JPS57193422A - Production of aromatic carboxylic acid - Google Patents
Production of aromatic carboxylic acidInfo
- Publication number
- JPS57193422A JPS57193422A JP56077243A JP7724381A JPS57193422A JP S57193422 A JPS57193422 A JP S57193422A JP 56077243 A JP56077243 A JP 56077243A JP 7724381 A JP7724381 A JP 7724381A JP S57193422 A JPS57193422 A JP S57193422A
- Authority
- JP
- Japan
- Prior art keywords
- water
- acetic acid
- aromatic compound
- solvent
- oxidation
- 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
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 title abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 8
- 150000001491 aromatic compounds Chemical group 0.000 abstract 4
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000011541 reaction mixture Substances 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE: When an aromatic compound bearing methyl groups is catalytically oxidized into the titled compound, acetic acid which contains a specific amount of water is used as a solvent and the above aromatic compound is added to the distillate mix of water and acetic acid originating from the reaction mixture, then concentration is conducted again to separate the water formed as a by- product advantageously.
CONSTITUTION: An aromatic compound having at least one of methyl groups is oxidized with a gas containing molecular oxygen in the presence of a heavy metal catalyst in a solvent of acetic acid containing 5W25wt% water. Then, the distillate mix that is mainly composed of water and acetic acid orginating from the reaction mixture is combined with the aromatic compound newly fed and they are subjected to concentration to distil off almost the same amount of water as that of the water formed in the oxidation and recover the remaining containing acetic acid. The remaining is circulated to the above oxidation stage, whereby the water formed in the oxidation is separated from the acetic acid solvent without precise rectification operations and the objective aromatic carboxylic acid is produced economically.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56077243A JPS57193422A (en) | 1981-05-21 | 1981-05-21 | Production of aromatic carboxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56077243A JPS57193422A (en) | 1981-05-21 | 1981-05-21 | Production of aromatic carboxylic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57193422A true JPS57193422A (en) | 1982-11-27 |
Family
ID=13628412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56077243A Pending JPS57193422A (en) | 1981-05-21 | 1981-05-21 | Production of aromatic carboxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57193422A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59170039A (en) * | 1983-03-10 | 1984-09-26 | デイナミ−ト・ノ−ベル・アクチエンゲゼルシヤフト | Manufacture of halogenobenzoic acid |
-
1981
- 1981-05-21 JP JP56077243A patent/JPS57193422A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59170039A (en) * | 1983-03-10 | 1984-09-26 | デイナミ−ト・ノ−ベル・アクチエンゲゼルシヤフト | Manufacture of halogenobenzoic acid |
| JPH052663B2 (en) * | 1983-03-10 | 1993-01-13 | Dynamit Nobel Ag |
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