Method for eluting antimony adsorbed on chelating resin

Details Method for eluting antimony adsorbed on chelating resin Method for eluting antimony adsorbed on chelating resin

C - Chemistry, Metallurgy

22

B

C22B 3/42 (2006.01) B01J 45/00 (2006.01) C01G 30/00 (2006.01)

Patent

CA 2242010

In a method for recovering antimony from the electrolyte of copper electro-refining process, the antimony is adsorbed on the chelating resin and is then eluted by acid. The eluate is then neutralized to recover antimony. In a conventional method, a large amount of acid and alkali is used. In the inventive eluting method, the antimony concentration in the acidic eluting solution is adjusted to 4g/L or more in the first step and 3g/L or less in the second step.

Dans une méthode pour récupérer l'antimoine à partir de l'électrolyte d'un procédé d'affinage électrolytique du cuivre, l'antimoine est adsorbé sur la résine chélatrice, et élué par un acide. L'éluat est ensuite neutralisé pour récupérer l'antimoine. Dans les méthodes classiques, on emploie une grande quantité d'acide et d'alcali. Dans la méthode d'élution de l'invention, la concentration d'antimoine dans la solution éluante acide est ajustée à 4g/L ou plus dans la première étape, et à 3g/L ou moins dans la seconde étape.

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