JPS643148A - Production of 2,6-naphthalenedicarboxylic acid - Google Patents
Production of 2,6-naphthalenedicarboxylic acidInfo
- Publication number
- JPS643148A JPS643148A JP62159217A JP15921787A JPS643148A JP S643148 A JPS643148 A JP S643148A JP 62159217 A JP62159217 A JP 62159217A JP 15921787 A JP15921787 A JP 15921787A JP S643148 A JPS643148 A JP S643148A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- solvent
- dimethylnaphthalene
- oxidizing
- molecular
- 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
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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
PURPOSE: To obtain the titled compound in high yield keeping the concentration of the raw material compound in the reaction system at a high level, by oxidizing 2,6-dimethylnaphthalene raw material with molecular O2 in the presence of a catalyst containing Co, Mn and Br using a specific mixture as a solvent.
CONSTITUTION: The objective compound is produced by oxidizing 2,6- dimethylnaphthalene with molecular O2 in a solvent composed of an aliphatic carboxylic acid (e.g. acetic acid) and an aromatic compound of formula (X is halogen; n is 0W3) (e.g. o-dichlorobenzene) in the presence of a catalyst containing CO (e.g. cobalt acetate), Mn (e.g., manganese acetate) and Br (e.g. NaBr) at 120W160°C for 0.15W5hr under a reaction system pressure above the vapor pressure of the reaction mixture and keeping the O2 partial pressure to usually ≤0.5kg/cm2, preferably ≥1.0kg/cm2, The volume ratio of the aliphatic carboxylic acid to the compound of formula in the above mixed solvent is 1 to 0.5W10. The productivity per unit amount of solvent can be improved.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62159217A JP2611232B2 (en) | 1987-06-26 | 1987-06-26 | Method for producing 2,6-naphthalenedicarboxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62159217A JP2611232B2 (en) | 1987-06-26 | 1987-06-26 | Method for producing 2,6-naphthalenedicarboxylic acid |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPS643148A true JPS643148A (en) | 1989-01-06 |
| JPH013148A JPH013148A (en) | 1989-01-06 |
| JP2611232B2 JP2611232B2 (en) | 1997-05-21 |
Family
ID=15688889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62159217A Expired - Lifetime JP2611232B2 (en) | 1987-06-26 | 1987-06-26 | Method for producing 2,6-naphthalenedicarboxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2611232B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02164844A (en) * | 1988-12-19 | 1990-06-25 | Nkk Corp | Method for producing naphthoic acids and/or naphthalene polycarboxylic acids |
| US5523473A (en) * | 1992-12-30 | 1996-06-04 | Nippon Shokubai Co., Ltd. | Method of producing naphthalenedicarboxylic acids and diaryldicarboxylic acids |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4975563A (en) * | 1972-11-25 | 1974-07-20 | ||
| JPS5217453A (en) * | 1975-07-30 | 1977-02-09 | Mitsui Petrochem Ind Ltd | Process for preparation of 2,6- naphthalenedicarboxylic acid |
| JPS61286342A (en) * | 1985-06-13 | 1986-12-16 | Mitsubishi Gas Chem Co Inc | Production of acyloxynaphthoic acid |
-
1987
- 1987-06-26 JP JP62159217A patent/JP2611232B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4975563A (en) * | 1972-11-25 | 1974-07-20 | ||
| JPS5217453A (en) * | 1975-07-30 | 1977-02-09 | Mitsui Petrochem Ind Ltd | Process for preparation of 2,6- naphthalenedicarboxylic acid |
| JPS61286342A (en) * | 1985-06-13 | 1986-12-16 | Mitsubishi Gas Chem Co Inc | Production of acyloxynaphthoic acid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02164844A (en) * | 1988-12-19 | 1990-06-25 | Nkk Corp | Method for producing naphthoic acids and/or naphthalene polycarboxylic acids |
| US5523473A (en) * | 1992-12-30 | 1996-06-04 | Nippon Shokubai Co., Ltd. | Method of producing naphthalenedicarboxylic acids and diaryldicarboxylic acids |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2611232B2 (en) | 1997-05-21 |
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