Patents by Inventor Tatjana STEVANOVIC

Tatjana STEVANOVIC 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).

  • ORGANOSOLV PROCESS FOR THE EXTRACTION OF HIGHLY PURE LIGNIN AND PRODUCTS COMPRISING THE SAME
    Publication number: 20190062359
    Abstract: A highly pure lignin comprising a lignin content of at least 97% and characterized by a low carbohydrate content and substantially no sulfur content is disclosed herein. An organosolv process for extracting the highly pure lignin is also disclosed herein. The process comprises pretreating a lignocellulosic material in a first polar protic solvent, to remove extractive compounds and to provide a pretreated lignocellulosic material; and treating the pretreated lignocellulosic material with a Lewis acid in a second polar protic solvent.
    Type: Application
    Filed: June 9, 2016
    Publication date: February 28, 2019
    Applicant: UNIVERSITE LAVAL
    Inventors: Tatjana STEVANOVIC, Georges KOUMBA YOYA