发明名称 |
Production of glycolaldehyde by hydrous thermolysis of sugars |
摘要 |
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° C., but preferably between 520 and 560° 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.
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申请公布号 |
US2004022912(A1) |
申请公布日期 |
2004.02.05 |
申请号 |
US20030416918 |
申请日期 |
2003.05.16 |
申请人 |
MAJERSKI PIOTR A;PISKORZ JAN K;RADLEIN DESMOND ST. A.G. |
发明人 |
MAJERSKI PIOTR A;PISKORZ JAN K;RADLEIN DESMOND ST. A.G. |
分类号 |
C07C45/00;C07C45/60;C07C45/67;C07C45/78;C07C45/79;C07C47/19;(IPC1-7):A23L1/22 |
主分类号 |
C07C45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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