Title:
PURIFICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/255372
Kind Code:
A1
Abstract:
The present invention provides a method for stably obtaining a product. The present invention provides a purification apparatus for compounds which comprises a tank used in the purification apparatus and a hydraulic washing column, said purification apparatus being characterized in that: the tank is a crystallization tank that generates a slurry containing crystals of the compound and/or a maturation tank that is capable of holding the crystals of the compound in a suspended state in the tank and is provided with an agitator having an agitation shaft and a bearing part; and the purification apparatus further comprises a line for extracting, from the tank, the slurry containing the crystals of the compound to be supplied to the hydraulic washing column, and a line for flowing, between the agitation shaft and the bearing part in the tank, a mother liquid derived from the slurry containing the crystals of the compound to be supplied to the hydraulic washing column and/or a melt in which the crystals are melt.
Inventors:
FUKUMOTO TOSHIYA (JP)
MUKAE MASASHI (JP)
MATSUDA TAKAYUKI (JP)
MUKAE MASASHI (JP)
MATSUDA TAKAYUKI (JP)
Application Number:
PCT/JP2022/022160
Publication Date:
December 08, 2022
Filing Date:
May 31, 2022
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
B01D9/02; C07C51/43; C07C57/055
Domestic Patent References:
| WO1998037938A1 | 1998-09-03 | |||
| WO2010032665A1 | 2010-03-25 |
Foreign References:
| JP2004315456A | 2004-11-11 | |||
| JP2007182437A | 2007-07-19 | |||
| JP2007182437A | 2007-07-19 | |||
| JP2005028214A | 2005-02-03 | |||
| JP2012140471A | 2012-07-26 | |||
| JP2002204937A | 2002-07-23 | |||
| JP2005509009A | 2005-04-07 | |||
| EP1469926A1 | 2004-10-27 | |||
| JP2005509010A | 2005-04-07 |
Attorney, Agent or Firm:
WISEPLUS IP FIRM (JP)
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