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Method for preparing 2,5-furandicarboxylic acid from 5-hydroxymethylfurfural by aqueous phase catalysis

A technology for hydroxymethyl furfural and furandicarboxylic acid, which is applied in the preparation of 5-hydroxymethyl furfural by aqueous phase catalytic oxidation, can solve problems such as environmental pollution, increased production cost, equipment corrosion, etc., and achieves high yield and easy separation. , the effect of good application prospects

Active Publication Date: 2016-08-17
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

Extensive use of inorganic alkali will increase production costs (investment in product acidification equipment, equipment corrosion, etc.), and cause environmental pollution

Method used

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  • Method for preparing 2,5-furandicarboxylic acid from 5-hydroxymethylfurfural by aqueous phase catalysis
  • Method for preparing 2,5-furandicarboxylic acid from 5-hydroxymethylfurfural by aqueous phase catalysis
  • Method for preparing 2,5-furandicarboxylic acid from 5-hydroxymethylfurfural by aqueous phase catalysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-14

[0023] Example 1-14: At different temperatures, Pt / Bi 2 o 3 or Pd / Bi 2 o 3 Catalytic oxidation of 5-hydroxymethylfurfural to prepare 2,5-furandicarboxylic acid reaction results are as follows figure 1 (Pt / Bi 2 o 3 )with figure 2 (Pd / Bi 2 o 3 ) shown. The specific experimental process is described as follows:

[0024] 0.064g 5-Hydroxymethylfurfural, 0.2g Pt / Bi 2 o 3 or Pd / Bi 2 o 3 (Active component content is 0.2wt%), 2mL deionized water is added in 10mL reactor, filled with oxygen to 0.1MPa, keep stirring at different temperatures for 5h. If the partial pressure of oxygen drops, supplement oxygen to maintain the pressure of oxygen at about 0.1MPa. After the reaction, cool to room temperature. Product analysis was performed by high performance liquid chromatography. The reaction solution was diluted with 80 mL of water, and then the catalyst was filtered off. After diluting the reaction liquid to a volume of 100 mL, samples were taken for high-performance liqu...

Embodiment 15-30

[0026] Examples 15-30: Different reaction times, Pt / Bi 2 o 3 or Pd / Bi 2 o 3 Catalytic oxidation of 5-hydroxymethylfurfural to prepare 2,5-furandicarboxylic acid reaction results are as follows image 3 (Pt / Bi 2 o 3 )with Figure 4 (Pd / Bi 2 o 3 ) shown. The specific experimental process is described as follows:

[0027] 0.064g 5-Hydroxymethylfurfural, 0.2g Pt / Bi 2 o3 or Pd / Bi 2 o 3 (active component content is 0.2wt%), 2mL of deionized water was added into a 10mL reactor, filled with oxygen to 0.1MPa, heated to 100°C under constant stirring, and kept for different reaction times. If the partial pressure of oxygen drops, supplement oxygen to maintain the pressure of oxygen at about 0.1MPa. After the reaction, cool to room temperature. Product analysis was performed by high performance liquid chromatography. The reaction solution was diluted with 80 mL of water, and then the catalyst was filtered off. After diluting the reaction liquid to a volume of 100 mL, sampl...

Embodiment 31-48

[0029] Examples 31-48: Different catalyst amounts, Pt / Bi 2 o 3 or Pd / Bi 2 o 3 Catalytic oxidation of 5-hydroxymethylfurfural to prepare 2,5-furandicarboxylic acid reaction results are as follows Figure 5 (Pt / Bi 2 o 3 )with Image 6 (Pd / Bi 2 o 3 ) shown.

[0030] The specific experimental process is described as follows:

[0031] Add 0.064g 5-hydroxymethylfurfural and 2mL deionized water into a 10mL reactor, then take 0.0064g, 0.0256g, 0.0512g, 0.0640g, 0., 1920g, 0.3200g, 0.4480g, 0.5760g, 0.6400g Pt / Bi 2 o 3 or Pd / Bi 2 o 3 (the content of the active component is 0.2wt%) was added thereinto, filled with oxygen to 0.1MPa, and heated to 100° C. under constant stirring, and kept for 5 hours. If the partial pressure of oxygen drops, supplement with oxygen. After the reaction, cool to room temperature. Product analysis was performed by high performance liquid chromatography. The reaction solution was diluted with 80 mL of water, and then the catalyst was filtered ...

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Abstract

A method for preparing 2, 5-furan diformic acid by water phase catalytic oxidation of 5-hydroxymethylfurfural is as follows: bismuth compound supported Pt or Pd is used as a catalyst, molecular oxygen is used as an oxidant, water is used as a solvent, efficient oxidation of the 5-hydroxymethylfurfural into the 2, 5-furan diformic acid can be realized, no alkali is added in the process, and the method has the advantages of mild reaction conditions, less oxidation by-products, repeatedly used catalyst and important application prospect.

Description

technical field [0001] The invention relates to a method for preparing 2,5-furandicarboxylic acid by catalytically oxidizing 5-hydroxymethylfurfural in an aqueous phase. Specifically, the method uses a bismuth compound loaded with Pt or Pd particles as a catalyst, and air or oxygen as an oxygen source. Water is used as a solvent to realize efficient oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid. Background technique [0002] The contradiction between the reduction of the total amount of fossil resources such as coal, oil, and natural gas and the rapid increase of human demand for energy has become increasingly prominent, and it is imminent to seek renewable alternative resources. Biomass resources are considered to be very potential clean and renewable alternative resources. The production of chemicals through the conversion of sugar compounds is an important process in biomass conversion. 5-Hydroxymethylfurfural is an important platform compound in ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/68B01J23/644B01J32/00
CPCB01J23/6447C07D307/68
Inventor 徐杰芦天亮杜中田刘俊霞高进苗虹
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI