C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 11/00 (2006.01) B01D 15/08 (2006.01) B01D 15/34 (2006.01) B01J 20/291 (2006.01) C01G 55/00 (2006.01) C22B 3/24 (2006.01) C22B 3/42 (2006.01) C22B 61/00 (2006.01) G01N 30/02 (2006.01)
Patent
CA 2425888
A chromatographic separation method separates ruthenium from other platinum group metals in a feed solution, by converting the Ru to a nitrosyl complex, retaining the nitrosyl complex temporarily on the chromatography column and subsequently eluting Ru, for example using an oxidising or reducing eluent. Fig 1 shows the elution profile obtained from a mixture of Rh chlorocomplexes (Peak 1) and Ru nitrosyl species (Peak 2).
L'invention concerne un procédé de séparation chromatographique qui vise à séparer le ruthénium d'autres métaux du groupe platine dans une solution de charge. Ce procédé comporte les étapes consistant à transformer Ru en un complexe de nitrosyle, à retenir temporairement le complexe de nitrosyle sur la colonne de chromatographie et à éluer ultérieurement Ru, par exemple à l'aide d'un éluant oxydant ou réducteur. La fig. 1 montre le profil d'élution obtenu à partir d'un mélange de chlorocomplexes de Rh (pic 1) et d'espèces de nitrosyle du Ru (pic 2).
Anglo American Platinum Corporation Limited
Ridout & Maybee Llp
LandOfFree
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