Patents by Inventor Tat'yana Andreevna SEDNEVA

Tat'yana Andreevna SEDNEVA 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).

  • Recycling of nuclear liquid waste with boron control
    Patent number: 10822241
    Abstract: The invention relates to the complex processing of a nuclear power plant's NPP's liquid, boron-containing waste with a complex composition, being generated during the operation of NPPs, including of ones VVER-type, and can be used to isolate boric and nitric acids and hydroxides of sodium and potassium for their reuse in the NPP process cycle. The invention allows to obtain crystalline boric acid and highly concentrated solutions of nitric acid and hydroxides of sodium and potassium, suitable for reuse in the NPP process cycle and for general industrial use. Conducting electrodialysis at low values of current and voltage provides a reduction of the method's energy intensity. The involvement of all major components of waste mother liquors into the processing reduces the amount of stored and disposed hazardous waste.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 3, 2020
    Assignees: JOINT STOCK COMPANY “ROSENERGOATOM”, JOINT STOCK COMPANY “SCIENCE AND INNOVATIONS”
    Inventors: Vladimir Ivanovich Ivanenko, Tat'yana Andreevna Sedneva, Efroim Pinkhusovich Lokshin, Roman Ivanovich Korneikov
  • Recycling of Nuclear Liquid Waste with Boron Control
    Publication number: 20200024146
    Abstract: The invention relates to the complex processing of a nuclear power plant's NPP's liquid, boron-containing waste with a complex composition, being generated during the operation of NPPs, including of ones VVER-type, and can be used to isolate boric and nitric acids and hydroxides of sodium and potassium for their reuse in the NPP process cycle. The invention allows to obtain crystalline boric acid and highly concentrated solutions of nitric acid and hydroxides of sodium and potassium, suitable for reuse in the NPP process cycle and for general industrial use. Conducting electrodialysis at low values of current and voltage provides a reduction of the method's energy intensity. The involvement of all major components of waste mother liquors into the processing reduces the amount of stored and disposed hazardous waste.
    Type: Application
    Filed: March 22, 2018
    Publication date: January 23, 2020
    Inventors: Vladimir Ivanovich IVANENKO, Tat'yana Andreevna SEDNEVA, Efroim Pinkhusovich LOKSHIN, Roman Ivanovich KORNEIKOV