2,5-Furandicarboxylic Acid Particles and Preparation Method and Application thereof

Abstract

The present application discloses 2,5-Furandicarboxylic Acid particles and a preparation method and application thereof, belonging to the technical field of polymerization reaction bio-based monomer preparation. Using 2,5-Furandicarboxylic Acid as raw material, after high-temperature dissolution in water, cooling, filtration, and drying, the FDCA particles exhibit an almost non-angular appearance, with smooth and rounded surface, high sphericity, good dispersibility, average particle diameter of 50-200 μm, loose bulk density of 0.7-1.0 g/mL, and repose angle of 25-40°. The present application improves the flowability of FDCA slurry by modifying the microscopic morphology and particle size distribution of FDCA solid particles, which facilitates the uniformity of materials during the polymerization process and shortens the polymerization reaction time. Additionally, it reduces the equivalent usage of ethylene glycol and helps lower the impurity content of diethylene glycol.

Dependencies are inferred from the claim text.