Invention Grant
- Patent Title: Dehydration method
- Patent Title (中): 脱水方法
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Application No.: US12064982Application Date: 2006-08-29
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Publication No.: US08257557B2Publication Date: 2012-09-04
- Inventor: Tateo Seo , Tetsuya Suzuta , Toshiaki Ui
- Applicant: Tateo Seo , Tetsuya Suzuta , Toshiaki Ui
- Applicant Address: JP Tokyo
- Assignee: Sumitomo Chemical Company, Limited
- Current Assignee: Sumitomo Chemical Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2005-253213 20050901
- International Application: PCT/JP2006/317403 WO 20060829
- International Announcement: WO2007/026911 WO 20070308
- Main IPC: B01D3/34
- IPC: B01D3/34 ; C07C37/02 ; C07C37/74 ; C07C39/04
Abstract:
A dehydration method for removing water from a hydrolysis reaction mixture containing unreacted water generated when monochlorobenzene is hydrolyzed to produce phenol, the method for dehydrating the hydrolysis reaction mixture includes supplying a hydrolysis reaction mixture to a distillation tower, supplying a liquid containing monochlorobenzene to the tower top portion of the distillation tower, and removing the substantially whole amount of the water in the hydrolysis reaction mixture together with monochlorobenzene from the tower top portion by distillation.
Public/Granted literature
- US20090159422A1 DEHYDRATION METHOD Public/Granted day:2009-06-25
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