BE686254A - - Google Patents
Info
- Publication number
- BE686254A BE686254A BE686254DA BE686254A BE 686254 A BE686254 A BE 686254A BE 686254D A BE686254D A BE 686254DA BE 686254 A BE686254 A BE 686254A
- Authority
- BE
- Belgium
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)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US485115A US3361650A (en) | 1965-09-03 | 1965-09-03 | Phthalic anhydride treatment in the presence of hbr in an aluminum vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE686254A true BE686254A (US07922777-20110412-C00004.png) | 1967-02-28 |
Family
ID=23926964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE686254D BE686254A (US07922777-20110412-C00004.png) | 1965-09-03 | 1966-08-31 |
Country Status (5)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213831A (en) * | 1972-10-30 | 1980-07-22 | The Dow Chemical Company | Aluminum container for processing vinylbenzyl chlorides |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2072053A (en) * | 1937-02-23 | Purification of naphthenic acids | ||
| US2067019A (en) * | 1933-12-29 | 1937-01-05 | Nat Aniline & Chem Co Inc | Phthalic anhydride recovery |
| US2091289A (en) * | 1934-12-31 | 1937-08-31 | Solvay Process Co | Purification of phthalic anhydride |
| US2283209A (en) * | 1939-05-18 | 1942-05-19 | Eastman Kodak Co | Apparatus for the manufacture of organic acid anhydrides |
| US2543971A (en) * | 1947-04-24 | 1951-03-06 | American Cyanamid Co | Apparatus and process for distillation of hcn |
| GB795999A (en) * | 1955-07-07 | 1958-06-04 | Dow Chemical Co | Removal of volatile ingredients from thermoplastic polymers |
| US2850440A (en) * | 1955-09-07 | 1958-09-02 | Pittsburgh Coke & Chemical Co | Purification of phthalic anhydride by distillation |
| US2954385A (en) * | 1957-10-02 | 1960-09-27 | Standard Oil Co | Production of maleic and phthalic anhydrides |
-
0
- NL NL129493D patent/NL129493C/xx active
-
1965
- 1965-09-03 US US485115A patent/US3361650A/en not_active Expired - Lifetime
-
1966
- 1966-06-28 GB GB28938/66A patent/GB1081839A/en not_active Expired
- 1966-07-27 ES ES0330043A patent/ES330043A1/es not_active Expired
- 1966-08-22 NL NL6611780A patent/NL6611780A/xx unknown
- 1966-08-31 BE BE686254D patent/BE686254A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL129493C (US07922777-20110412-C00004.png) | |
| ES330043A1 (es) | 1967-09-16 |
| GB1081839A (en) | 1967-09-06 |
| NL6611780A (US07922777-20110412-C00004.png) | 1967-03-06 |
| US3361650A (en) | 1968-01-02 |
