发明申请
- 专利标题: PROCESS FOR PRODUCING EPOXIDES
- 专利标题(中): 生产环氧化物的方法
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申请号: US12508465申请日: 2009-07-23
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公开(公告)号: US20100029959A1公开(公告)日: 2010-02-04
- 发明人: William W. Fan , Christian D. Kneupper , Sascha Noormann , Renate Patrascu
- 申请人: William W. Fan , Christian D. Kneupper , Sascha Noormann , Renate Patrascu
- 申请人地址: US MI Midland
- 专利权人: DOW GLOBAL TECHNOLOGIES INC.
- 当前专利权人: DOW GLOBAL TECHNOLOGIES INC.
- 当前专利权人地址: US MI Midland
- 主分类号: C07D301/24
- IPC分类号: C07D301/24
摘要:
A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column, wherein the reactive distillation column includes a feed zone, a top zone disposed above the feed zone, and a bottom zone disposed below the feed zone; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; (d) condensing and phase separating the overheads fraction to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water; and (e) maintaining a liquid holdup per plate in the feed zone at a residence time of 10 seconds or less.
公开/授权文献
- US07985867B2 Process for producing epoxides 公开/授权日:2011-07-26
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