AT250937B - Verfahren zur Herstellung von Pyromellithsäuredianhydrid - Google Patents
Verfahren zur Herstellung von PyromellithsäuredianhydridInfo
- Publication number
- AT250937B AT250937B AT956564A AT956564A AT250937B AT 250937 B AT250937 B AT 250937B AT 956564 A AT956564 A AT 956564A AT 956564 A AT956564 A AT 956564A AT 250937 B AT250937 B AT 250937B
- Authority
- AT
- Austria
- Prior art keywords
- production
- pyromellitic dianhydride
- dianhydride
- pyromellitic
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Furan Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG39168A DE1246707B (de) | 1963-11-14 | 1963-11-14 | Verfahren zur katalytischen Gasphasenoxydation von 1, 2, 4, 5-substituierten Dimethyldiisopropyl- und Trimethylisopropylbenzolen und Durol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT250937B true AT250937B (de) | 1966-12-12 |
Family
ID=7126078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT956564A AT250937B (de) | 1963-11-14 | 1964-11-12 | Verfahren zur Herstellung von Pyromellithsäuredianhydrid |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS499451B1 (fr) |
| AT (1) | AT250937B (fr) |
| BE (1) | BE655686A (fr) |
| CH (1) | CH438259A (fr) |
| DE (1) | DE1246707B (fr) |
| FR (1) | FR1415112A (fr) |
| GB (1) | GB1081287A (fr) |
| NL (1) | NL6413133A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5592177A (en) * | 1978-12-30 | 1980-07-12 | Matsushita Electric Works Ltd | Instrument for generating circular motion |
| US5663114A (en) * | 1993-10-22 | 1997-09-02 | Nippon Shokubai Co., Ltd. | Catalyst for production of pyromellitic anhydride and method for production of pyromellitic anhydride |
| JP2003055382A (ja) | 2001-08-08 | 2003-02-26 | Nippon Shokubai Co Ltd | 無水ピロメリット酸の製造方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2625555A (en) * | 1947-10-08 | 1953-01-13 | California Research Corp | Production of aryl tetracarboxylic acid anhydrides |
| US2576625A (en) * | 1947-10-08 | 1951-11-27 | California Research Corp | Production of polycarboxylic acid products |
-
1963
- 1963-11-14 DE DEG39168A patent/DE1246707B/de active Pending
-
1964
- 1964-11-02 CH CH1413564A patent/CH438259A/de unknown
- 1964-11-11 NL NL6413133A patent/NL6413133A/xx unknown
- 1964-11-12 AT AT956564A patent/AT250937B/de active
- 1964-11-13 FR FR994802A patent/FR1415112A/fr not_active Expired
- 1964-11-13 JP JP39063781A patent/JPS499451B1/ja active Pending
- 1964-11-13 BE BE655686A patent/BE655686A/xx unknown
- 1964-11-13 GB GB46405/64A patent/GB1081287A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1081287A (en) | 1967-08-31 |
| NL6413133A (fr) | 1965-05-17 |
| CH438259A (de) | 1967-06-30 |
| JPS499451B1 (fr) | 1974-03-05 |
| BE655686A (fr) | 1965-03-01 |
| FR1415112A (fr) | 1965-10-22 |
| DE1246707B (de) | 1967-08-10 |
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