| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To recover metal ions from a metal dissolution liquid having low metal ion concentration, and to recycle the metal dissolution liquid. <P>SOLUTION: The inside of an electrolytic cell 1 into which a metal dissolution liquid comprising metal ions of≤0.2 mol/L is introduced is provided with a copper tube 2 for a cathode. A tube rod 3 for an anode is arranged at the central part of the copper tube 2 so as to be inserted therein. An electric current is applied to the copper tube 2 and the tube rod 3 in the meanwhile when the metal dissolution liquid is made to flow to the axial direction of the copper tube 2 while swirling the same between the copper tube 2 and the tube rod 3. The metal ions in the metal dissolution liquid are electrodeposited inside the copper tube 2, and are recovered. <P>COPYRIGHT: (C)2004,JPO</p> |
