| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently recover metal as powdery material in a short time even from solution dissolving the metal to be recovered in low concn. by utilizing replacing reaction of the metal and to continuously recover the metal without stopping the replacing reaction, in a method and a device for recovering the metal from the solution dissolving noble metal, etc. SOLUTION: This recovering device is constituted with a packing tower 1, a stirring machine 2 arranged in the packing tower 1 and a recovered metal receiving vessel 4 arranged below the bottom surface 3 of this packing tower 1, and the solution A dissolving the metal to be recovered is passed through and brought into contact with metallic grain 9 having baser than the metal to be recovered or grain group 8 mixing the base metallic grain with electric conductive grain 10. At the time of recovering by depositing the metal to be recovered on the surface of the grain group 8, the metal to be recovered, deposited on the surface of the grain group 8 is dropped from the surface by stirring the grain group 8 and mutually rubbing and recovered and also, the surface of the grain group 8 is always held to active.</p> |
