Invention Grant
US07642384B2 Process for preparing cyclohexanone and cyclohexanol 失效
制备环己酮和环己醇的方法

  • Patent Title: Process for preparing cyclohexanone and cyclohexanol
  • Patent Title (中): 制备环己酮和环己醇的方法
  • Application No.: US11795868
    Application Date: 2006-01-17
  • Publication No.: US07642384B2
    Publication 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
Process for preparing cyclohexanone and cyclohexanol
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.
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