BE692063A - - Google Patents
Info
- Publication number
- BE692063A BE692063A BE692063DA BE692063A BE 692063 A BE692063 A BE 692063A BE 692063D A BE692063D A BE 692063DA BE 692063 A BE692063 A BE 692063A
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US517911A US3364235A (en) | 1966-01-03 | 1966-01-03 | Phthalic anhydride color inhibition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE692063A true BE692063A (es) | 1967-05-29 |
Family
ID=24061738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE692063D BE692063A (es) | 1966-01-03 | 1966-12-30 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3364235A (es) |
| BE (1) | BE692063A (es) |
| DE (1) | DE1593481A1 (es) |
| ES (1) | ES335640A1 (es) |
| FR (1) | FR1507095A (es) |
| GB (1) | GB1126897A (es) |
| NL (1) | NL6700015A (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3428423A (en) * | 1966-06-07 | 1969-02-18 | Chem Process Corp | Method for the removal and recovery of promoter from crude phthalic anhydride made by the vapor phase oxidation of orthoxylene in the presence of promoter |
| WO2020256898A1 (en) | 2019-06-19 | 2020-12-24 | Boston Scientific Scimed, Inc. | Balloon surface photoacoustic pressure wave generation to disrupt vascular lesions |
| CN114989118A (zh) * | 2022-06-29 | 2022-09-02 | 安徽雪郎生物科技股份有限公司 | 一种羧酸酐类的颜色稳定剂及其制备方法和应用 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2510852A (en) * | 1948-03-19 | 1950-06-06 | Allied Chem & Dye Corp | Process for purifying phthalic anhydride |
-
1966
- 1966-01-03 US US517911A patent/US3364235A/en not_active Expired - Lifetime
- 1966-12-20 GB GB56927/66A patent/GB1126897A/en not_active Expired
- 1966-12-23 DE DE19661593481 patent/DE1593481A1/de active Pending
- 1966-12-30 BE BE692063D patent/BE692063A/xx unknown
- 1966-12-31 ES ES0335640A patent/ES335640A1/es not_active Expired
-
1967
- 1967-01-02 FR FR89683A patent/FR1507095A/fr not_active Expired
- 1967-01-05 NL NL6700015A patent/NL6700015A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1507095A (fr) | 1967-12-22 |
| GB1126897A (en) | 1968-09-11 |
| US3364235A (en) | 1968-01-16 |
| DE1593481A1 (de) | 1970-07-23 |
| NL6700015A (es) | 1967-07-04 |
| ES335640A1 (es) | 1967-12-01 |