发明公开
- 专利标题: Continuous alkoxidation process
- 专利标题(中): Verfahren zur kontinuierlichen Alkoxidierung。
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申请号: EP83890044.7申请日: 1983-03-24
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公开(公告)号: EP0091425A2公开(公告)日: 1983-10-12
- 发明人: Smith, Harry Martin , Williams, Raymond Daryl
- 申请人: FMC Corporation
- 申请人地址: 2000 Market Street Philadelphia Pennsylvania 19103 US
- 专利权人: FMC Corporation
- 当前专利权人: FMC Corporation
- 当前专利权人地址: 2000 Market Street Philadelphia Pennsylvania 19103 US
- 代理机构: Pawloy, Heinrich, Dr.
- 优先权: US366262 19820407
- 主分类号: C07C29/70
- IPC分类号: C07C29/70 ; C07C31/30 ; C07C43/13
摘要:
A continuous process for producing alkali metal alkoxides comprising continuously introducing an aqueous solution of an alkali metal hydroxide into an upper section of a column reactor; continuously vaporizing an alkanol or an alkoxyalkanol of 4 to 18 carbon atoms into a lower section of the reactor at a rate of at least about 2 to 4 moles of alcohol for each mole of alkali metal hydroxide introduced into the reaction zone; reacting the aliphatic alcohol with the alkali metal hydroxide in the reactor; concurrently removing water from the alkali metal hydroxide solution and the alkoxide formation from an upper section of the reactor as an azeotrope formed by excess alcohol and water; continuously condensing and separating the azeotrope into an alcohol phase and a water phase, the water phase being removed from the process and the alcohol phase being returned to the column reactor; and removing a substantially anhydrous reaction product consisting primarily of alkoxide product in excess alcohol from a bottom section of the reactor while simultaneously maintaining a nonoxidizing atmosphere while conducting the reaction.
公开/授权文献
- EP0091425B1 Continuous alkoxidation process 公开/授权日:1987-04-29
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