AT284822B - Verfahren zur Gewinnung von reinem Trimellithsäureanhydrid - Google Patents
Verfahren zur Gewinnung von reinem TrimellithsäureanhydridInfo
- Publication number
- AT284822B AT284822B AT1202268A AT1202268A AT284822B AT 284822 B AT284822 B AT 284822B AT 1202268 A AT1202268 A AT 1202268A AT 1202268 A AT1202268 A AT 1202268A AT 284822 B AT284822 B AT 284822B
- Authority
- AT
- Austria
- Prior art keywords
- recovery
- trimellitic anhydride
- pure
- pure trimellitic
- anhydride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR134511 | 1967-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT284822B true AT284822B (de) | 1970-09-25 |
Family
ID=8644000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT1202268A AT284822B (de) | 1967-12-29 | 1968-12-10 | Verfahren zur Gewinnung von reinem Trimellithsäureanhydrid |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT284822B (de) |
| BE (1) | BE726024A (de) |
| DE (1) | DE1817192A1 (de) |
| ES (1) | ES361670A1 (de) |
| FR (1) | FR1556414A (de) |
| GB (1) | GB1236080A (de) |
| NL (1) | NL6818635A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT952118B (it) * | 1971-03-23 | 1973-07-20 | Standard Oil Co | Metodo di recupero di anidride trimellitica da prodotto grezzo che la contiene |
-
1967
- 1967-12-29 FR FR1556414D patent/FR1556414A/fr not_active Expired
-
1968
- 1968-12-10 AT AT1202268A patent/AT284822B/de not_active IP Right Cessation
- 1968-12-19 ES ES361670A patent/ES361670A1/es not_active Expired
- 1968-12-24 BE BE726024D patent/BE726024A/xx unknown
- 1968-12-24 GB GB6145068A patent/GB1236080A/en not_active Expired
- 1968-12-24 NL NL6818635A patent/NL6818635A/xx not_active Application Discontinuation
- 1968-12-27 DE DE19681817192 patent/DE1817192A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1236080A (en) | 1971-06-16 |
| BE726024A (de) | 1969-05-29 |
| DE1817192A1 (de) | 1969-08-14 |
| ES361670A1 (es) | 1971-01-01 |
| FR1556414A (de) | 1969-02-07 |
| NL6818635A (de) | 1969-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |