulose, and lignocellulose are non-food crops with abundant sources. [0003] Furan derivatives such as furfural and 5-...

Claims

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Application Information

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IPC IPC(8): C07D307/46C07D307/02
Inventor 徐杰马继平王敏贾秀全黄义争高进苗虹
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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