BE699770A - - Google Patents
Info
- Publication number
- BE699770A BE699770A BE699770DA BE699770A BE 699770 A BE699770 A BE 699770A BE 699770D A BE699770D A BE 699770DA BE 699770 A BE699770 A BE 699770A
- 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
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/353—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by isomerisation; by change of size of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR65208A FR1489787A (fr) | 1966-06-13 | 1966-06-13 | Procédé de traitement des eaux résiduaires de la fabrication de l'anhydride phtalique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE699770A true BE699770A (de) | 1967-12-12 |
Family
ID=8610777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE699770D BE699770A (de) | 1966-06-13 | 1967-06-12 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3528997A (de) |
| BE (1) | BE699770A (de) |
| DE (1) | DE1618793B2 (de) |
| ES (1) | ES341720A1 (de) |
| FR (1) | FR1489787A (de) |
| GB (1) | GB1175079A (de) |
| NL (1) | NL6708129A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3865696A (en) * | 1969-07-16 | 1975-02-11 | Veba Chemie Ag | Recovery of citraconic acid anhydride by isomerization and vacuum distillation |
| DE2826346C2 (de) * | 1978-06-16 | 1985-02-07 | Davy McKee AG, 6000 Frankfurt | Verfahren zur Absaugung von Gasen und Dämpfen aus Vakuum-Destillationskolonnen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2942006A (en) * | 1957-07-01 | 1960-06-21 | Scient Design Co | Preparation of maleic anhydride by azeotropic distillation of maleic acid |
| US3007942A (en) * | 1957-11-19 | 1961-11-07 | Standard Oil Co | Resolution of trimesic and trimellitic acid |
| US3098095A (en) * | 1959-08-10 | 1963-07-16 | Standared Oil Company | Process for resolving aromatic polycarboxylic acids capable of forming intramolecular anhydrides |
| FR1453334A (fr) * | 1965-06-30 | 1966-06-03 | Pechiney Saint Gobain | Procédé d'extraction de l'acide citraconique |
-
1966
- 1966-06-13 FR FR65208A patent/FR1489787A/fr not_active Expired
-
1967
- 1967-06-12 BE BE699770D patent/BE699770A/xx unknown
- 1967-06-12 US US645496A patent/US3528997A/en not_active Expired - Lifetime
- 1967-06-12 NL NL6708129A patent/NL6708129A/xx unknown
- 1967-06-12 GB GB26941/67A patent/GB1175079A/en not_active Expired
- 1967-06-13 ES ES341720A patent/ES341720A1/es not_active Expired
- 1967-06-13 DE DE1967P0042354 patent/DE1618793B2/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE1618793A1 (de) | 1971-02-11 |
| US3528997A (en) | 1970-09-15 |
| ES341720A1 (es) | 1968-07-01 |
| DE1618793B2 (de) | 1976-06-16 |
| GB1175079A (en) | 1969-12-23 |
| NL6708129A (de) | 1967-12-14 |
| FR1489787A (fr) | 1967-07-28 |