BE693711A - - Google Patents
Info
- Publication number
- BE693711A BE693711A BE693711DA BE693711A BE 693711 A BE693711 A BE 693711A BE 693711D A BE693711D A BE 693711DA BE 693711 A BE693711 A BE 693711A
- 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)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US525344A US3407216A (en) | 1966-02-07 | 1966-02-07 | Method for reducing phthalide content of phthalic anhydride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE693711A true BE693711A (el) | 1967-08-07 |
Family
ID=24092851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE693711D BE693711A (el) | 1966-02-07 | 1967-02-06 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3407216A (el) |
| BE (1) | BE693711A (el) |
| DE (1) | DE1618204B1 (el) |
| ES (1) | ES337046A1 (el) |
| FR (1) | FR1510451A (el) |
| GB (1) | GB1154124A (el) |
| NL (1) | NL6701396A (el) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5885944A (en) * | 1996-05-21 | 1999-03-23 | The Lubrizol Corporation | Low chlorine polyalkylene substituted carboxylic acylating agent compositions and compounds derived therefrom |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2511861A (en) * | 1950-06-20 | Purification of phthalic anhydride | ||
| US3201423A (en) * | 1961-12-08 | 1965-08-17 | Mid Century Corp | Process for oxidizing alkyl benzenes to phthalic anhydride |
-
1966
- 1966-02-07 US US525344A patent/US3407216A/en not_active Expired - Lifetime
-
1967
- 1967-01-23 GB GB3340/67A patent/GB1154124A/en not_active Expired
- 1967-01-27 NL NL6701396A patent/NL6701396A/xx unknown
- 1967-02-06 ES ES337046A patent/ES337046A1/es not_active Expired
- 1967-02-06 BE BE693711D patent/BE693711A/xx unknown
- 1967-02-06 DE DE1967C0041427 patent/DE1618204B1/de active Pending
- 1967-02-06 FR FR93770A patent/FR1510451A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6701396A (el) | 1967-08-08 |
| FR1510451A (fr) | 1968-01-19 |
| DE1618204B1 (de) | 1972-05-04 |
| ES337046A1 (es) | 1968-01-16 |
| GB1154124A (en) | 1969-06-04 |
| US3407216A (en) | 1968-10-22 |