The possibility of recovering rhenium and osmium from sulfurous gases generated by oxidative roasting of commercial molybdenite product was examined. When passing through solid carbon packing at a temperature in the range 288–380°C, higher rhenium and osmium oxides are adsorbed on the surface of the packing to lower oxides, which allows their hydrochemical separation from the reductant with obtaining potassium perrhenate, potassium osmate, and osmium sulfide.
Russian Journal of Applied Chemistry – Springer Journals
Published: Nov 16, 2012
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