Method for preparing 2, 5-furandicarboxylic acid by conducting catalytic oxidation on 5-hydroxymethylfurfural

Abstract

The invention relates to a method for preparing 2, 5-furandicarboxylic acid (FDCA) by conducting catalytic oxidation on a biomass derivative, namely 5-hydroxymethylfurfural (HMF) and belongs to the field of preparing renewable chemicals through synthesis of biomass and derivatives. The method comprises the steps that non-noble-metal, namely cerium-based composite oxide, is utilized as a catalyst; oxygen or air serves as an oxidizing agent; and effective catalytic oxidation is conducted on the 5-hydroxymethylfurfural for synthesizing the 2, 5-furandicarboxylic acid. The method is easy to operate and mild in condition; the yield of the 2, 5-furandicarboxylic acid can reach 86.7% at a maximum; in addition, the catalyst is easy to separate and recycle and good in reusability; and good industrialized application prospect is achieved.

Description

technical field

[0001] The invention relates to a method for preparing 2, 5-furandicarboxylic acid (FDCA), which belongs to the field of synthesis of renewable chemicals from biomass and derivatives. More specifically, it relates to a method for preparing 2,5-furandicarboxylic acid by oxidation of 5-hydroxymethylfurfural. Background technique

[0002] 2,5-Furandicarboxylic acid (FDCA), as a furan compound that can be prepared from biomass, was identified as one of the 12 "platform compounds" by the US Department of Energy in 2004. It has a furan ring and two carboxyl groups, and is expected to replace petroleum-based monomer terephthalic acid in the polyester industry to synthesize green degradable plastics; it can also replace phthalic acid to synthesize green non-toxic plasticizers. Introducing the utilization of biomass into the polyester industry can reduce the dependence of the polyester industry on petroleum energy and reduce environmental pollution. In addition, sta...

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