JPS55115832A - Cleaning of distillation column of cyclohexane - Google Patents
Cleaning of distillation column of cyclohexaneInfo
- Publication number
- JPS55115832A JPS55115832A JP2420579A JP2420579A JPS55115832A JP S55115832 A JPS55115832 A JP S55115832A JP 2420579 A JP2420579 A JP 2420579A JP 2420579 A JP2420579 A JP 2420579A JP S55115832 A JPS55115832 A JP S55115832A
- Authority
- JP
- Japan
- Prior art keywords
- distillation column
- cyclohexane
- reaction mixture
- water
- clean
- 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
- Cleaning By Liquid Or Steam (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To clean with ease a distillation column contaminated by solid matters without stopping the operation, by introducing a specific amount of water into the distillation column in motion as quickly as possible in the preparation of cyclohexanone, etc. from cyclohexane.
CONSTITUTION: Cyclohexane is submitted to air oxidation in liquid phase in the presence of foric acid to give a reaction mixture, from which unreacted cyclohexane is separated continuously by means of distillation to give cyclohexanone and cyclohexanol. In this operation, 0.1W0.5vol% of water based on the amount of the reaction mixture introduced per hour is added to the distillation column of cyclohexane in operation as shot a time as prossible (within 10min, preferably within 6min) to clean the distillation column. A position where water is fed is any position from the feed opening of the reaction mixture to the bottom of the distillation column.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2420579A JPS5935366B2 (en) | 1979-03-02 | 1979-03-02 | Cleaning method for cyclohexane distillation column |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2420579A JPS5935366B2 (en) | 1979-03-02 | 1979-03-02 | Cleaning method for cyclohexane distillation column |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55115832A true JPS55115832A (en) | 1980-09-06 |
JPS5935366B2 JPS5935366B2 (en) | 1984-08-28 |
Family
ID=12131804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2420579A Expired JPS5935366B2 (en) | 1979-03-02 | 1979-03-02 | Cleaning method for cyclohexane distillation column |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5935366B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1056825C (en) * | 1996-01-24 | 2000-09-27 | 巴陵石油化工公司鹰山石油化工厂 | Anti-scaling method for reboiler of distillation tower of cyclohexane oxidation apparatus |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6399838U (en) * | 1986-12-19 | 1988-06-28 | ||
JPH0364246U (en) * | 1989-10-23 | 1991-06-24 |
-
1979
- 1979-03-02 JP JP2420579A patent/JPS5935366B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1056825C (en) * | 1996-01-24 | 2000-09-27 | 巴陵石油化工公司鹰山石油化工厂 | Anti-scaling method for reboiler of distillation tower of cyclohexane oxidation apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS5935366B2 (en) | 1984-08-28 |
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