JPS57184401A - Recovery of solvent from dilute aqueous solution of solvent - Google Patents
Recovery of solvent from dilute aqueous solution of solventInfo
- Publication number
- JPS57184401A JPS57184401A JP6864881A JP6864881A JPS57184401A JP S57184401 A JPS57184401 A JP S57184401A JP 6864881 A JP6864881 A JP 6864881A JP 6864881 A JP6864881 A JP 6864881A JP S57184401 A JPS57184401 A JP S57184401A
- Authority
- JP
- Japan
- Prior art keywords
- extracting
- tower
- ethyl acetate
- acetic acid
- supply line
- 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
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Extraction Or Liquid Replacement (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To stably operate an extracting tower and the succeeding distillation tower by carrying out extracting operation by supplying a part of an extracting agent to a feed liquid supply line of the extracting tower to prevent the clogging of the automatic control apparatus of the raw liquid due to a low molecular polymer.
CONSTITUTION: To a feed liquid supply line 2 connected to the upper part of an extracting tower 1, a flow detecting end 7 and a flow control valve 8 are provided and, to an extracting agent supply line 3 provided to the lower part of the extracting tower 1, a branched pipe 6 is provided to continuously supply a part of an extracting agent to the feed liquid supply line 2. When a dilute acetic acid aqueous solution is used as the feed liquid and ethyl acetate is used as the extracting agent to carry out extraction, ethyl acetate containing acetic acid extracted therefrom is taken out from the line 10 of a tower top. This mixed liquid is sent to a distillation tower 11 and acetic acid is recovered from an acetic acid recovering line 12 and ethyl acetate is recovered from an ethyl acetate recovering line 13. In this case, when ethyl acetate is supplied to the raw liquid in a range of about 0.5W20wt,% in the extracting tower 1, a polymer is not adhered to an automatic flow control apparatus.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6864881A JPS57184401A (en) | 1981-05-07 | 1981-05-07 | Recovery of solvent from dilute aqueous solution of solvent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6864881A JPS57184401A (en) | 1981-05-07 | 1981-05-07 | Recovery of solvent from dilute aqueous solution of solvent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57184401A true JPS57184401A (en) | 1982-11-13 |
| JPS621619B2 JPS621619B2 (en) | 1987-01-14 |
Family
ID=13379728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6864881A Granted JPS57184401A (en) | 1981-05-07 | 1981-05-07 | Recovery of solvent from dilute aqueous solution of solvent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57184401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921299A (en) * | 2012-11-13 | 2013-02-13 | 常州大学 | Method for processing furfural industrial sewage |
-
1981
- 1981-05-07 JP JP6864881A patent/JPS57184401A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921299A (en) * | 2012-11-13 | 2013-02-13 | 常州大学 | Method for processing furfural industrial sewage |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS621619B2 (en) | 1987-01-14 |
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