Solubility of 2,5-Furandicarboxylic Acid in Water-Acetic Acid and Water-Acetonitrile Binary Systems
1. Zanyu Technology Group Company Limited, Hangzhou 310009, China;
2. Zhejiang Key Laboratory of Bio Fuel Utilization Technology, Hangzhou 310014, China
Abstract The solubility data of 2,5-furandicarboxylic acid (FDCA) is an important basis for the study of catalytic deactivation and crystallization separation product in the catalytic oxidation of 5-HMF. At the temperature range of 40 ℃ to 90 ℃, the solubility of FDCA in water-acetic acid, water-acetonitrile binary systems was determined. The experiment results showed that the solubility of FDCA increased with the increase of temperature. In the single component system, the solubility order from large to small was: acitic acid>water>acetonitrile. In the binary systems, as the molar fraction of water increased in the system, the solubility of FDCA first increased then decreased, there was a maximum value. With the introduction of temperature correction coefficient, λh equation can better correlate the solubility data of FDCA.
