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国内专利文献一种离子液体降解碳水化合物制备5-羟甲基糠醛的方法本发明公开了一种离子液体降解碳水化合物制备5-羟甲基糠醛的方法,包括:在反应器中加入碳水化合物、离子液体和助催化剂,并通入夹带剂,同时对反应体系持续抽真空,使真空度维持在100～500Pa,在120～180℃进行催化反应,反应时间10～60分钟;反应的同时,将与反应器产物出口相连接的分离器置于冰浴中收集产物,所述的分离器与所述的反应器产物出口通过保温连接管连通,所述的分离器与所述反应器保持相同的真空度。
Domestic patent literature A method for preparing 5-hydroxymethylfurfural by degrading carbohydrate with ionic liquid The invention discloses a method for preparing 5-hydroxymethyl furfural by degrading carbohydrate with ionic liquid, which comprises the following steps: adding carbohydrate in a reactor, Ionic liquid and cocatalyst, and pass into the entrainer, while the reaction system is continuously evacuated, the degree of vacuum is maintained at 100 ~ 500Pa, at 120 ~ 180 ℃ for catalytic reaction, the reaction time is 10 to 60 minutes; the reaction at the same time, The separator connected to the outlet of the reactor product was placed in an ice bath and the product was collected. The separator was connected to the outlet of the reactor product through a thermal insulation connecting pipe. The separator kept the same as the reactor Degree of vacuum.