| 摘要 |
<p>PURPOSE:To deposit and recover copper selectively by performing electrolysis while ejecting air bubbles near a cathode in liquid contg. copper and arsenic. CONSTITUTION:Air bubble ejection is carried out preferably right under the cathode, but it is equally well to do this properly near the same. Bubbling is performed suitably by a known method. The gas to be blown may be air, but the use of other inert gas such as nitrogen is equally well. Thereby, electrolytic extracting limit of copper is considerably improved and extraction of about >=99% copper component is made possible.</p> |
