To provide a solvent recovery unit and a solvent recovery method for obtaining a liquid recovering device which prevents the blockage of a distillation column by resin entering a gap of a filler, recovers a solvent that generates acids when hydrolyzed at high recovery rate, when recovering water using the distillation column from a processed liquid containing water, the solvent containing a higher boiling point than water, and the resin.
A solvent recovery unit 30 includes: a distillation column 31 that distills an acid-containing solvent, wherein the acid-containing solvent contains a solvent that generates acids when hydrolyzed and the acids generated by the hydrolysis of the solvent to recover the solvent; a distilling pump 32 that is connected from a bottom part 31b of the distillation column 31 through a distilling pipe 113; and a neutralizing means 33 that is disposed downstream of the distilling pump 32 and neutralizes the acids extracted from the distillation column 31.
HAYAKAWA NAOKI
OISHI ICHIRO
| JPS6388167A | 1988-04-19 | |||
| JP2005060241A | 2005-03-10 | |||
| JP2009061396A | 2009-03-26 | |||
| JP2005288329A | 2005-10-20 | |||
| JPS61125485A | 1986-06-13 | |||
| JP2007238552A | 2007-09-20 | |||
| JPS6388167A | 1988-04-19 | |||
| JP2005060241A | 2005-03-10 | |||
| JP2009061396A | 2009-03-26 | |||
| JP2005288329A | 2005-10-20 | |||
| JPS61125485A | 1986-06-13 |
Tadashi Takahashi
Suzuki Mitsuyoshi
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