ギ酸回収方法 - NITTO DENKO CORPORATION

Title:

ギ酸回収方法

Document Type and Number:

Japanese Patent JP7372069

Kind Code:

B2

Abstract:

To provide a formic acid recovery method that concentrates a basic solution containing a formic acid ion with high efficiency, and can collect formic acid in high yields.SOLUTION: This invention relates to a formic acid recovery method including a first step of bringing a basic solution containing a formic acid ion into contact with a cation exchange resin to obtain an acid solution containing a formic acid ion, and a second step of bringing the acid solution into contact with an extraction agent containing a specific amine to obtain an extract, from which formic acid is recovered.SELECTED DRAWING: None

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Inventors:

Hirokazu Matsuda
Satomi Goto
Shuji Fujiwara

Application Number:

JP2019138664A

Publication Date:

October 31, 2023

Filing Date:

July 29, 2019

Export Citation:

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Assignee:

NITTO DENKO CORPORATION

International Classes:

C07C51/48; B01D11/04; B01J39/05; B01J47/018; B01J47/022; B01J47/10; C01B3/22; C07C53/02

Domestic Patent References:

JP61043133A
JP2011148740A
JP2005072182A
JP2004346129A

Attorney, Agent or Firm:

Patent Attorney Corporation Eiko Office

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