5-羟甲基糠醛及糖类定向转化制备2,5-呋喃二甲酸的研究进展

Recent advances in the preparation of 2,5-furandicarboxylic acid from 5-hydroxymethylfurfural and sugars

摘要:

2,5-呋喃二甲酸（FDCA）是重要的生物质基平台化学品，具有与重要化工原料对苯二甲酸（PTA）相同的官能团和相似的芳香性，完全可以代替PTA制备绿色环保且可再生的高性能聚合物产品。生物质基5-羟甲基糠醛（HMF）是制备FDCA的最佳原料。该文综述了近十年来HMF定向氧化制备FDCA过程中采用的“直接氧化法”、“贵金属催化氧化法”、“非贵金属催化氧化法”、“电催化氧化法”以及“生物酶催化氧化法”等，并对糖类原料直接制备FDCA的催化反应体系和经济可行性进行总结，重点综述了氧化过程中催化剂的开发和应用，同时对未来催化剂体系的设计提出几点建议，有望对FDCA的工业化应用产生积极的促进作用。

Abstract:

2,5-Furandicarboxylic acid (FDCA) is one of the perfect substitute candidates for terephthalic acid (PTA), an important chemical from the non-renewable fossil resource, due to the same functional groups and similar aromaticity between them. Biomass-based 5-hydroxymethylfurfural (HMF) is the preferred feedstock for the production of FDCA, herein, the selective oxidation of HMF to prepare FDCA through the oxidation reaction by oxidant directly, and catalytic oxidation by precious metal catalyst, non-precious metal catalyst, electrocatalytic and enzymic processes in the recent ten years have been reviewed systematically. In the meantime, the catalytic systems for the selective conversion of sugars into FDCA through catalytic dehydration and oxidation steps have also been summarized with their economic feasibility. Catalysts play the key role in the selective oxidation of HMF into FDCA with high efficiency; several suggestions have been given for the design of catalysts, and it will be helpful for the industrial application of FDCA in the future.