| abstract |
Provided is a separation and recovery device for continuously separating and recovering a non-hydrolyzable polymer B and a hydrolyzing component a of a hydrolyzable polymer A from a resin mixture that includes a resin containing a hydrolyzable polymer and a resin containing a non-hydrolyzable polymer. The separation and recovery device includes: a crushing unit that crushes the resin mixture; a melting and discharging unit that melts the crushed material obtained by the crushing unit to form a fluid and then discharges the fluid at high pressure; and a hydrothermal reaction treatment unit that continuously carries out a hydrothermal reaction treatment of the fluid discharged from the melting and discharging unit. In the hydrothermal reaction treatment unit, the non-hydrolyzable polymer B is separated as a result of the hydrolyzing component a, which is obtained by hydrolyzing the hydrolyzable polymer A, being dissolved in water that has permeated a sintered alloy barrier membrane, and then transferred. |