Patents by Inventor Deirdre R. Williams

Deirdre R. Williams has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the recovery of cyclohexanone and cyclohexanol from cyclohexanone production distillation bottoms
    Patent number: 6255533
    Abstract: Organic by-products having higher boiling points than cyclohexanone (usually obtained from the bottoms of a distillation operation to separate cyclohexanone from other reaction products during cyclohexanone production) can be converted to recoverable cyclohexanone and cyclohexanol using a catalyst having high aluminum oxide concentrations. The preferred catalyst is one which has an aluminum oxide (Al2O3) content of at least about 95 wt. %, and more preferably greater than about 99 wt. %.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: July 3, 2001
    Assignee: BASF Corporation
    Inventors: Andrew J. McNabb, Deirdre R. Williams