FR2459220B1 - - Google Patents
Info
- Publication number
- FR2459220B1 FR2459220B1 FR7915964A FR7915964A FR2459220B1 FR 2459220 B1 FR2459220 B1 FR 2459220B1 FR 7915964 A FR7915964 A FR 7915964A FR 7915964 A FR7915964 A FR 7915964A FR 2459220 B1 FR2459220 B1 FR 2459220B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7915964A FR2459220A1 (fr) | 1979-06-21 | 1979-06-21 | Procede de purification de l'acide terephtalique |
| US06/147,283 US4263452A (en) | 1979-06-12 | 1980-05-06 | Process for purifying terephthalic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7915964A FR2459220A1 (fr) | 1979-06-21 | 1979-06-21 | Procede de purification de l'acide terephtalique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2459220A1 FR2459220A1 (fr) | 1981-01-09 |
| FR2459220B1 true FR2459220B1 (enExample) | 1983-09-16 |
Family
ID=9226932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7915964A Granted FR2459220A1 (fr) | 1979-06-12 | 1979-06-21 | Procede de purification de l'acide terephtalique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2459220A1 (enExample) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2100033A1 (en) * | 1971-01-02 | 1972-07-06 | Badische Anilin- & Soda-Fabrik Ag, 6700 Ludwigshafen | Terephthalic acid purificn - by catalytic hydrogenation |
| FR2145026A5 (en) * | 1971-07-06 | 1973-02-16 | Inst Francais Du Petrole | Pure terephthalic acid prodn - by hydrogenating ammonium terephthalate soln and acidifying |
-
1979
- 1979-06-21 FR FR7915964A patent/FR2459220A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2459220A1 (fr) | 1981-01-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |