FR2496101B1 - - Google Patents
Info
- Publication number
- FR2496101B1 FR2496101B1 FR8123532A FR8123532A FR2496101B1 FR 2496101 B1 FR2496101 B1 FR 2496101B1 FR 8123532 A FR8123532 A FR 8123532A FR 8123532 A FR8123532 A FR 8123532A FR 2496101 B1 FR2496101 B1 FR 2496101B1
- Authority
- FR
- France
- 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.)
- Expired
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
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3047489 | 1980-12-17 | ||
| DE3133310A DE3133310C2 (de) | 1980-12-17 | 1981-08-22 | Verfahren zur kontinuierlichen Abtrennung schwerflüchtiger Bestandteile von einem durch Naphthalin-Oxidation hergestellten Roh-Phthalsäureanhydrid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2496101A1 FR2496101A1 (fr) | 1982-06-18 |
| FR2496101B1 true FR2496101B1 (OSRAM) | 1984-07-13 |
Family
ID=25789774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8123532A Granted FR2496101A1 (fr) | 1980-12-17 | 1981-12-16 | Procede pour separer en continu des constituants peu volatils d'un anhydride phtalique brut fabrique par oxydation de naphtalene |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4430163A (OSRAM) |
| DE (1) | DE3133310C2 (OSRAM) |
| FR (1) | FR2496101A1 (OSRAM) |
| IT (1) | IT1139868B (OSRAM) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0722645B2 (ja) * | 1988-10-18 | 1995-03-15 | 出光石油化学株式会社 | ポリアリーレンスルフィド製造溶媒の回収方法 |
| US5214157A (en) * | 1991-05-07 | 1993-05-25 | Exxon Chemical Patents Inc. | Process for the disposal of phthalic anhydride decomposer vapors |
| DE19500031A1 (de) * | 1995-01-02 | 1996-07-04 | Basf Ag | Verfahren zur Herstellung von 3-Chlorphthalsäureanhydrid |
| US9085472B2 (en) * | 2010-02-26 | 2015-07-21 | General Electric Company | Gasification system employing ejectors |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3011955A (en) | 1959-06-04 | 1961-12-05 | Scient Design Co | Purification of phthalic anhydride |
| DE1295540B (de) * | 1965-05-04 | 1969-05-22 | Metallgesellschaft Ag | Verfahren zur Herstellung von reinstem Phthalsaeureanhydrid |
| DE1768059C2 (de) * | 1968-03-27 | 1975-08-28 | Davy Powergas Gmbh, 5000 Koeln | Verfahren zur Gewinnung von vorgereinigtem Phthalsäureanhydrid |
| DE1768817B1 (de) | 1968-07-03 | 1972-04-27 | Zieren Chemiebau Gmbh Dr A | Verfahren zur Reinigung von rohem Phthalsaeureanhydrid durch Destillation |
| FR2017955B1 (OSRAM) | 1968-08-02 | 1975-09-26 | Chemie Linz Ag | |
| DE1807039C3 (de) | 1968-11-05 | 1980-06-04 | Lentia Gmbh Chem. U. Pharm. Erzeugnisse-Industriebedarf, 8000 Muenchen | Verfahren zur Gewinnung von reinem Phthalsäureanhydrid |
| FR1600064A (OSRAM) * | 1968-12-30 | 1970-07-20 |
-
1981
- 1981-08-22 DE DE3133310A patent/DE3133310C2/de not_active Expired
- 1981-11-27 IT IT25334/81A patent/IT1139868B/it active
- 1981-12-16 US US06/331,234 patent/US4430163A/en not_active Expired - Lifetime
- 1981-12-16 FR FR8123532A patent/FR2496101A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2496101A1 (fr) | 1982-06-18 |
| DE3133310C2 (de) | 1984-06-28 |
| IT1139868B (it) | 1986-09-24 |
| IT8125334A0 (it) | 1981-11-27 |
| US4430163A (en) | 1984-02-07 |
| DE3133310A1 (de) | 1982-06-24 |