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Title:
METHOD FOR EXTRACTING EXTRACTION OBJECT AND LIQUID-LIQUID EXTRACTION COLUMN
Document Type and Number:
WIPO Patent Application WO/2021/049459
Kind Code:
A1
Abstract:
The present invention provides a means which is capable of further improving the contact efficiency. The present invention is a method for extracting an extraction object with use of a liquid-liquid extraction column that has an inert gas supply device on the column bottom side, wherein an extraction solvent and a liquid containing the extraction object are brought into contact with each other, while supplying an inert gas thereto from the inert gas supply device, so that a component in the liquid containing the extraction object is transferred into the extraction solvent.

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Inventors:
WATANABE AKIMASA (JP)
SHIKATA TOMOYUKI (JP)
Application Number:
PCT/JP2020/033799
Publication Date:
March 18, 2021
Filing Date:
September 07, 2020
Export Citation:
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Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
B01D11/04; C07C29/86; C07C31/02
Foreign References:
US4786414A1988-11-22
JPS5410276A1979-01-25
JPS5490069A1979-07-17
JPH0780283A1995-03-28
JPS5138704B11976-10-23
JPS4834571B11973-10-22
JPH0334945A1991-02-14
JPS61186337A1986-08-20
JP2001261816A2001-09-26
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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