Patents by Inventor Tatiana Sonnenberg

Tatiana Sonnenberg 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).

  • Patent number: 8829249
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. The crude reaction mixture may be further purified to recover ethanol.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: September 9, 2014
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana Sonnenberg
  • Patent number: 8802901
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. Ethyl acetate from the crude reaction mixture may be recovered as returned to assist in recovering the esterification product.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: August 12, 2014
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana Sonnenberg
  • Patent number: 8748673
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising ethyl acetate, ethanol, and at least one alcohol having at least 4 carbon atoms. The ethanol is recovered with a reduced amount of the alcohol having at least 4 carbon atoms.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: June 10, 2014
    Assignee: Celanese International Corporation
    Inventors: R. Jay Warner, Wei Qi, Tatiana Sonnenberg
  • Publication number: 20130131394
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. The crude reaction mixture may be further purified to recover ethanol.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: R. Jay Warner, Wei Qi, Tatiana Sonnenberg
  • Publication number: 20130131395
    Abstract: Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. Ethyl acetate from the crude reaction mixture may be recovered as returned to assist in recovering the esterification product.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Applicant: CELANESE INTERNATIONAL CORPORATION
    Inventors: R. Jay Warner, Wei Qi, Tatiana Sonnenberg