| 摘要 |
The present invention relates to a method for manufacturing a capsule with which the selectivity in relation to specific metals and valuable metal recovery performance are improved by including functional substances on the surface or in the inside; and a capsule for an absorbent which is obtained by the method. The capsule for an absorbent of the present invention is capable of including required functional substances in the inside the capsule unlike with conventional beads, and the capsule is capable of maintaining its form while storing the substances for a long period of time. According to the present invention, by providing a high-molecular capsule in which functional substances such as a metal extraction agent are granulated, the metal recovery performance is improved and specific metals are selectively recovered. The method according to the present invention allows a solid/liquid separation for a valuable metal recovery, and thus the process can be simpler than a conventional hydrometallurgy mode, and since there is no second production of sludge, the process can be carried out in the more environmentally friendly manner. |
