发明授权
- 专利标题： Manufacture of aqueous formaldehyde
- 专利标题（中）： 甲醛水溶液的制造
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申请号： US278811申请日： 1981-06-29
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公开(公告)号： US4348540A公开(公告)日： 1982-09-07
- 发明人: Theodore V. Ferris , Richard C. Kmetz
- 申请人： Theodore V. Ferris , Richard C. Kmetz
- 申请人地址： MO St. Louis
- 专利权人： Monsanto Company
- 当前专利权人： Monsanto Company
- 当前专利权人地址： MO St. Louis
- 主分类号： B01D3/14
- IPC分类号： B01D3/14 ; B01D3/34 ; B01J23/00 ; C07B61/00 ; C07C29/76 ; C07C45/00 ; C07C45/38 ; C07C45/78 ; C07C47/055 ; C07C67/00 ; B01D3/16 ; C07C47/058
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 methanol and water by a low energy process at relatively low temperature by means of recycled inert gas in a stripping column comprising at least about 1.5 theoretical transfer units for stripping methanol.
公开/授权文献
- US5520671A Urinal device 公开/授权日：1996-05-28
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