Patent ID: 8563756

Claim:
An apparatus for preparing hydroxymethylfurfural, comprising: a reaction area comprising a first organic layer comprising sugar and a solvent and a second organic layer comprising a solvent mixture, wherein hydroxymethylfurfural (HMF) and water are produced from the sugar through dehydration reaction in the first organic layer, and the hydroxymethylfurfural is extracted into the second organic layer through the solvent mixture; a boiling area comprising a mixing solution formed by the hydroxymethylfurfural and the solvent mixture, connected with the reaction area, wherein the mixing solution is boiled to form a first vapor, which flows into the reaction area, and the second organic layer in the reaction area is reflowed back into the boiling area; and a distillation area comprising water and a liquid layer having the solvent mixture, connected with the reaction area, wherein water and the first vapor in the reaction area are mixed to form a second vapor which flows into the distillation area, and the liquid layer is reflowed back into the second organic layer in the reaction area.