Method for producing high-purity 2,5-furandimethanol by catalyzing furfuryl alcohol using aprotic acid catalyst

Abstract

A method for producing high-purity 2,5-furandimethanol by catalyzing FAL using an aprotic acid catalyst is provided. The method includes: adding a modified zeolite catalyst, the FAL and a hydroxymethylation agent to an aprotic solvent, introducing nitrogen gas for reaction, filtering after the reaction to separate a solid phase and a liquid phase, rotary evaporating the liquid phase to recover the solvent, and then continuing to heat to collect a solid to obtain the high-purity 2,5-furandimethanol; where the modified zeolite catalyst is obtained by subjecting a β-zeolite to dealumination, followed by introducing a transition metal element as a Lewis acid active site into the zeolite via a solid-solid ion exchange method. As the aprotic acid catalyst, the modified zeolite can achieve high selectivity for the target product, featuring a simple synthesis process and separation-purification procedure, low raw material cost, and compliance with the development concept of green chemistry.

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