Patents by Inventor Ruberlan Gomes Silva

Ruberlan Gomes Silva 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).

  • System and process for selective rare earth extraction with sulphur recovery
    Patent number: 10597754
    Abstract: The application relates to a process for rare earth extraction and thorium removal from monazite or bastnasite bearing ores or ore beneficiation and industrial waste containing a variable amount of rare earth elements as oxides, phosphates, carbonates or sulfates, comprising (i) controlled mixture between sulfuric acid and the material containing rare earth and (ii) water leaching under controlled conditions.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: March 24, 2020
    Assignee: VALE S.A.
    Inventors: Leandro Augusto Viana Teixeira, Ruberlan Gomes Silva
  • SYSTEM AND PROCESS FOR SELECTIVE RARE EARTH EXTRACTION WITH SULPHUR RECOVERY
    Publication number: 20150329940
    Abstract: The application relates to a process for rare earth extraction and thorium removal from monazite or bastnasite bearing ores or ore beneficiation and industrial waste containing a variable amount of rare earth elements as oxides, phosphates, carbonates or sulfates, comprising (i) controlled mixture between sulfuric acid and the material containing rare earth and (ii) water leaching under controlled conditions.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 19, 2015
    Inventors: Leandro Augusto Viana TEIXEIRA, Ruberlan Gomes Silva