| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for refining a gallium-containing solution capable of readily and rapidly removing impurities from the gallium-containing solution containing at least one kind of copper, iron, lead, tin, and indium, as impurities. <P>SOLUTION: The free NaOH concentration in an alkaline solution containing at least one kind of copper, iron, lead, tin, and indium, as impurities, and gallium is adjusted to≤150 g/L and after the solution is adjusted to a temperature below 40°C, the solution is brought into contact with a mixture composed of metallic zinc like zinc powder and active carbon and is used as a gallium electrolyte for recovering gallium metal by electrowinning. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
