Metal compound removal

Details Metal compound removal Metal compound removal

C - Chemistry, Metallurgy

22

B

C22B 11/00 (2006.01) C22B 3/06 (2006.01) C22B 3/44 (2006.01) C22B 7/00 (2006.01)

Patent

CA 2491894

The present invention relates to a process for separating at least one metal compound and/or a component thereof from a mixture, said process comprising contacting the said mixture with a heteropoly acid or heteropoly acid anion, thereby producing a precipitate comprising the heteropoly acid or heteropoly acid anion and the metal compound and/or a component thereof. The present invention further relates to a process for the purification of a mixture containing at least one metal compound, said process comprising contacting the said mixture with a heteropoly acid or heteropoly acid anion, thereby producing a precipitate that is substantially insoluble in the said reaction mixture and recovering the reaction mixture.

La présente invention concerne un procédé permettant d'extraire d'un mélange au moins un composé métal et/ou un composant de ce composé. A cet effet, on prend le mélange que l'on met en contact avec un hétéropoly-acide ou un anion d'hétéropoly-acide, ce qui donne un précipité comprenant l'hétéropoly-acide ou l'anion d'hétéropoly-acide et le composé métal et/ou l'un de ses composants. L'invention concerne également un procédé permettant de purifier un mélange contenant au moins un composé métal, ce procédé comportant une opération par laquelle on prend le mélange et on le met en contact avec un hétéropoly-acide ou un anion d'hétéropoly-acide, ce qui donne un précipité sensiblement insoluble dans le mélange de réaction, à la suite de quoi on récupère le mélange de réaction.

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