Patents Assigned to TND
  • Patent number: 10844459
    Abstract: A method for extracting the tantalum from an acid aqueous phase A1 comprising at least one step comprising the bringing of the aqueous phase A1 into contact with a phase A2 not miscible with water, and then the separation of the aqueous phase A1 from the phase A2, the phase A2 consisting of one ionic liquid or a mixture of ionic liquids as an extractant. A method for recovering the tantalum that implements this extraction method and to a use of an ionic liquid or of a mixture of ionic liquids as an extractant, in order to extract the tantalum from such an aqueous phase A1.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 24, 2020
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE MONTPELLIER, UNIVERSITE DE CHAMBERY, ECOLE NATIONALE SUPERIEURE DE CHIMIE DE MONTPELLIER, TND, UNIVERSITE DE LORRAINE
    Inventors: Raphael Turgis, Guilhem Arrachart, Stéphane Pellet-Rostaing, Micheline Draye, Sophie Legeai, David Virieux, Christian Thomas