JPS57197240A - Recovering method of acetic acid - Google Patents
Recovering method of acetic acidInfo
- Publication number
- JPS57197240A JPS57197240A JP8218181A JP8218181A JPS57197240A JP S57197240 A JPS57197240 A JP S57197240A JP 8218181 A JP8218181 A JP 8218181A JP 8218181 A JP8218181 A JP 8218181A JP S57197240 A JPS57197240 A JP S57197240A
- Authority
- JP
- Japan
- Prior art keywords
- acetic acid
- solvent
- boiling point
- mixed solvent
- extract
- 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 recover acetic acid with a little energy advantageously, extracting the acetic acid from an aqueous solution thereof with a mixed solvent in which the distribution coefficient of the acetic acid, the selectivity of the acetic acid for water and the boiling point thereof are combined under specific conditions, and distilling and separating the resultant extract.
CONSTITUTION: Acetic acid is extracted from its aqueous solution 1 with a mixed solvent 2 which is a mixture of a solvent having a higher boiling point than the acetic acid with a solvent having a lower boiling point than the acetic acid, and the component having a lower distribution coefficient in acetic acid has a higher selectivity for water than the other component e.g. a mixed solvent of diisobutyl ketone with ethyl acetate or isophorone with benzene. The acetic acid 9 is then separated and recovered from the resultant extract 3 by the distillation. In the process, the solvent having the lower boiling point than the acetic acid is first removed in the dehydrating step, and the acetic acid concentration in the extract is increased to improve the separability of the acetic acid in the next recovering step of the acetic acid and reduce the thermal load of evaporation due to the solvent having the higher boiling point.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8218181A JPS57197240A (en) | 1981-05-29 | 1981-05-29 | Recovering method of acetic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8218181A JPS57197240A (en) | 1981-05-29 | 1981-05-29 | Recovering method of acetic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57197240A true JPS57197240A (en) | 1982-12-03 |
| JPH0138095B2 JPH0138095B2 (en) | 1989-08-11 |
Family
ID=13767261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8218181A Granted JPS57197240A (en) | 1981-05-29 | 1981-05-29 | Recovering method of acetic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57197240A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0635474A1 (en) * | 1993-07-12 | 1995-01-25 | Glitsch, Inc. | Method and apparatus for recovering acetic acid from aqueous streams |
| CN103288621A (en) * | 2013-06-27 | 2013-09-11 | 中华人民共和国唐山出入境检验检疫局 | System for automatically recycling acetic acid from ceramic leaching liquid waste |
| WO2017125964A1 (en) | 2016-01-20 | 2017-07-27 | 株式会社ダイセル | Method for producing ketene derivative |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934966A (en) * | 1972-08-03 | 1974-03-30 |
-
1981
- 1981-05-29 JP JP8218181A patent/JPS57197240A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4934966A (en) * | 1972-08-03 | 1974-03-30 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0635474A1 (en) * | 1993-07-12 | 1995-01-25 | Glitsch, Inc. | Method and apparatus for recovering acetic acid from aqueous streams |
| CN103288621A (en) * | 2013-06-27 | 2013-09-11 | 中华人民共和国唐山出入境检验检疫局 | System for automatically recycling acetic acid from ceramic leaching liquid waste |
| WO2017125964A1 (en) | 2016-01-20 | 2017-07-27 | 株式会社ダイセル | Method for producing ketene derivative |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0138095B2 (en) | 1989-08-11 |
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