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    • 6. 发明申请
    • PRODUCTION OF GLYCOLALDEHYDE BY HYDROUS THERMOLYSIS OF SUGARS
    • 通过水热法制备甘油三酯
    • WO02040436A1
    • 2002-05-23
    • PCT/CA2001/001562
    • 2001-11-08
    • C07C45/00C07C45/60C07C45/67C07C45/78C07C45/79C07C47/19C07C45/51
    • C07C47/19C07C45/00C07C45/60C07C45/673C07C45/78C07C45/79
    • The present invention provides a method for the production of glycolaldehyde with high specificity. The hydrous thermolysis consists of the spraying of aqueous sugar solutions containing from 25 to 80 % of water but preferably 30 to 60 % water, as a fine mist into a reactor held at the between 500 and 600 DEG C , but preferably between 520 and 560 DEG C and the condensation of the resulting vaporous product in a surface condenser with optional heat recovery. The residence time of the vaporous product in the reactor should be in the range 0.1 -5 seconds, but preferably in the range 0.5 to 2 seconds. Aldose monomeric sugars, preferably glucose (also known as dextrose), are preferred for use in the aqueous solution. The yield of glycolaldehyde in the condensed liquid is minimum 50 % by weight of the sugar fed for glucose solutions.
    • 本发明提供了高特异性生产乙二醇的方法。 含水热解包括将含有25-80%水但优选30-60%水的糖水溶液作为细雾喷入保持在500-600℃之间但优选520-560℃的反应器中 并将所得蒸气产物在表面冷凝器中冷凝,并可选择热回收。 蒸气产物在反应器中的停留时间应在0.1-5秒的范围内,但优选在0.5至2秒的范围内。 醛糖单体糖,优选葡萄糖(也称为葡萄糖),优选用于水溶液中。 冷凝液中的乙二醇的产率至少为葡萄糖溶液的糖的50重量%。