Method for separating minor actinides and method for producing inorganic adsorbents

摘要

PROBLEM TO BE SOLVED: To provide a method for separating a minor actinide capable of reducing the amount of waste liquid generated when the minor actinide is separated from a radioactive solution containing the minor actinide and the lanthanide. SOLUTION: Of a radioactive solution containing a minor actinide and a lanthanoid, the lantanoid is adsorbed by a step of adsorbing the lanthanoid to an adsorbent that can be adsorbed by a difference in ion radius and a step of adsorbing the lanthanoid to the adsorbent. A method for separating a minor actinide, comprising a step of separating the adsorbent and the radioactive solution and recovering the solution containing the minor actinide. [Selection diagram] Fig. 1