Method for preparing 5-alkoxy methyl furfural from carbohydrate
A technology of alkoxymethylfurfural and sugar substances, which is applied in the field of organic solid waste recycling, can solve the problems of low efficiency, many side reactions, and low selectivity, so as to reduce side reactions, improve conversion efficiency, reduce The effect of the separation and purification process
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Embodiment 1
[0026] Add 0.1 g of glucose into a 15 mL reactor, add 1 g of ionic liquid 1-ethyl-3-methylimidazolium bromide brine and 2 mL of ethanol, respectively, add 2 mL of gasoline, and add 0.2 g of tin phosphate catalyst. Keep the stirring speed at 700 rpm, react at 140°C for 6 hours, separate the organic phase, and the yield of 5-ethoxymethylfurfural in the organic phase is 80%.
Embodiment 2
[0028] Add 0.1 g of cellulose hydrolyzate to a 15 mL reactor, add 1 g of ionic liquid 1-ethyl-3-methylimidazolium bromide brine and 2 mL of ethanol, respectively, add 2 mL of ethylene glycol dimethyl ether, and add 0.2 g titania supported tin catalyst. Keep the stirring speed at 700 rpm, react at 160°C for 8 hours, separate the organic phase, and the 5-ethoxymethylfurfural in the organic phase is 65%.
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