Esterification of acetic acid with isobutanol catalyzed by ionic liquid n-sulfopropyl-3-methylpyridinium trifluoromethanesulfonate: Experimental and kinetic study

This study presented a green [HSO3-PMPY][CF3SO3] ionic liquid catalyst for the esterification of acetic acid with isobutanol, which showed high catalytic activity, excellent reusability, favorable phase separation, and non-corrosiveness. In addition, the NIH-M models could correctly describe the kinetic behavior of the esterification process.