| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently recover palladium without being affected by a coexistent copper ion, etc. SOLUTION: The pH of a hydrochloric acid-acidified solution containing a palladium ion stabilized by a tin (II) ion is increased to precipitate palladium along with tin, the precipitate is redissolved and oxidized, and then the palladium is reduced and collected by a metal ion processing agent prepared by depositing an anthrahydroquinone compound on a porous carrier.</p> |
