Xuying Liu, Yujing Weng
In this paper, the oxidation of ethylene glycol is discussed, especially the selective oxidation of ethylene glycol to produce glycolic acid (GA). Ethylene glycol is used as an important chemical intermediate in several industrial applications, especially in the production of chemicals and materials. The oxidation of ethylene glycol involves a complex reaction mechanism and product distribution, and the yield and selectivity of glycolic acid are improved by reaction conditions. Different reaction conditions were used, including different reaction temperatures, glycol concentrations. In addition, the influence of solvent selection on the reaction path and product distribution was also discussed, and the results showed that the selectivity and conversion rate of glycolic acid were ideal when water was used as a solvent. The catalyst was then analyzed by high-performance liquid chromatography (HPLC) and other characterization methods (such as X-ray diffraction, transmission electron microscopy) to confirm the high activity and stability of the catalyst. In summary, this study provides a green and efficient synthesis method for the preparation of glycolic acid by ethylene glycol oxidation, and provides new insights for the design and optimization of catalysts.
Glycolic acid; Ethylene glycol; Green chemistry; Selective oxidation; Pt/C