Patents by Inventor Reed ZHAO

Reed ZHAO 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).

  • Recirculation and disposal of aqueous catalyst solutions in amine catalytic processes
    Patent number: 9816703
    Abstract: The present invention relates to the oxidative combustion of amine-containing wastewaters, especially in a process for preparing methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for preparation of methacrylic acid, methyl methacrylate, or else of active ingredients, odorants or flavorings. More particularly, the present invention relates to an oxidative combustion of the amine-containing wastewaters with only low nitrogen oxide formation.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: November 14, 2017
    Assignee: EVONIK ROEHM GmbH
    Inventors: Steffen Krill, Torsten Balduf, Rudolf Burghardt, Gerhard Koelbl, Reed Zhao
  • RECIRCULATION AND DISPOSAL OF AQUEOUS CATALYST SOLUTIONS IN AMINE CATALYTIC PROCESSES
    Publication number: 20160138804
    Abstract: The present invention relates to the oxidative combustion of amine-containing wastewaters, especially in a process for preparing methacrolein. Methacrolein is used in chemical synthesis particularly as an intermediate for preparation of methacrylic acid, methyl methacrylate, or else of active ingredients, odorants or flavorings. More particularly, the present invention relates to an oxidative combustion of the amine-containing wastewaters with only low nitrogen oxide formation.
    Type: Application
    Filed: July 15, 2014
    Publication date: May 19, 2016
    Applicant: EVONIK ROEHM GmbH
    Inventors: Steffen KRILL, Torsten BALDUF, Rudolf BURGHARDT, Gerhard KOELBL, Reed ZHAO