Purification of metals

G - Physics – 21 – C

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G21C 19/46 (2006.01) C01G 39/00 (2006.01) G21F 9/12 (2006.01)

Patent

CA 2699284

A solid composition comprises: MnO2; and - a compound represented by the general formula (I) wherein: R is a polymer; each Y is independent]y a hydrogen or a negative charge; Z is either hydrogen or is not present; each n is independently 1, 2, 3, 4, 5 or 6; wherein the MnO2 is bound to the compound of formula (I) so as to coat the surface thereof. Such a composition may be used for the separation of polyvalent metal species, such as Mo, from one or more accompanying impurities.

La présente invention concerne une composition solide comportant: MnO2; et un composé représenté par la formule générale (I), dans laquelle : R est un polymère ; chaque Y est indépendamment un atome d'hydrogène ou une charge négative ; Z est soit hydrogène ou n'est pas présent ; chaque n est indépendamment 1, 2, 3, 4, 5 ou 6; MnO2 est lié au composé de formule (I) en vue de revêtir sa surface. Une telle composition peut être utilisée pour la séparation d'espèces métalliques polyvalentes, tel que Mo, d'une ou de plusieurs impuretés associées.

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