JPS55154935A - Recovery of organic acid - Google Patents
Recovery of organic acidInfo
- Publication number
- JPS55154935A JPS55154935A JP6298779A JP6298779A JPS55154935A JP S55154935 A JPS55154935 A JP S55154935A JP 6298779 A JP6298779 A JP 6298779A JP 6298779 A JP6298779 A JP 6298779A JP S55154935 A JPS55154935 A JP S55154935A
- Authority
- JP
- Japan
- Prior art keywords
- organic acid
- organic
- recovered
- solvent
- phosphoric acid
- 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
Abstract
PURPOSE: To recover an organic acid in a reusable state from an aqueous solution containing the organic acid at a relatively low concentration, by extracting the organic acid with a petroleum hydrocarbon solvent containing an amine and a phosphoric acid ester, and removing the solvent by heating, etc.
CONSTITUTION: An aqueous solution of an organic acid is made to contact with an organic solvent containing an extractant selected from a group of primary to quaternary amines and a group of phosphoric acid esters to extract the organic acid. The organic acid is recovered an the organic solvent is regenerated either by heating or distilling the solution or by contacting the solution with a liquid containing Na, Mg, NH3, etc. The recovered organic acid is mixed with H2SO4 or HCl, and made to contact with a solvent containing a phosphoric acid ester to extract the addition product of the organic acid and the phosphoric acid ester to the organic phase. The organic acid can be recovered from the addition product by distillation. The above process is suitable for the treatment of waste water containing about 50W0.1g/l of the organic acid.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6298779A JPS55154935A (en) | 1979-05-21 | 1979-05-21 | Recovery of organic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6298779A JPS55154935A (en) | 1979-05-21 | 1979-05-21 | Recovery of organic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55154935A true JPS55154935A (en) | 1980-12-02 |
JPS6221561B2 JPS6221561B2 (en) | 1987-05-13 |
Family
ID=13216217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6298779A Granted JPS55154935A (en) | 1979-05-21 | 1979-05-21 | Recovery of organic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55154935A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4353784A (en) * | 1981-09-21 | 1982-10-12 | Daicel Chemical Industries, Ltd. | Method of recovery of acetic acid |
WO1984000364A1 (en) * | 1982-07-06 | 1984-02-02 | Daicel Chem | Process for recovering acetic acid |
JP2011148740A (en) * | 2010-01-22 | 2011-08-04 | Univ Of Tokyo | Method for recovering organic acid in 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 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0356982U (en) * | 1989-10-07 | 1991-05-31 |
-
1979
- 1979-05-21 JP JP6298779A patent/JPS55154935A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4353784A (en) * | 1981-09-21 | 1982-10-12 | Daicel Chemical Industries, Ltd. | Method of recovery of acetic acid |
WO1984000364A1 (en) * | 1982-07-06 | 1984-02-02 | Daicel Chem | Process for recovering acetic acid |
EP0112926A1 (en) * | 1982-07-06 | 1984-07-11 | Daicel Chemical Industries, Ltd. | Process for recovering acetic acid |
JP2011148740A (en) * | 2010-01-22 | 2011-08-04 | Univ Of Tokyo | Method for recovering organic acid in 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 |
---|---|
JPS6221561B2 (en) | 1987-05-13 |
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