| abstract |
A method for separating and recovering a large amount of rare earth having a small ionic radius from an aqueous solution in which a plurality of rare earths are mixed. In a flocculant that separates and collects a specific rare earth from an aqueous solution in which a plurality of rare earths are mixed, the flocculant has a water-soluble polymer having an acidic group, and a water-soluble water-soluble main chain having an amino group. A flocculant for separating and recovering rare earths, comprising a conducting polymer, a rare earth separation and recovery method, and a rare earth separation and recovery device. [Selection] Figure 1 |