| 简介 |
[Problem] To provide : an adsorbent for a rare earth element, which is capable of easily adsorbing and recovering a rare earth element contained in an aqueous solution at low cost, and which is also capable of selectively adsorbing and recovering a rare earth element that is coexistent with a base metal in an aqueous solution; and a method for recovering a rare earth element. [Solution] In order to solve the above-mentioned problem, this adsorbent for a rare earth element, which is disposed in an aqueous phase and is brought into contact with an aqueous solution containing a rare earth element in order to adsorb and recover the rare earth element, has a configuration that is characterized by being composed of a base and a diglycol amic acid that is introduced into the base. This method for recovering a rare earth element is characterized by : bringing an aqueous solution containing a rare earth element into contact with the above-described adsorbent for a rare earth element so that the rare earth element is adsorbed on the adsorbent for a rare earth element; and having the rare earth element adsorbed on the adsorbent for a rare earth element desorbed by means of an acid of 1 normal or less. |
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