JPS5724324A - Separating method of organic acid - Google Patents
Separating method of organic acidInfo
- Publication number
- JPS5724324A JPS5724324A JP9684980A JP9684980A JPS5724324A JP S5724324 A JPS5724324 A JP S5724324A JP 9684980 A JP9684980 A JP 9684980A JP 9684980 A JP9684980 A JP 9684980A JP S5724324 A JPS5724324 A JP S5724324A
- Authority
- JP
- Japan
- Prior art keywords
- formic acid
- organic solvent
- acid
- amine
- aqueous solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To remove formic acid and regenerate an organic solvent, by bringing an aqueous solution containing formic acid into contact with the organic solvent containing an extracting agent selected from an amine and a phosphoric ester diluted with kerosine, etc., extracting the formic acid, and bringing the resultant extract into contact with sulfuric acid.
CONSTITUTION: An aqueous solution containing formic acid is brought into contact with an organic solvent obtained by diluting an extracting agent selected from an amine selected from a primary amine to a quaternary amine and a phosphoric ester with a petroleum hydrocarbon diluting agent to extract the formic acid selectively. The organic solvent extracted with the formic acid is then brought into contact with sulfuric acid or distilled under heating to strip the formic acid, regenerate the organic solvent simultaneously and seperate the organic acid. An aqueous solution containing the formic acid and acetic acid is extracted with an amine extracting agent to remove the acetic acid, and the same operations as described above are carried out to regenerate the organic solvent and extract the acetic acid from the remaining aqueous solution with the phosphoric ester extracting agent. Thus, the formic acid and the acetic acid are separated and recovered.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55096849A JPS585895B2 (en) | 1980-07-17 | 1980-07-17 | Separation method of organic acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55096849A JPS585895B2 (en) | 1980-07-17 | 1980-07-17 | Separation method of organic acids |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5724324A true JPS5724324A (en) | 1982-02-08 |
JPS585895B2 JPS585895B2 (en) | 1983-02-02 |
Family
ID=14175939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55096849A Expired JPS585895B2 (en) | 1980-07-17 | 1980-07-17 | Separation method of organic acids |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS585895B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0112926A1 (en) * | 1982-07-06 | 1984-07-11 | Daicel Chemical Industries, Ltd. | Process for recovering acetic acid |
JP2003520832A (en) * | 2000-01-24 | 2003-07-08 | ビーエーエスエフ アクチェンゲゼルシャフト | Purification of wastewater in the case of formic anhydride production. |
CN104418723A (en) * | 2013-08-20 | 2015-03-18 | 黄冈师范学院 | Recycle method and recycle apparatus of dilute formic acid from industrial waste water |
WO2022239847A1 (en) * | 2021-05-14 | 2022-11-17 | リファインホールディングス株式会社 | Method for collecting carboxylic acid |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5152368A (en) * | 1974-11-01 | 1976-05-08 | Nippon Solex Kk | YOBAICHUSHUTSUNYORIHAISANYORIKOSAN JUKISANTOOKAISHUSURU HOHO |
JPS568341A (en) * | 1979-04-11 | 1981-01-28 | Basf Ag | Manufacture of noowater or almost noowater formic acid |
-
1980
- 1980-07-17 JP JP55096849A patent/JPS585895B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5152368A (en) * | 1974-11-01 | 1976-05-08 | Nippon Solex Kk | YOBAICHUSHUTSUNYORIHAISANYORIKOSAN JUKISANTOOKAISHUSURU HOHO |
JPS568341A (en) * | 1979-04-11 | 1981-01-28 | Basf Ag | Manufacture of noowater or almost noowater formic acid |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0112926A1 (en) * | 1982-07-06 | 1984-07-11 | Daicel Chemical Industries, Ltd. | Process for recovering acetic acid |
US4883912A (en) * | 1982-07-06 | 1989-11-28 | Daicel Chemical Industries, Ltd. | Process for the recovery of acetic acid |
JP2003520832A (en) * | 2000-01-24 | 2003-07-08 | ビーエーエスエフ アクチェンゲゼルシャフト | Purification of wastewater in the case of formic anhydride production. |
CN104418723A (en) * | 2013-08-20 | 2015-03-18 | 黄冈师范学院 | Recycle method and recycle apparatus of dilute formic acid from industrial waste water |
WO2022239847A1 (en) * | 2021-05-14 | 2022-11-17 | リファインホールディングス株式会社 | Method for collecting carboxylic acid |
Also Published As
Publication number | Publication date |
---|---|
JPS585895B2 (en) | 1983-02-02 |
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