Invention Grant
- Patent Title: Process for preparing cyclohexanone and cyclohexanol
- Patent Title (中): 制备环己酮和环己醇的方法
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Application No.: US11795868Application Date: 2006-01-17
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Publication No.: US07642384B2Publication Date: 2010-01-05
- Inventor: Larry Walker Wyatt
- Applicant: Larry Walker Wyatt
- Applicant Address: NL Heerlen
- Assignee: DSM IP Assets B.V.
- Current Assignee: DSM IP Assets B.V.
- Current Assignee Address: NL Heerlen
- Agency: Nixon & Vanderhye P.C.
- Priority: EP05075184 20050125; EP05075185 20050125
- International Application: PCT/EP2006/001003 WO 20060117
- International Announcement: WO2006/079562 WO 20060803
- Main IPC: C07C45/28
- IPC: C07C45/28

Abstract:
The present invention relates to a process for preparing cyclohexanone and cyclohexanol, said process comprising (a) neutralising acids and/or carbon dioxide present in an organic solution further comprising cyclohexylhydroperoxide by mixing the organic solution with a first aqueous base solution at a temperature of from 50 to 80° C. to form a first mixture comprising a first aqueous phase with a pH of from 8.5 to 13 and a first organic phase, (b) separating first aqueous phase from the first mixture resulting in a remaining mixture comprising first organic phase, (c) decomposing cyclohexylhydroperoxide present in said remaining mixture by mixing said remaining mixture with a second aqueous base solution at a temperature of from 60 to 110° C. to form a second mixture comprising a second aqueous phase and a second organic phase comprising cyclohexanone and cyclohexanol, (d) separating the second aqueous phase from the second organic phase at a temperature higher than 80° C.
Public/Granted literature
- US20090018367A1 Process for Preparing Cyclohexanone and Cyclohexanol Public/Granted day:2009-01-15
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