JPS5665836A - Separating method of highly pure dimethylphenol - Google Patents
Separating method of highly pure dimethylphenolInfo
- Publication number
- JPS5665836A JPS5665836A JP14200579A JP14200579A JPS5665836A JP S5665836 A JPS5665836 A JP S5665836A JP 14200579 A JP14200579 A JP 14200579A JP 14200579 A JP14200579 A JP 14200579A JP S5665836 A JPS5665836 A JP S5665836A
- Authority
- JP
- Japan
- Prior art keywords
- dimethylphenol
- fraction
- phenol
- methanol
- column
- 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 obtain the titled compound useful as a raw material for a heat-resistant resin, etc., by the fractional distillation of the reaction mixture of a phenol with methanol in the vapor phase in the prepsence of a catalyst, and treating the resultant cresol-containing fraction with methanol, phenol or/and steam.
CONSTITUTION: After phenol is reacted with methanol in the vapor phase in the presence of a catalyst, the solution of the reaction product is distilled to give a creso- containing fraction at the top of the column and a fraction containing di- and trimethylphenols at the bottom of the column. The fraction at the bottom of the column scarcely contains cresol and high-purity dimethylphenol is readily separated and purified. Although the separation of the dimethylphenol from said cresol-containing fraction is very difficult, high-purity dimethylphenol can also be obtained from said fraction by the treatment with methanol, phenol or/and steam industrially and advantageously.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14200579A JPS5665836A (en) | 1979-11-05 | 1979-11-05 | Separating method of highly pure dimethylphenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14200579A JPS5665836A (en) | 1979-11-05 | 1979-11-05 | Separating method of highly pure dimethylphenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5665836A true JPS5665836A (en) | 1981-06-03 |
Family
ID=15305160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14200579A Pending JPS5665836A (en) | 1979-11-05 | 1979-11-05 | Separating method of highly pure dimethylphenol |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5665836A (en) |
-
1979
- 1979-11-05 JP JP14200579A patent/JPS5665836A/en active Pending
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