JPS5615821A - Purification in recovery of ketonic solvent - Google Patents
Purification in recovery of ketonic solventInfo
- Publication number
- JPS5615821A JPS5615821A JP9165479A JP9165479A JPS5615821A JP S5615821 A JPS5615821 A JP S5615821A JP 9165479 A JP9165479 A JP 9165479A JP 9165479 A JP9165479 A JP 9165479A JP S5615821 A JPS5615821 A JP S5615821A
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- pipe
- vapors
- solvents
- recovery
- 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
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
PURPOSE: To prevent the accumulation of impurities, e.g., peroxides, etc., formed from the catalytic actions of activated carbon in recovered solvent by subjecting desorbed vapors to an alkaline washing process in the recovery of ketonic solvents by means of activated carbon.
CONSTITUTION: A gas to be treated, containing the ketonic solvents is directed through the duct 8 into an adsorption tank 1 where the solvent is adsorbed and removed, whereas the gas containing no solvents is discharged out of a discharge pipe 9 to the air. After adsorption for a certain time, water vapor is introduced into the adsorption tank 1 through the conduit 10 for desorption of the solvent, and the desorbed vapors of a high temperature are introduced into the bottom of an alkaline washing tower 2 where they are brought into counterwise contact with a high-temperature alkaline solution supplied from a pipe 19 by a pump 22 to remove impurities. Then, the vapors give their latent heat to the circulating alkaline solution, then cooled by condensation in a cooler 4, and then directed to a decanter 5 where it is separated into a solvent layer and a water layer. The solvent layer is sent to a distilling column through a pipe 16 and recovered.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9165479A JPS5615821A (en) | 1979-07-20 | 1979-07-20 | Purification in recovery of ketonic solvent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9165479A JPS5615821A (en) | 1979-07-20 | 1979-07-20 | Purification in recovery of ketonic solvent |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5615821A true JPS5615821A (en) | 1981-02-16 |
JPS6211887B2 JPS6211887B2 (en) | 1987-03-16 |
Family
ID=14032487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9165479A Granted JPS5615821A (en) | 1979-07-20 | 1979-07-20 | Purification in recovery of ketonic solvent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5615821A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62156335U (en) * | 1986-03-27 | 1987-10-05 |
-
1979
- 1979-07-20 JP JP9165479A patent/JPS5615821A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62156335U (en) * | 1986-03-27 | 1987-10-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS6211887B2 (en) | 1987-03-16 |
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