发明名称 |
Method for the continuous production of glutaraldehyde |
摘要 |
In a process for the continuous preparation of glutaraldehyde by reaction of an alkoxydihydropyran of the formula Iwhere R is C1-C20-alkyl, with water at from 0° C. to 200° C. and a pressure in the range from 0.01 bar to 16 bar to form glutaraldehyde and the alcohol corresponding to the alkoxy group, water and alkoxydihydropyran are fed continuously to a reaction column and a distillate enriched in the alcohol corresponding to the alkoxy group is taken off at the top of the column and a product enriched in glutaraldehyde is taken off at the bottom.This process makes it possible to prepare glutaraldehyde or C-substituted glutaraldehydes continuously in high purity in a simple manner with a low outlay in terms of apparatus.
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申请公布号 |
US6559346(B1) |
申请公布日期 |
2003.05.06 |
申请号 |
US20020069770 |
申请日期 |
2002.02.28 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
THERRE JOERG;OOST CARSTEN |
分类号 |
C07B61/00;C07C45/60;C07C45/82;C07C47/12;(IPC1-7):C07C45/42 |
主分类号 |
C07B61/00 |
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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