Patents by Inventor Michael O. Streb

Michael O. Streb 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).

  • Purification of acetic acid from wood acetylation process
    Patent number: 7612232
    Abstract: A method of purifying acetic acid containing terpene and terpenoid impurities, includes: (a) supplying acetic acid containing terpene or terpenoid impurities and water to a distillation column; (b) azeotropically removing terpene or terpenoid impurities from the mixture of acetic acid and water supplied to the column as distillate; and (c) withdrawing a product stream from the column comprising acetic acid purified of terpene or terpenoid impurities. The method is particularly effective for purifying acetic acid recovered from a wood purification process.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: November 3, 2009
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Melchior A. Meilchen, Michael O. Streb, Nathan K. Powell, Rolf Soellner
  • PURIFICATION OF ACETIC ACID FROM WOOD ACETYLATION PROCESS
    Publication number: 20090247788
    Abstract: A method of purifying acetic acid containing terpene and terpenoid impurities, includes: (a) supplying acetic acid containing terpene or terpenoid impurities and water to a distillation column; (b) azeotropically removing terpene or terpenoid impurities from the mixture of acetic acid and water supplied to the column as distillate; and (c) withdrawing a product stream from the column comprising acetic acid purified of terpene or terpenoid impurities. The method is particularly effective for purifying acetic acid recovered from a wood purification process.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 1, 2009
    Inventors: R. Jay Warner, Melchior A. Meilchen, Michael O. Streb, Nathan K. Powell, Rolf Soellner