Recovery of purified volatile metal such as lithium from...

Details Recovery of purified volatile metal such as lithium from... Recovery of purified volatile metal such as lithium from...

C - Chemistry, Metallurgy

22

B

C22B 26/12 (2006.01) C22B 9/04 (2006.01) C22B 21/06 (2006.01) C22B 26/22 (2006.01)

Patent

CA 2426542

The present invention is concerned with a method for extracting selectively a metal from a metal mixture in the gaseous phase. The method comprises heating the metal mixture to vaporize the metal; condensing the metal contaminants present in the vapour; reacting any contaminants remaining in the vapour with a reagent to precipitate the remaining contaminants, and collecting the purified metal. In particula, the invention concerns the extraction of purified lithium from magnesium-containing metal mixtures or from metal mixtures comprising spodumene.

L'invention concerne un procédé permettant d'extraire sélectivement un métal d'un mélange de métaux en phase gazeuse. Ce procédé consiste à chauffer le mélange de métaux afin d'évaporer les métaux, à condenser les contaminants métalliques présents dans la vapeur, à faire réagir les éventuels contaminants résiduels dans la vapeur avec un réactif afin de précipiter ces contaminants résiduels, et à récupérer le métal purifié.

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