FR2386512A1 - Procede de purification de l'acide terephtalique - Google Patents
Procede de purification de l'acide terephtaliqueInfo
- Publication number
- FR2386512A1 FR2386512A1 FR7809720A FR7809720A FR2386512A1 FR 2386512 A1 FR2386512 A1 FR 2386512A1 FR 7809720 A FR7809720 A FR 7809720A FR 7809720 A FR7809720 A FR 7809720A FR 2386512 A1 FR2386512 A1 FR 2386512A1
- Authority
- FR
- France
- Prior art keywords
- terephthalic acid
- purification process
- acid purification
- dispersion
- sheets
- Prior art date
- 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.)
- Withdrawn
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)
Abstract
L'invention est relative à un procédé de purification de l'acide téraphtalique. Selon l'invention on soumet une dispersion à une division très efficace des particules avant son entrée dans un dispositif de chauffage en aval duquel ou dans lequel on fait agir sur la dispersion un gaz contenant de l'oxygène. Le procédé permet d'obtenir un acide téréphtalique très pur répondant à toutes les exigences notamment pour la fabrication de fibres et de feuilles incolores à point de fusion élevé.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2714985A DE2714985C2 (de) | 1977-04-04 | 1977-04-04 | Verfahren zur Reinigung von Terephthalsäure |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2386512A1 true FR2386512A1 (fr) | 1978-11-03 |
Family
ID=6005603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7809720A Withdrawn FR2386512A1 (fr) | 1977-04-04 | 1978-04-03 | Procede de purification de l'acide terephtalique |
Country Status (9)
Country | Link |
---|---|
US (1) | US4340752A (fr) |
JP (1) | JPS53127431A (fr) |
BE (1) | BE865682A (fr) |
DE (1) | DE2714985C2 (fr) |
FR (1) | FR2386512A1 (fr) |
GB (1) | GB1598868A (fr) |
IT (1) | IT7848696A0 (fr) |
NL (1) | NL7803593A (fr) |
RO (1) | RO74500A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4391985A (en) * | 1981-11-16 | 1983-07-05 | Eastman Kodak Company | Process for the separation of isophthalic acid from terephthalic acid |
JPS59104345A (ja) * | 1982-12-03 | 1984-06-16 | Kuraray Yuka Kk | 直接重合用に適したテレフタル酸の製造方法 |
US4540493A (en) * | 1983-11-30 | 1985-09-10 | Ecolochem, Inc. | Process for treating wash water from the manufacture of terephthalic acid |
US4675108A (en) * | 1983-11-30 | 1987-06-23 | Ecolochem, Inc. | Apparatus for treating wash water from the manufacture of terephthalic acid |
DE3636478C2 (de) * | 1986-10-27 | 1996-10-31 | Schloemann Siemag Ag | Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil |
US4939297A (en) * | 1989-06-05 | 1990-07-03 | Eastman Kodak Company | Extraction process for removal of impurities from terephthalic acid filtrate |
US5175355A (en) * | 1991-04-12 | 1992-12-29 | Amoco Corporation | Improved process for recovery of purified terephthalic acid |
US6013835A (en) * | 1995-06-07 | 2000-01-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
US5929274A (en) * | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
US6054610A (en) * | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
US5767311A (en) * | 1995-06-07 | 1998-06-16 | Glitsch International, Inc. | Method and apparatus for preparing purified terephtalic acid |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE723859A (fr) * | 1968-11-14 | 1969-04-16 | ||
DE2004274A1 (de) * | 1969-03-07 | 1970-09-24 | Mobil Oil Corp., New York, N.Y. (V.St.A.) | Verfahren zur Umkristallisation von Benzolcarbonsäuren |
