C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/38 (2006.01) C22B 3/26 (2006.01) C22B 23/00 (2006.01)
Patent
CA 2581106
A process for separating one or more metal ions forming a first group of metal ions such as copper, zinc and ferric ions, from one or more other metal ions forming a second group of metal ions such as cobalt and nickel, comprising: contacting an aqueous solution comprising said first and second groups of metal ions with an organic solution comprising a phosphinic acid and a hydroxyoxime to extract one of said groups of metal ions into the organic phase; and separating the organic and aqueous phases.
L'invention concerne un procédé permettant de séparer un ou plusieurs ions métalliques formant un premier groupe d'ions métalliques tels que les ions cuivre, zinc et ferriques, d'un ou de plusieurs ions métalliques formant un second groupe d'ions métalliques tels que les ions cobalt et nickel. Le procédé comporte les étapes consistant à: mettre en contact une solution aqueuse comprenant les ions métalliques desdits premier et second groupes avec une solution organique comprenant un acide phosphinique et une hydroxyoxime afin d'extraire lesdits groupes d'ions métalliques dans la phase organique; et séparer les phases organique et aqueuse.
Cheng Chu Yong
Urbani Mark Daniel
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Commonwealth Scientific And Industrial Research Organisation
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