Method for preparing 2,5-furandicarboxylic acid through catalytic oxidation

A furandicarboxylic acid and catalytic oxidation technology, applied in the direction of organic chemistry, can solve the problems of reduced activity and poor catalyst reusability, and achieve the effects of low cost, improved catalytic performance and excellent performance

Active Publication Date: 2014-04-16
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

However, the catalyst has poor reusability, and the activity is obviously reduced when used for the second time at 130°C

Method used

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  • Method for preparing 2,5-furandicarboxylic acid through catalytic oxidation
  • Method for preparing 2,5-furandicarboxylic acid through catalytic oxidation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add Au / MgO (Au 0.5wt%) catalyst, 1mmol 5-hydroxymethylfurfural, NaOH, and 10ml water into a stainless steel autoclave with polytetrafluoroethylene lining inside, in which metal: 5-hydroxymethylfurfural: NaOH=0.015:1:4 (mol:mol:mol). Adopt automatic temperature controller to heat up to reaction temperature 30 ℃, add 0.3MPa oxygen, react for 5 hours, keep pressure constant in the reaction process. The reaction product was analyzed by HPLC, and the reaction results are shown in Table 1.

Embodiment 2

[0021] Add Ru / MgO (Ru 5%) catalyst, 1 mmol 5-hydroxymethylfurfural, NaOH and 10 mL water into a stainless steel autoclave with a polytetrafluoroethylene liner inside, where metal: 5-hydroxymethylfurfural: NaOH =0.015:1:4 (mol:mol:mol). Adopt automatic temperature controller program to heat up to reaction temperature 60 ℃, add 0.3MPa oxygen, react for 5 hours, keep pressure constant in the reaction process. The reaction product was analyzed by HPLC, and the reaction results are shown in Table 1.

Embodiment 3

[0023] Pt / MgO (Pt 2wt%) catalyst, 2mmol 5-hydroxymethylfurfural, Na 2 CO 3 Add 10 ml of water to a stainless steel autoclave with a polytetrafluoroethylene liner inside, where metal: 5-hydroxymethylfurfural: Na 2 CO 3 =0.015:1:4 (mol:mol:mol). Adopt automatic temperature controller to heat up to reaction temperature 80 DEG C, add 0.3MPa oxygen, react for 12 hours, keep pressure constant in the reaction process. The reaction product was analyzed by HPLC, and the reaction results are shown in Table 1.

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Abstract

The invention discloses a method for synthesizing 2,5-furandicarboxylic acid through catalytic oxidation by using 5-hydroxymethylfurfural as a raw material. 5-hydroxymethylfurfural can be oxidized by using oxygen or air as an oxidant in the presence of a catalyst prepared by loading an alkaline carrier with noble metal with high efficiency and high selectivity to synthesize 2,5-furandicarboxylic acid. A catalytic reaction is easy to operate and mild in conditions; when 5-hydroxymethylfurfural is fully converted, the selectivity of the product-2,5-furandicarboxylic acid can reach more than 99%; the catalyst is good in reusability.

Description

technical field [0001] The invention relates to the field of chemistry and chemical engineering, in particular to a method for synthesizing 2,5-furandicarboxylic acid. Background technique [0002] 2,5-Furandicarboxylic acid, also known as furan-2,5-dicarboxylic acid, is an important organic compound that can be used as a starting material in the production of biodegradable polyester plastics, anti-corrosion and fire-resistant materials, energy Chemicals, pharmaceutical intermediates, etc. According to its important value and application prospect, in 2004, the U.S. Department of Energy proposed to include it in twelve kinds of bio-based platform chemicals (T.Werpy, G.Petersen, Top value added chemicals from biomass volume i:results of screening for potential candidates from sugars and synthesis gas. US Department of Energy Report, 2004, Oak Ridge). 2,5-furandicarboxylic acid has a furan ring structure and two carboxyl functional groups, which are similar to terephthalic ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/68
CPCC07D307/68
Inventor 马红徐杰聂鑫蔡嘉莹任秋鹤车鹏华
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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