Chromatographic method of separating ruthenium from platinum...

Details Chromatographic method of separating ruthenium from platinum... Chromatographic method of separating ruthenium from platinum...

2007-01-16

2007-01-16

King, Roy (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

Reexamination Certificate

active

10415705

ABSTRACT:
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.1shows the elution profile obtained from a mixture of Rh chloro-complexes (Peak 1) and Ru nitrosyl species (Peak 2).

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