Method for catalyzing carbohydrate to prepare 5-(hydroxymethyl) furfural (5-HMF) and levulinic acid (LA)

Abstract

The invention relates to a tungsten and tantalum containing catalyst for efficiently converting a carbohydrate to prepare 5-(hydroxymethyl) furfural (5-HMF) and levulinic acid (LA). The catalyst has high activity of converting the carbohydrate to prepare the HMF and the LA, is environment-friendly, is easy to separate and recover, can be reused, can not corrode equipment, has important industrial application significance and is an ideal solid acid catalyst for converting the carbohydrate.

Description

technical field

[0001] The present invention relates to the method for preparing 5-hydroxymethylfurfural (HMF) and levulinic acid (LA) by high-efficiency solid acid catalyst, promptly transforms biomass sugar source (hexose or rich in hexose) with solid acid catalyst Biomass), the catalyst can be recycled and reused, has no corrosion to equipment, is green and environmentally friendly, and has strong industrial application significance. Background technique

[0002] 5-Hydroxymethylfurfural (HMF) and levulinic acid (LA) are important bio-based platform compounds, a key intermediate between biomass chemistry and petroleum-based chemistry, using biomass as raw materials Preparation of HMF and LA, and then conversion into liquid fuels or bulk chemicals will be of great help to relieve the increasingly tight oil resources. It is reported that HMF can be converted into 2,5-dimethylfuran. This biofuel has better properties, such as octane number and boiling point, which are higher...

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