JPS5551035A - Preparation of aromatic carboxylic acid - Google Patents
Preparation of aromatic carboxylic acidInfo
- Publication number
- JPS5551035A JPS5551035A JP12358978A JP12358978A JPS5551035A JP S5551035 A JPS5551035 A JP S5551035A JP 12358978 A JP12358978 A JP 12358978A JP 12358978 A JP12358978 A JP 12358978A JP S5551035 A JPS5551035 A JP S5551035A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- catalyst
- carboxylic acid
- pref
- aromatic carboxylic
- 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 prepare the title compound without degrading the activity of a catalyst, and suppressing the oxidative decomposition of the reaction solvent, by oxidizing an alkyl-substituted aromatic compound in liquid phase, in the presence of a catalyst system comprising a Co-Br catalyst or a Co-Mn-Br catalyst and a Zn compound.
CONSTITUTION: An aromatic carboxylic acid is prepared by the liquid-phase oxidation of an alkyl-substituted aromatic compound with an O2-containing gas in a lower aliphatic carboxylic acid solvent, in the presence of a catalyst comprising a heavy metal compound and a Br compound, wherein said catalyst is composed of (a) a Co compound, a Zn compound and a Br compound, or (b) a Co compound, a Mn compound, a Zn compound and a Br compound. The atomic ratio of Zn/Co is 0.001W3, pref. 0.01W1.5, that of Br/Co is 0.1W10, pref. 0.5W5, and that of Mn/Co in (b) composition is pref. 0.01W5.
EFFECT: There is no substantial undesirable in fluences to the yield and the qualities of the resulting aromatic carboxylic acid.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12358978A JPS5551035A (en) | 1978-10-09 | 1978-10-09 | Preparation of aromatic carboxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12358978A JPS5551035A (en) | 1978-10-09 | 1978-10-09 | Preparation of aromatic carboxylic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5551035A true JPS5551035A (en) | 1980-04-14 |
Family
ID=14864328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12358978A Pending JPS5551035A (en) | 1978-10-09 | 1978-10-09 | Preparation of aromatic carboxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5551035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5951242A (en) * | 1982-09-14 | 1984-03-24 | Toray Ind Inc | Preparation of m-nitrobenzoic acid |
-
1978
- 1978-10-09 JP JP12358978A patent/JPS5551035A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5951242A (en) * | 1982-09-14 | 1984-03-24 | Toray Ind Inc | Preparation of m-nitrobenzoic acid |
| JPS6228946B2 (en) * | 1982-09-14 | 1987-06-23 | Toray Industries |
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