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Triphasic system for direct conversion of sugars to furandicarboxylic acid

A furandicarboxylic acid, conversion technology, applied in the direction of organic chemistry, chemical instruments and methods, chemical/physical processes, etc., to achieve the effect of high yield

Inactive Publication Date: 2017-08-01
AGENCY FOR SCI TECH & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such reactions can only be carried out under the harsh conditions of high temperature and pressure

Method used

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  • Triphasic system for direct conversion of sugars to furandicarboxylic acid
  • Triphasic system for direct conversion of sugars to furandicarboxylic acid
  • Triphasic system for direct conversion of sugars to furandicarboxylic acid

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Embodiment Construction

[0031] An exemplary, non-limiting embodiment of the one-pot process will now be disclosed.

[0032] Provided is a one-pot process for producing furandicarboxylic acid from carbohydrates, the process comprising:

[0033] a) reacting said carbohydrate via a dehydration reaction to produce an intermediate in a first solvent phase; b) contacting said first solvent phase at a first contact zone with a second solvent phase at a first contact zone; c) extracting the intermediate into the second solvent phase; d) contacting the second solvent phase directly with a third solvent phase at a different contact zone; and e) oxidizing the intermediate to The furandicarboxylic acid is produced in the third solvent phase.

[0034]In step a), said carbohydrate may be a carbohydrate capable of being dehydrated to said intermediate. The carbohydrates may preferably be selected from cellulose, fructose, glucose, any other sugar, or isomers thereof, such as D-glucose or D-fructose. Fructose and...

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Abstract

There is provided a one-pot process for the conversion of sugars to furancarboxylic acids, such as 2,5-furancarboxylic acid (FDCA), in a triphasic system (e.g. water or tetraethylammonium bromide (TEAB)-methyl isobutyl ketone (MIBK)-water). In this reaction setup, sugars are first converted to 5-hydroxymethylfurfural (HMF) in a first phase. Then HMF is then extracted into a second phase and transferred to a third phase of water. In the third phase HMF is converted to the furancarboxylic acid. The overall acid yields obtainable are between about 78% and 50% for conversion from fructose and glucose, respectively. The invention further relates to an apparatus for the triphasic reaction. The apparatus comprises two chambers which allow for the chemically separated reaction of the sugars and the intermediate of the sugars to form the final product in one process. The process according to the invention may be useful for industrial fabrication.

Description

technical field [0001] The present invention generally relates to a one-pot process for the production of furandicarboxylic acids from carbohydrates. The furandicarboxylic acid is obtained in high yield using a three-phase reaction system. The invention further relates to an apparatus for a process allowing the direct production of furandicarboxylic acids from sugars. Background technique [0002] At the current rate of consumption, the world's crude oil reserves can only last a few decades. Therefore, there is an urgent need to develop renewable and sustainable alternatives to fuels and chemicals. The use of renewable biomass such as lignocellulose emerges itself as a good alternative for the production of biofuels and biochemicals. [0003] In applications, the production of polyamides, polyesters, and polyurethanes using biomass-based 2,5-furandicarboxylic acid (FDCA) instead of terephthalic acid has received significant attention. In another application, the furan-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/68
CPCC07D307/68B01J19/245
Inventor 衣光舜张玉根
Owner AGENCY FOR SCI TECH & RES
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