Invention Grant
- Patent Title: Process for producing epoxides
- Patent Title (中): 环氧化物生产工艺
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Application No.: US12508465Application Date: 2009-07-23
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Publication No.: US07985867B2Publication Date: 2011-07-26
- Inventor: William W. Fan , Christian D. Kneupper , Sascha Noormann , Renate Patrascu
- Applicant: William W. Fan , Christian D. Kneupper , Sascha Noormann , Renate Patrascu
- Applicant Address: US
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US
- Main IPC: C07D301/24
- IPC: C07D301/24 ; B01D3/34

Abstract:
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.
Public/Granted literature
- US20100029959A1 PROCESS FOR PRODUCING EPOXIDES Public/Granted day:2010-02-04
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