| 摘要 |
<p>A process for producing gallium by electrolysis of a gallium-containing solution such as Bayer solution, a gallium extract from gallium-containing waste from semiconductor industry, etc., which comprises bringing the aqueous gallium-containing solution into contact with a solid adsorbent such as η-alumina, activated carbon, etc. under an alkaline condition before hydrolysis to thereby selectively remove an iron component from the solution. This removal of the iron component serves to reduce the content of impurities in the deposited gallium and to improve current efficiency of the electrolysis.</p> |
