发明名称 |
MANUFACTURE OF AQUEOUS FORMALDEHYDE |
摘要 |
Formaldehyde manufacture by oxidative-dehydrogenation of methanol over a silver or copper catalyst. Aqueous formaldehyde solution is obtained from the reaction and is stripped of a mixture of methanol, formaldehyde and water by a low energy process at relatively low temperature and low reflux in a still comprising at least about 1.5 theoretical plates, the stripping conditions being selected to allow substantial reduction of the methanol content of the aqueous formaldehyde solution and recycle of the methanol to the reactor. |
申请公布号 |
DE3267846(D1) |
申请公布日期 |
1986.01.16 |
申请号 |
DE19823267846 |
申请日期 |
1982.12.20 |
申请人 |
MONSANTO COMPANY |
发明人 |
FERRIS, THEODORE VINCENT;KMETZ, RICHARD CHARLES |
分类号 |
C07C47/052;B01J23/00;C07B61/00;C07C29/80;C07C45/00;C07C45/38;C07C45/78;C07C45/82;C07C47/055;C07C67/00 |
主分类号 |
C07C47/052 |
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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