| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for efficiently separating Ru from a solution containing a platinum group element by oxidation distillation. SOLUTION: The method for separating and collecting Ru from the solution containing the platinum group element includes adjusting the pH of the solution containing one or more platinum group elements among Ru, Pt, Pd, Rh and Ir to 0.5 to 2.5, converting Ru to ruthenium tetroxide through oxidation with the use of sodium bromate as an oxidizing agent, and distilling the solution, wherein sodium bromate is excessively added in an amount of 1 equivalent weight required for oxidizing Ru into ruthenium tetroxide and further an amount required for adjusting the concentration of sodium bromate to 80 g/L or higher. COPYRIGHT: (C)2006,JPO&NCIPI
|
