DE69511287D1 - Verfahren zur reinigung von aromatischen bicarbonsäuren - Google Patents
Verfahren zur reinigung von aromatischen bicarbonsäurenInfo
- Publication number
- DE69511287D1 DE69511287D1 DE69511287T DE69511287T DE69511287D1 DE 69511287 D1 DE69511287 D1 DE 69511287D1 DE 69511287 T DE69511287 T DE 69511287T DE 69511287 T DE69511287 T DE 69511287T DE 69511287 D1 DE69511287 D1 DE 69511287D1
- Authority
- DE
- Germany
- Prior art keywords
- bicarbonic
- acids
- purifying aromatic
- purifying
- aromatic
- 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.)
- Expired - Lifetime
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
-
- 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)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/362,334 US5481033A (en) | 1994-12-22 | 1994-12-22 | Purification process for aromatic dicarboxylic acids |
PCT/US1995/015554 WO1996019432A1 (en) | 1994-12-22 | 1995-12-04 | Purification process for aromatic dicarboxylic acids |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69511287D1 true DE69511287D1 (de) | 1999-09-09 |
DE69511287T2 DE69511287T2 (de) | 2000-03-02 |
Family
ID=23425671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69511287T Expired - Lifetime DE69511287T2 (de) | 1994-12-22 | 1995-12-04 | Verfahren zur reinigung von aromatischen bicarbonsäuren |
Country Status (5)
Country | Link |
---|---|
US (1) | US5481033A (de) |
EP (1) | EP0799179B1 (de) |
JP (1) | JP3485931B2 (de) |
DE (1) | DE69511287T2 (de) |
WO (1) | WO1996019432A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW446698B (en) * | 1996-02-05 | 2001-07-21 | Mitsubishi Gas Chemical Co | Process for the production of high-purity naphthalenedicarboxylic acid |
US5859294A (en) * | 1996-02-05 | 1999-01-12 | Mitsubishi Gas Chemical Corporation, Inc. | Process for the production of high-purity naphthalenedicarboxylic acid |
US6245942B1 (en) * | 1999-02-26 | 2001-06-12 | Henkel Corporation | Reduction of the carbonyl value of carboxylic acids and derivatives of carboxylic acids and derivatives of carboxylic acids |
EP1055660B1 (de) | 1999-05-26 | 2003-05-21 | Mitsubishi Gas Chemical Company, Inc. | Verfahren zur Herstellung einer hochreinen aromatischen Polycarbonsäure |
US6426431B1 (en) * | 1999-08-30 | 2002-07-30 | Mossi & Ghisolfi Overseas S.A. | Method for increasing the yield of 2,6 -NDA |
US20050288527A1 (en) * | 2004-06-28 | 2005-12-29 | Cook William L | Method for preparing free-flowing crystalline material |
CN106588638B (zh) * | 2016-11-28 | 2018-12-07 | 钱胜文 | 一种用纺织碱溶废水处理后的白泥和涤纶废旧丝布降解后的粗pta精制对苯二甲酸的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2829160A (en) * | 1953-10-12 | 1958-04-01 | Chemstrand Corp | Purification of terephthalic acid |
US3654352A (en) * | 1969-04-02 | 1972-04-04 | Celanese Corp | Purification of terephthalic or isophthalic acid |
JPS49123306A (de) * | 1973-03-29 | 1974-11-26 | ||
US4317923A (en) * | 1979-08-23 | 1982-03-02 | Uop Inc. | Purification of dicarboxylic aromatic acids |
US5149867A (en) * | 1987-07-28 | 1992-09-22 | Hatco Corporation | Crystallization of water-insoluble dicarboxylic acid |
US5097066A (en) * | 1990-06-27 | 1992-03-17 | Amoco Corporation | Process for purification of aromatic dicarboxylic acids |
EP0636600B1 (de) * | 1993-02-12 | 1998-05-20 | Mitsui Chemicals, Inc. | Verfahren zur reinigung aromatischer dicarbonsäuren |
-
1994
- 1994-12-22 US US08/362,334 patent/US5481033A/en not_active Expired - Lifetime
-
1995
- 1995-12-04 DE DE69511287T patent/DE69511287T2/de not_active Expired - Lifetime
- 1995-12-04 WO PCT/US1995/015554 patent/WO1996019432A1/en active IP Right Grant
- 1995-12-04 EP EP95940879A patent/EP0799179B1/de not_active Expired - Lifetime
- 1995-12-04 JP JP51981196A patent/JP3485931B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP3485931B2 (ja) | 2004-01-13 |
WO1996019432A1 (en) | 1996-06-27 |
EP0799179B1 (de) | 1999-08-04 |
JPH10510835A (ja) | 1998-10-20 |
DE69511287T2 (de) | 2000-03-02 |
EP0799179A1 (de) | 1997-10-08 |
US5481033A (en) | 1996-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |