| 摘要 |
PROBLEM TO BE SOLVED: To provide a distilling apparatus capable of recovering solvent from waste solvent containing solid components with a high recovery rate, and removing the solid components remaining in the apparatus without stopping heating operation in an evaporator. SOLUTION: The distilling apparatus is provided with the evaporator 10 heating and evaporating waste solvent containing solid components, a waste solvent drawing out line 14 discharging the waste solvent from the evaporator 10, a separation tank 20 receiving the waste solvent from the waste solvent drawing out line 14 for sedimentation of the waste solvent, and a supernatant line returning supernatant of the waste solvent subjected to the sedimentation in the separation tank 20 to the evaporator 10. Thus, the amount of the solvent discarded together with the solid components is reduced to recover the solvent with high recovery rate, without stopping the heating operation in the evaporator 10 when discharging the solid components. COPYRIGHT: (C)2009,JPO&INPIT
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