JPS5645432A - Separation of cresol isomer - Google Patents
Separation of cresol isomerInfo
- Publication number
- JPS5645432A JPS5645432A JP12088179A JP12088179A JPS5645432A JP S5645432 A JPS5645432 A JP S5645432A JP 12088179 A JP12088179 A JP 12088179A JP 12088179 A JP12088179 A JP 12088179A JP S5645432 A JPS5645432 A JP S5645432A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- separation
- desorbing agent
- aliphatic nitrile
- isomers
- 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.)
- Pending
Links
Abstract
PURPOSE: In the continuous adsorption separation of a mixture of cresol isomers with a zeolite adsorbent, an aliphatic nitrile is used as a desorbing agent having high handleability and high adsorption selectivity between the isomers.
CONSTITUTION: A mixture of cresol isomers are separated continuously to the components by adsorption using a zeolite adsorbent and a desorbing agent containing an aliphatic nitrile as an essential component. Any aliphatic nitrile can be used provided that it has different boiling point from the cresols, however, propionitrile, butyronitrile, valeronitrile, etc. are especially preferable. It may be used singly or as a mixture with othr desorbing agent. The preferable adsorbent is a faujasite-type zeolite wherein the cation is mainly potassium. The separation is pref. carried out at room temperature to 250°C under atmospheric pressure to 30kg/cm2 as a liquid phase.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12088179A JPS5645432A (en) | 1979-09-21 | 1979-09-21 | Separation of cresol isomer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12088179A JPS5645432A (en) | 1979-09-21 | 1979-09-21 | Separation of cresol isomer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5645432A true JPS5645432A (en) | 1981-04-25 |
Family
ID=14797272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12088179A Pending JPS5645432A (en) | 1979-09-21 | 1979-09-21 | Separation of cresol isomer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5645432A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4386225A (en) * | 1982-01-11 | 1983-05-31 | Uop Inc. | Process for the separation of cresol from xylenol |
US4571441A (en) * | 1982-12-28 | 1986-02-18 | Toray Industries, Inc. | Process for separation of substituted benzene isomers |
US5149887A (en) * | 1989-12-28 | 1992-09-22 | Uop | Separation of alkyl-substituted phenolic isomers with barium-potassium exchanged zeolitic adsorbent |
-
1979
- 1979-09-21 JP JP12088179A patent/JPS5645432A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4386225A (en) * | 1982-01-11 | 1983-05-31 | Uop Inc. | Process for the separation of cresol from xylenol |
US4571441A (en) * | 1982-12-28 | 1986-02-18 | Toray Industries, Inc. | Process for separation of substituted benzene isomers |
US5149887A (en) * | 1989-12-28 | 1992-09-22 | Uop | Separation of alkyl-substituted phenolic isomers with barium-potassium exchanged zeolitic adsorbent |
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