Title:
有機溶剤の脱水方法および有機溶剤の精製方法
Document Type and Number:
Japanese Patent JP7459865
Kind Code:
B2
Abstract:
The present invention provides a method for dehydrating an organic solvent, while suppressing an increase in the number of fine particles. A method for dehydrating an organic solvent according to the present invention comprises: a step (A) wherein a gas for dehydration is prepared; and a step (B) wherein the gas for dehydration, which has been prepared in the step (A), is brought into contact with an organic solvent. The step (A) comprises: a step (a1) wherein a gas for dehydration is obtained by having a gas, which has a dew point of -30°C or less, permeate through a gas filter; or a step (a2) wherein a gas for dehydration is obtained by adjusting the dew point of a gas, which has been caused to permeate through a gas filter, to -30°C or less.
Inventors:
Keisuke Ota
Mitsuru Sugawara
Mitsuru Sugawara
Application Number:
JP2021508827A
Publication Date:
April 02, 2024
Filing Date:
February 25, 2020
Export Citation:
Assignee:
Nippon Zeon Co., Ltd.
International Classes:
C07C17/38; B01D3/00; B01J19/00; C07C23/08
Domestic Patent References:
| JP52004269B1 | ||||
| JP11192419A | ||||
| JP7332180A | ||||
| JP2005223184A |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Yuta Terashima
Mitsutsugu Sugimura
Yuta Terashima
Previous Patent: Management device, control method and program
Next Patent: Recording system and recording method
Next Patent: Recording system and recording method