Patents by Inventor Transito Lynne Macias

Transito Lynne Macias 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).

  • Continuous process for producing L-ascorbic acid
    Patent number: 6610863
    Abstract: The present invention provides methods and an apparatus for the manufacture of an L-ascorbic acid product in high yield by direct conversion of an aqueous solution containing 2-keto-L-gulonic acid by contact with an acid catalyst or under thermal self-catalyzed conditions at a conversion level that maximizes the formation of L-ascorbic acid and minimizes decomposition of the L-ascorbic acid thus formed. The separation process for L-ascorbic acid and KLG is operated in such a way that an efficient separation process allows the majority of the KLG to be recycled for further conversion. The product stream from the separation process is then subjected to a recovery step to obtain crystalline L-ascorbic acid product.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: August 26, 2003
    Assignee: Eastman Chemical Company
    Inventors: Bhaskar Krishna Arumugam, Nick Allen Collins, Transito Lynne Macias, Steven Thomas Perri, Jeffrey Earl Grant Powell, Chester Wayne Sink, Michael Roy Cushman
  • Continuous process for producing L-ascorbic acid
    Publication number: 20020151726
    Abstract: The present invention provides methods and an apparatus for the manufacture of an L-ascorbic acid product in high yield by direct conversion of an aqueous solution containing 2-keto-L-gulonic acid by contact with an acid catalyst or under thermal self-catalyzed conditions at a conversion level that maximizes the formation of L-ascorbic acid and minimizes decomposition of the L-ascorbic acid thus formed. The separation process for L-ascorbic acid and KLG is operated in such a way that an efficient separation process allows the majority of the KLG to be recycled for further conversion. The product stream from the separation process is then subjected to a recovery step to obtain crystalline L-ascorbic acid product.
    Type: Application
    Filed: December 21, 2001
    Publication date: October 17, 2002
    Inventors: Bhaskar Krishna Arumugam, Nick Allen Collins, Transito Lynne Macias, Steven Thomas Perri, Jeffery Earl Grant Powell, Chester Wayne Sink, Michael Roy Cushman