Patents by Inventor Hooghe Lieven

Hooghe Lieven 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).

  • Process for manufacturing a purified aqueous hydrogen peroxide solution
    Patent number: 10647576
    Abstract: A process includes preparing a crude aqueous hydrogen peroxide solution by auto-oxidation of at least one alkylanthraquinone in a working solution that includes at least one organic solvent and the at least one alkylanthraquinone; and washing the crude aqueous hydrogen peroxide solution with a mixture of at least one organic solvent and an organophosphorous chelating agent to create a purified aqueous hydrogen peroxide solution having less than 100 ppb Cr; wherein the organic solvent used for the washing is not part of the working solution and is not recycled into it.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 12, 2020
    Assignee: Solvay SA
    Inventors: Juan-Teva Carlier, Pierre Dournel, Henk Venbrux, Hooghe Lieven
  • PROCESS FOR MANUFACTURING A PURIFIED AQUEOUS HYDROGEN PEROXIDE SOLUTION
    Publication number: 20180370798
    Abstract: A process includes preparing a crude aqueous hydrogen peroxide solution by auto-oxidation of at least one alkylanthraquinone in a working solution that includes at least one organic solvent and the at least one alkylanthraquinone; and washing the crude aqueous hydrogen peroxide solution with a mixture of at least one organic solvent and an organophosphorous chelating agent to create a purified aqueous hydrogen peroxide solution having less than 100 ppb Cr; wherein the organic solvent used for the washing is not part of the working solution and is not recycled into it.
    Type: Application
    Filed: June 29, 2018
    Publication date: December 27, 2018
    Applicant: Solvay SA
    Inventors: Juan-Teva Carlier, Pierre Dournel, Henk Venbrux, Hooghe Lieven
  • Process for manufacturing a purified aqueous hydrogen peroxide solution
    Patent number: 10099924
    Abstract: Process for manufacturing a purified aqueous hydrogen peroxide solution, in which a crude aqueous hydrogen peroxide solution is subjected to a washing operation with at least one organic solvent, and wherein an organophosphorus chelating agent is added to the organic solvent.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: October 16, 2018
    Assignee: Solvay SA
    Inventors: Juan-Teva Carlier, Pierre Dournel, Henk Venbrux, Hooghe Lieven