JPS5643230A - Preparation of ortho-alkylated phenols - Google Patents
Preparation of ortho-alkylated phenolsInfo
- Publication number
- JPS5643230A JPS5643230A JP11930579A JP11930579A JPS5643230A JP S5643230 A JPS5643230 A JP S5643230A JP 11930579 A JP11930579 A JP 11930579A JP 11930579 A JP11930579 A JP 11930579A JP S5643230 A JPS5643230 A JP S5643230A
- Authority
- JP
- Japan
- Prior art keywords
- ortho
- phenols
- catalyst
- prepared
- preparation
- 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
- 150000002989 phenols Chemical class 0.000 title abstract 4
- 238000002360 preparation method Methods 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 abstract 4
- 230000003197 catalytic effect Effects 0.000 abstract 3
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 2
- 238000005804 alkylation reaction Methods 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 230000029936 alkylation Effects 0.000 abstract 1
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract 1
- 229920001955 polyphenylene ether Polymers 0.000 abstract 1
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
Abstract
PURPOSE: To prepare the titled compound in high selectivity, by the selective alkylation of the H atom at the ortho-position of phenols, in the presence of a catalyst having improved temperature activity and catalytic life and prepared by the reducing treatment of a catalyst containing chromium oxide, etc. before reaction.
CONSTITUTION: Phenols containing one or more ortho-alkyl groups and useful as a raw material for the preparation of polyphenylene ether, is prepared by the gas- phase catalytic ortho-alkylation reaction of phenols having one or more H atoms at the aromatic ring and denoted by the formula (R1WR5 are H, 1W4C hydrocarbon group, or aromatic hydrocarbon group; at least one of R1WR5 is H) with 1W4C lower alcohols in the presence of a catalyst containing chromium oxide, etc. at 310W530°C and a gas space velocity of 250W20.000hr-1. The catalyst is prepared by calcining the raw materials in a reducing gas atmosphere, and forming to the desired form; e.g. by calcining a dried catalytic composition in a reducing gas atmosphere at 200W600°C for 0.3W30hr, and forming with a tableting press, etc.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11930579A JPS5643230A (en) | 1979-09-19 | 1979-09-19 | Preparation of ortho-alkylated phenols |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11930579A JPS5643230A (en) | 1979-09-19 | 1979-09-19 | Preparation of ortho-alkylated phenols |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5643230A true JPS5643230A (en) | 1981-04-21 |
| JPH0158170B2 JPH0158170B2 (en) | 1989-12-11 |
Family
ID=14758128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11930579A Granted JPS5643230A (en) | 1979-09-19 | 1979-09-19 | Preparation of ortho-alkylated phenols |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5643230A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554260A (en) * | 1984-07-13 | 1985-11-19 | Exxon Research & Engineering Co. | Two stage process for improving the catalyst life of zeolites in the synthesis of lower olefins from alcohols and their ether derivatives |
| US4638106A (en) * | 1984-07-13 | 1987-01-20 | Exxon Research & Engineering Co. | Two stage process for improving the catalyst life of zeolites in the synthesis of lower olefins from alcohols and their ether derivatives |
| US4851200A (en) * | 1988-01-04 | 1989-07-25 | Mobil Oil Corporation | Method for removing organic residue from as-synthesized zeolites |
| EP0785180A3 (en) * | 1996-01-16 | 1997-12-10 | General Electric Company | Process for the alkylation of hydroxyaromatic compounds |
| JP2014106084A (en) * | 2012-11-27 | 2014-06-09 | Furukawa Industrial Machinery Systems Co Ltd | Device and method for inspecting granulated substance |
-
1979
- 1979-09-19 JP JP11930579A patent/JPS5643230A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4554260A (en) * | 1984-07-13 | 1985-11-19 | Exxon Research & Engineering Co. | Two stage process for improving the catalyst life of zeolites in the synthesis of lower olefins from alcohols and their ether derivatives |
| US4638106A (en) * | 1984-07-13 | 1987-01-20 | Exxon Research & Engineering Co. | Two stage process for improving the catalyst life of zeolites in the synthesis of lower olefins from alcohols and their ether derivatives |
| US4851200A (en) * | 1988-01-04 | 1989-07-25 | Mobil Oil Corporation | Method for removing organic residue from as-synthesized zeolites |
| EP0785180A3 (en) * | 1996-01-16 | 1997-12-10 | General Electric Company | Process for the alkylation of hydroxyaromatic compounds |
| JP2014106084A (en) * | 2012-11-27 | 2014-06-09 | Furukawa Industrial Machinery Systems Co Ltd | Device and method for inspecting granulated substance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0158170B2 (en) | 1989-12-11 |
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