BE661854A - - Google Patents
Info
- Publication number
- BE661854A BE661854A BE661854DA BE661854A BE 661854 A BE661854 A BE 661854A BE 661854D A BE661854D A BE 661854DA BE 661854 A BE661854 A BE 661854A
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
-
- 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)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB76154A DE1220407B (de) | 1964-04-02 | 1964-04-02 | Verfahren zur Gewinnung von reinem Phthalsaeureanhydrid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE661854A true BE661854A (xx) | 1965-09-30 |
Family
ID=6978961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE661854D BE661854A (xx) | 1964-04-02 | 1965-03-31 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE661854A (xx) |
| DE (1) | DE1220407B (xx) |
| GB (1) | GB1094750A (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344929B (zh) * | 2017-06-26 | 2021-02-19 | 北京旭阳科技有限公司 | 从苯酐轻组份分离回收苯酐的方法 |
| CN110554122B (zh) * | 2018-05-30 | 2022-05-10 | 河北中煤旭阳能源有限公司 | 一种苯酐渣中邻苯二甲酸酐的纯度检测方法 |
| CN117986217B (zh) * | 2024-04-03 | 2024-06-04 | 南京化学试剂股份有限公司 | 一种苯酐原料处理方法 |
-
1964
- 1964-04-02 DE DEB76154A patent/DE1220407B/de active Pending
-
1965
- 1965-03-31 BE BE661854D patent/BE661854A/xx unknown
- 1965-04-01 GB GB1381565A patent/GB1094750A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1220407B (de) | 1966-07-07 |
| GB1094750A (en) | 1967-12-13 |