JPS6422832A - Purification of high-purity 2,4-xylenol - Google Patents
Purification of high-purity 2,4-xylenolInfo
- Publication number
- JPS6422832A JPS6422832A JP17727887A JP17727887A JPS6422832A JP S6422832 A JPS6422832 A JP S6422832A JP 17727887 A JP17727887 A JP 17727887A JP 17727887 A JP17727887 A JP 17727887A JP S6422832 A JPS6422832 A JP S6422832A
- Authority
- JP
- Japan
- Prior art keywords
- xylenol
- aldehyde
- isomer mixture
- purify
- purity
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE:To purify the titled high-purity compound, by reacting a xylenol isomer mixture with an aldehyde and while severely controlling consumption of a mineral acid used in condensed reaction and condensation reaction temperature and separating and removing 2,5-xylenol as a condensed product. CONSTITUTION:A xylenol isomer mixture (preferably crude 2,4-xylenol, especially containing 85-95% 2,4-xylenol) containing 2,4-xylenol and 2,5-xylenol is reacted with an aldehyde in the presence of a mineral acid (especially preferably hydrochloric acid or sulfuric acid) of 0.01-2pts.wt., especially 0.10-0.20pt.wt. based on 100pts.wt. xylenol isomer mixture at 0-50 deg.C (especially preferably 10-30 deg.C) to afford 2,5-xylenol as a xylenolaldehyde condensation product, which is then separated from 2,4-xylenol to purify 2,4-xylenol. 0.5-1.5 time mol. aldehyde is preferably used to 1mol. 2,5-xylenol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17727887A JPS6422832A (en) | 1987-07-17 | 1987-07-17 | Purification of high-purity 2,4-xylenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17727887A JPS6422832A (en) | 1987-07-17 | 1987-07-17 | Purification of high-purity 2,4-xylenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6422832A true JPS6422832A (en) | 1989-01-25 |
Family
ID=16028250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17727887A Pending JPS6422832A (en) | 1987-07-17 | 1987-07-17 | Purification of high-purity 2,4-xylenol |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6422832A (en) |
-
1987
- 1987-07-17 JP JP17727887A patent/JPS6422832A/en active Pending
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