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Process for producing cyclohexanone

  • US 8,222,459 B2
  • Filed: 02/19/2009
  • Issued: 07/17/2012
  • Est. Priority Date: 06/13/1997
  • Status: Active Grant
First Claim
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1. A process for producing cyclohexanone, the process comprising:

  • (a) oxidizing cyclohexylbenzene to produce cyclohexylbenzene hydroperoxide;

    (b) converting cyclohexylbenzene hydroperoxide from (a) to produce an effluent stream comprising phenol and cyclohexanone;

    (c) feeding at least a portion of the effluent stream comprising phenol and cyclohexanone to at least one hydrogenation reaction zone; and

    (d) contacting the effluent stream portion with hydrogen in the presence of a hydrogenation catalyst in the hydrogenation reaction zone under conditions effective to convert at least part of the phenol in the effluent portion into cyclohexanone.

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