Manufacturing process of 2, 5- Furandicarboxylic acid (FDCA) by chemical oxidation method

2,5-Furandicarboxylic Acid (FDCA) is an emerging bio-based platform compound in the booming development of green chemistry and materials science. It is a green substitute for terephthalic acid (PTA). FDCA inherits the excellent properties of PTA. , also endows the material with new properties of reproducibility and biodegradability. Among them, chemical oxidation method, as an important way to prepare FDCA, has attracted much attention due to its high efficiency and controllability.

1. The core of preparing FDCA by chemical oxidation method is to use an oxidant to oxidize the key intermediate 5-Hydroxymethylfurfural (HMF) into FDCA under the action of a catalyst. In this process, the selection of oxidant, design of catalyst and optimization of reaction conditions are key factors that determine yield, selectivity and cost.

2. In chemical oxidation methods, commonly used oxidants include oxygen, hydrogen peroxide, potassium permanganate, etc. Oxygen, as an environmentally friendly and economical oxidant, has significant advantages in industrial production. Since the oxidizing ability of oxygen is relatively weak, it usually needs to be used in conjunction with an efficient catalyst to achieve efficient conversion of HMF to FDCA.

3. Catalysts play a vital role in chemical oxidation methods. They can reduce the activation energy of the oxidation reaction and increase the reaction rate. They can also selectively promote the formation of target products and inhibit the formation of by-products, thereby improving the product quality. selectivity and purity. At present, researchers have developed a variety of catalysts for FDCA preparation, including metal oxides (such as vanadium, molybdenum, tungsten oxides), noble metal catalysts (such as platinum, palladium, ruthenium, etc.) and non-metal catalysts (such as Carbon-based catalysts), these catalysts have their own characteristics and exhibit different catalytic properties under different reaction conditions.

4. In addition to the selection of oxidants and catalysts, the optimization of reaction conditions is also the key to achieving efficient preparation of FDCA. This includes the control of factors such as reaction temperature, pressure, solvent selection, and reaction time. By systematically adjusting these parameters, the yield and selectivity of FDCA can be maximized while reducing production costs and energy consumption.