BE697832A - - Google Patents
Info
- Publication number
- BE697832A BE697832A BE697832DA BE697832A BE 697832 A BE697832 A BE 697832A BE 697832D A BE697832D A BE 697832DA BE 697832 A BE697832 A BE 697832A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58467166A | 1966-10-06 | 1966-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE697832A true BE697832A (el) | 1967-10-02 |
Family
ID=24338334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE697832D BE697832A (el) | 1966-10-06 | 1967-04-28 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3462461A (el) |
| BE (1) | BE697832A (el) |
| DE (1) | DE1618874A1 (el) |
| ES (1) | ES340196A1 (el) |
| GB (1) | GB1117839A (el) |
| NL (1) | NL6705737A (el) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4008255A (en) * | 1973-03-17 | 1977-02-15 | Basf Aktiengesellschaft | Recovery of phthalic anhydride |
| AU564712B2 (en) * | 1983-03-16 | 1987-08-20 | Chemische Werke Huls A.G. | Method for separating naphthoquinone from phthalic anhydride |
| DE3502682A1 (de) * | 1985-01-26 | 1986-07-31 | Hüls AG, 4370 Marl | Verfahren zur entfernung von naphthochinon aus phthalsaeureanhydrid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2033131A (en) * | 1931-07-07 | 1936-03-10 | Ellis Foster Co | Reaction product and process of making same |
| US2510852A (en) * | 1948-03-19 | 1950-06-06 | Allied Chem & Dye Corp | Process for purifying phthalic anhydride |
-
1966
- 1966-10-06 US US584671A patent/US3462461A/en not_active Expired - Lifetime
-
1967
- 1967-03-29 GB GB14293/67A patent/GB1117839A/en not_active Expired
- 1967-04-13 DE DE19671618874 patent/DE1618874A1/de active Pending
- 1967-04-19 ES ES340196A patent/ES340196A1/es not_active Expired
- 1967-04-24 NL NL6705737A patent/NL6705737A/xx unknown
- 1967-04-28 BE BE697832D patent/BE697832A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3462461A (en) | 1969-08-19 |
| ES340196A1 (es) | 1969-05-16 |
| NL6705737A (el) | 1968-04-08 |
| DE1618874A1 (de) | 1972-04-13 |
| GB1117839A (en) | 1968-06-26 |