BE865682A - Procede de purification de l'acide terephtalique - Google Patents
Procede de purification de l'acide terephtaliqueInfo
- Publication number
- BE865682A BE865682A BE186561A BE186561A BE865682A BE 865682 A BE865682 A BE 865682A BE 186561 A BE186561 A BE 186561A BE 186561 A BE186561 A BE 186561A BE 865682 A BE865682 A BE 865682A
- Authority
- BE
- Belgium
- Prior art keywords
- terephthalic acid
- purification process
- acid purification
- terephthalic
- purification
- Prior art date
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)
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 |
---|---|
BE865682A true BE865682A (fr) | 1978-10-04 |
Family
ID=6005603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE186561A BE865682A (fr) | 1977-04-04 | 1978-04-04 | Procede de purification de l'acide terephtalique |
Country Status (9)
Country | Link |
---|---|
US (1) | US4340752A (de) |
JP (1) | JPS53127431A (de) |
BE (1) | BE865682A (de) |
DE (1) | DE2714985C2 (de) |
FR (1) | FR2386512A1 (de) |
GB (1) | GB1598868A (de) |
IT (1) | IT7848696A0 (de) |
NL (1) | NL7803593A (de) |
RO (1) | RO74500A (de) |
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 |
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 |
US5929274A (en) * | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
US6013835A (en) * | 1995-06-07 | 2000-01-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
Family Cites Families (9)
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 (de) * | 1963-10-10 | |||
BE723859A (de) * | 1968-11-14 | 1969-04-16 | ||
US3660478A (en) * | 1969-03-07 | 1972-05-02 | Mobil Oil Corp | Cyclic recrystallization process |
US3679741A (en) * | 1970-07-23 | 1972-07-25 | Mobil Oil Corp | Purifying and milling terephthalic acid |
JPS5518698B1 (de) * | 1971-04-03 | 1980-05-21 | ||
JPS5328419B1 (de) * | 1971-04-26 | 1978-08-15 | ||
BE847474A (fr) * | 1975-10-24 | 1977-04-20 | Oxydation secondaire d'un effluent fluide de l'oxydation primaire du m-xylene ou du p-xylene, | |
JPS52108946A (en) * | 1976-03-05 | 1977-09-12 | Kuraray Yuka Kk | Production of purified terephthalic acid |
-
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 JP JP3819278A patent/JPS53127431A/ja active Pending
- 1978-04-03 FR FR7809720A patent/FR2386512A1/fr not_active Withdrawn
- 1978-04-03 RO RO7893704A patent/RO74500A/ro unknown
- 1978-04-03 GB GB12881/78A patent/GB1598868A/en not_active Expired
- 1978-04-04 BE BE186561A patent/BE865682A/xx unknown
- 1978-04-04 NL NL7803593A patent/NL7803593A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FR2386512A1 (fr) | 1978-11-03 |
RO74500A (ro) | 1981-01-30 |
GB1598868A (en) | 1981-09-23 |
NL7803593A (nl) | 1978-10-06 |
DE2714985C2 (de) | 1982-05-06 |
DE2714985A1 (de) | 1978-10-05 |
JPS53127431A (en) | 1978-11-07 |
US4340752A (en) | 1982-07-20 |
IT7848696A0 (it) | 1978-03-31 |
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