Patents by Inventor Raphael Turgis

Raphael Turgis 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 extracting and recovering tantalum present in an acid aqueous phase by means of an ionic liquid, and use of such an ionic liquid for extracting the tantalum from an acid aqueous phase
    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
  • PROCESS FOR EXTRACTING AND RECOVERING TANTALUM PRESENT IN AN ACID AQUEOUS PHASE BY MEANS OF AN IONIC LIQUID, AND USE OF SUCH AN IONIC LIQUID FOR EXTRACTING THE TANTALUM FROM AN ACID AQUEOUS PHASE
    Publication number: 20180230572
    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: Application
    Filed: August 10, 2016
    Publication date: August 16, 2018
    Inventors: Raphael TURGIS, Guilhem ARRACHART, Stéphane PELLET-ROSTAING, Micheline DRAYE, Sophie LEGEAI, David VIRIEUX, Christian THOMAS
  • Bifunctional compounds useful as ligands of uranium (VI), methods of synthesising same and uses thereof
    Patent number: 9441285
    Abstract: New compounds which meet general formula (I): where: m=0, 1 or 2; R1 and R2=a C6 to C12, straight-chain or branched, hydrocarbon group; R3=H, a C1 to C12, straight-chain or branched, hydrocarbon group, optionally comprising one or more heteroatoms; a C3 to C8 monocyclic hydrocarbon group, optionally comprising one or more heteroatoms, or a monocyclic (hetero)aryl group; or else R2 and R3 together form a —(CH2)n— group where n=1 to 4; R4=a C2 to C8, straight-chain or branched, hydrocarbon group, or a monocyclic aromatic group; R5=H, or a C1 to C12, straight-chain or branched, hydrocarbon group.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: September 13, 2016
    Assignee: Areva Mines
    Inventors: Guilhem Arrachart, Nicolas Aychet, Gilles Bernier, Fabien Burdet, Antoine Leydier, Manuel Miguirditchian, Stephane Pellet-Rostaing, Gabriel Plancque, Raphael Turgis, Elisabeth Zekri
  • BIFUNCTIONAL COMPOUNDS USEFUL AS LIGANDS OF URANIUM (VI), METHODS OF SYNTHESISING SAME AND USES THEREOF
    Publication number: 20150133688
    Abstract: New compounds which meet general formula (I): where: m=0, 1 or 2; R1 and R2=a C6 to C12, straight-chain or branched, hydrocarbon group; R3=H, a C1 to C12, straight-chain or branched, hydrocarbon group, optionally comprising one or more heteroatoms; a C3 to C8 monocyclic hydrocarbon group, optionally comprising one or more heteroatoms, or a monocyclic (hetero)aryl group; or else R2 and R3 together form a —(CH2)n— group where n=1 to 4; R4=a C2 to C8, straight-chain or branched, hydrocarbon group, or a monocyclic aromatic group; R5=H, or a C1 to C12, straight-chain or branched, hydrocarbon group.
    Type: Application
    Filed: May 6, 2013
    Publication date: May 14, 2015
    Applicant: AREVA Mines
    Inventors: Guilhem Arrachart, Nicolas Aychet, Gilles Bernier, Fabien Burdet, Antoine Leydier, Manuel Miguirditchian, Stephane Pellet-Rostaing, Gabriel Plancque, Raphael Turgis, Elisabeth Zekri