Patents by Inventor Xioa-Zhu Zhang

Xioa-Zhu Zhang 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).

  • Ozone/peroxymonosulfate process for delignifying a lignocellulosic material
    Patent number: 5411635
    Abstract: A process for delignifying a lignocellulosic material comprising exposing the material to a mixture of peracid and ozone. Preferred peracids include Caro's acid and peracetic acid. Also disclosed is a kraft pulp delignification mixture comprising in combination: (a) water; (b) a kraft pulp at 1-40% consistency; (c) a peracid; and (d) from 0.1 to 5.0% ozone on pulp.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: May 2, 1995
    Assignees: The Research Foundation of State University of New York, Solvay Interox
    Inventors: Raymond C. Francis, Xioa-Zhu Zhang, Nicholas A. Troughton