JPS5675446A - Preparation of phenol - Google Patents
Preparation of phenolInfo
- Publication number
- JPS5675446A JPS5675446A JP15203579A JP15203579A JPS5675446A JP S5675446 A JPS5675446 A JP S5675446A JP 15203579 A JP15203579 A JP 15203579A JP 15203579 A JP15203579 A JP 15203579A JP S5675446 A JPS5675446 A JP S5675446A
- Authority
- JP
- Japan
- Prior art keywords
- mercaptan
- phenol
- recover
- oxidation reaction
- high yield
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To recover a phenol in high yield, by oxidizing an alkyl aromatic compound in the liquid phase in the presence of a mercaptan as a catalyst, and distilling off a phenol from the resultant oxidation reaction product at a specific temperature to recover also the mercaptan in high yield.
CONSTITUTION: An alkyl aromatic compound such as a secondary alkyl-substituted aromatic hydrocarbon, e.g. p-cymene, is oxidized with molecular oxygen in an organic solvent, e.g. acetic acid, in the presence of a mercaptan, e.g. an aromatic mercaptan having an acid dissociation constant less than 7.8, at 50W80°C and atmospheric pressure. The resultant oxidation reaction product is then distilled at 120°C or below, preferably at 100°C or below, for 10min to two hours, to recover a phenol in high yield. The residue is further distilled to recover the mercaptan, which may be reused in the oxidation reaction. The shorter time for the distillation may provide the higher recovery of the phenol.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15203579A JPS5675446A (en) | 1979-11-26 | 1979-11-26 | Preparation of phenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15203579A JPS5675446A (en) | 1979-11-26 | 1979-11-26 | Preparation of phenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5675446A true JPS5675446A (en) | 1981-06-22 |
Family
ID=15531623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15203579A Pending JPS5675446A (en) | 1979-11-26 | 1979-11-26 | Preparation of phenol |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5675446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563663A (en) * | 1982-07-16 | 1986-01-07 | Fujisoku Electric Co. Ltd. | Core member for an electromagnetic relay |
-
1979
- 1979-11-26 JP JP15203579A patent/JPS5675446A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4563663A (en) * | 1982-07-16 | 1986-01-07 | Fujisoku Electric Co. Ltd. | Core member for an electromagnetic relay |
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