Application of Solvent Extraction to the Refining of Precious Metals. II. Purification of Ruthenium

Abstract
A procedure for the purification of ruthenium based on its extraction as the tetroxide by carbon tetrachloride is described. Radiotracer studies have shown that the method provides an excellent quantitative separation of ruthenium from several other elements. It appears that advantages could ensue from the incorporation of a scaled-up version of the procedure in the process for the commercial refining of ruthenium.