| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for directly recovering indium from indium hydroxide scrap of high purity generated at the time of producing an ITO target or the like by electrolytic extraction. SOLUTION: In this method for recovering indium, indium hydroxide scrap is dissolved with sulfuric acid to form an electrolytic solution of indium sulfate, and, after that, indium is directly subjected to electrolytic extraction.</p> |