US3679741A (en) * | 1970-07-23 | 1972-07-25 | Mobil Oil Corp | Purifying and milling terephthalic acid |
DE2216208A1 (de) * | 1971-04-03 | 1972-10-26 | Maruzen Oil Co., Ltd.; Matsuyama Petrochemicals Inc.; Osaka (Japan) | Verfahren zur kontinuierlichen Herstellung von Terephthalsäure von hoher Reinheit |
DE2220273A1 (de) * | 1971-04-26 | 1972-11-09 | Maruzen Oil Co., Ltd.; Matsuyama Petrochemicals Inc.; Osaka (Japan) | Verfahren zur Herstellung von hochreiner Terephthalsäure |
FR2328688A1 (fr) * | 1975-10-24 | 1977-05-20 | Standard Oil Co | Procede pour l'oxydation secondaire d'un effluent liquide provenant de l'oxydation primaire de meta- ou para-xylene |
JPS52108946A (en) * | 1976-03-05 | 1977-09-12 | Kuraray Yuka Kk | Production of purified terephthalic acid |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1413057A (fr) * | 1963-01-16 | 1965-10-08 | Inst Francais Du Petrole | Procédé de fabrication d'acide téréphtalique |
NL128444C (fr) * | 1963-10-10 |
-
1977
- 1977-04-04 DE DE2714985A patent/DE2714985C2/de not_active Expired
-
1978
- 1978-03-21 US US05/888,612 patent/US4340752A/en not_active Expired - Lifetime
- 1978-03-31 IT IT7848696A patent/IT7848696A0/it unknown
- 1978-04-03 RO RO7893704A patent/RO74500A/fr unknown
- 1978-04-03 FR FR7809720A patent/FR2386512A1/fr not_active Withdrawn
- 1978-04-03 GB GB12881/78A patent/GB1598868A/en not_active Expired
- 1978-04-03 JP JP3819278A patent/JPS53127431A/ja active Pending
- 1978-04-04 NL NL7803593A patent/NL7803593A/xx not_active Application Discontinuation
- 1978-04-04 BE BE186561A patent/BE865682A/fr unknown
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE723859A (fr) * | 1968-11-14 | 1969-04-16 | ||
DE2004274A1 (de) * | 1969-03-07 | 1970-09-24 | Mobil Oil Corp., New York, N.Y. (V.St.A.) | Verfahren zur Umkristallisation von Benzolcarbonsäuren |
FR2037551A5 (fr) * | 1969-03-07 | 1970-12-31 | Mobil Oil Corp | |
US3679741A (en) * | 1970-07-23 | 1972-07-25 | Mobil Oil Corp | Purifying and milling terephthalic acid |
DE2216208A1 (de) * | 1971-04-03 | 1972-10-26 | Maruzen Oil Co., Ltd.; Matsuyama Petrochemicals Inc.; Osaka (Japan) | Verfahren zur kontinuierlichen Herstellung von Terephthalsäure von hoher Reinheit |
GB1350874A (en) * | 1971-04-03 | 1974-04-24 | Maruzen Oil Co Ltd | Continuous production of terephthalic acid |
DE2220273A1 (de) * | 1971-04-26 | 1972-11-09 | Maruzen Oil Co., Ltd.; Matsuyama Petrochemicals Inc.; Osaka (Japan) | Verfahren zur Herstellung von hochreiner Terephthalsäure |
FR2134559A1 (fr) * | 1971-04-26 | 1972-12-08 | Maruzen Oil Co Ltd | |
FR2328688A1 (fr) * | 1975-10-24 | 1977-05-20 | Standard Oil Co | Procede pour l'oxydation secondaire d'un effluent liquide provenant de l'oxydation primaire de meta- ou para-xylene |
JPS52108946A (en) * | 1976-03-05 | 1977-09-12 | Kuraray Yuka Kk | Production of purified terephthalic acid |
Non-Patent Citations (1)
Title |
---|
ABJP/78 * |
Also Published As
Publication number | Publication date |
---|---|
RO74500A (fr) | 1981-01-30 |
JPS53127431A (en) | 1978-11-07 |
IT7848696A0 (it) | 1978-03-31 |
GB1598868A (en) | 1981-09-23 |
DE2714985A1 (de) | 1978-10-05 |
DE2714985C2 (de) | 1982-05-06 |
NL7803593A (nl) | 1978-10-06 |
US4340752A (en) | 1982-07-20 |
BE865682A (fr) | 1978-10-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |