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

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United States of America Patent

PATENT NO 10844459
APP PUB NO 20180230572A1
SERIAL NO

15751307

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Abstract

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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.

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Patent Owner(s)

  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS); L'UNIVERSITE DE MONTPELLIER I; UNIVERSITE DE CHAMBERY; ECOLE NATIONALE SUPERIEURE DE CHIMIE DE MONTPELLIER; TND; UNIVERSITE DE LORRAINE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arrachart, Guilhem Saint Laurent des Arbres, FR 8 16
Draye, Micheline Chambery, FR 5 18
Legeai, Sophie Metz, FR 1 4
Pellet-Rostaing, Stéphane Villeurbanne, FR 11 12
Thomas, Christian Paris, FR 60 548
Turgis, Raphael Sabran, FR 2 9
Virieux, David Montpellier, FR 4 5

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