Patents by Inventor Rinat Mirvaliev

Rinat Mirvaliev 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).

  • Separation method of rare earth element and iron and rare earth element-containing slag
    Patent number: 11279987
    Abstract: The present invention provides a separation method of a rare earth element and iron including: forming alkali silicate slag incorporating a rare earth element, by melting a rare earth-iron-containing material together with an alkali silicate flux in a metallic silicon melt or an iron-silicon alloy melt; and separating rare earth-containing slag from an iron-silicon alloy, in which volatilization of alkaline components contained in the flux is suppressed by performing heating and melting under an oxidizing atmosphere, and the rare earth-containing slag having a SiO2/Na2O molar ratio of 2.1 or less is formed.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: March 22, 2022
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Chompunoot Wiraseranee, Rinat Mirvaliev, Satoshi Okada
  • SEPARATION METHOD OF RARE EARTH ELEMENT AND IRON AND RARE EARTH ELEMENT-CONTAINING SLAG
    Publication number: 20190017147
    Abstract: The present invention provides a separation method of a rare earth element and iron including: forming alkali silicate slag incorporating a rare earth element, by melting a rare earth-iron-containing material together with an alkali silicate flux in a metallic silicon melt or an iron-silicon alloy melt; and separating rare earth-containing slag from an iron-silicon alloy, in which volatilization of alkaline components contained in the flux is suppressed by performing heating and melting under an oxidizing atmosphere, and the rare earth-containing slag having a SiO2/Na2O molar ratio of 2.1 or less is formed.
    Type: Application
    Filed: January 4, 2017
    Publication date: January 17, 2019
    Inventors: Chompunoot Wiraseranee, Rinat Mirvaliev, Satoshi Okada