DE69010165D1 - Verfahren zur Reinigung von 3,4,5,6-Tetrahydrophthalsäureanhydrid. - Google Patents
Verfahren zur Reinigung von 3,4,5,6-Tetrahydrophthalsäureanhydrid.Info
- Publication number
- DE69010165D1 DE69010165D1 DE69010165T DE69010165T DE69010165D1 DE 69010165 D1 DE69010165 D1 DE 69010165D1 DE 69010165 T DE69010165 T DE 69010165T DE 69010165 T DE69010165 T DE 69010165T DE 69010165 D1 DE69010165 D1 DE 69010165D1
- Authority
- DE
- Germany
- Prior art keywords
- purification
- tetrahydrophthalic anhydride
- tetrahydrophthalic
- anhydride
- 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 - Fee Related
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
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/083—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid anhydrides
-
- 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
- C07C51/493—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification whereby carboxylic acid esters are formed
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)
- Furan Compounds (AREA)
- Indole Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1326698A JP2533391B2 (ja) | 1989-12-15 | 1989-12-15 | 3,4,5,6―テトラヒドロ無水フタル酸の精製方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69010165D1 true DE69010165D1 (de) | 1994-07-28 |
DE69010165T2 DE69010165T2 (de) | 1994-10-06 |
Family
ID=18190671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69010165T Expired - Fee Related DE69010165T2 (de) | 1989-12-15 | 1990-12-14 | Verfahren zur Reinigung von 3,4,5,6-Tetrahydrophthalsäureanhydrid. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5155231A (de) |
EP (1) | EP0432797B1 (de) |
JP (1) | JP2533391B2 (de) |
CH (1) | CH680294A5 (de) |
DE (1) | DE69010165T2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10002877A1 (de) * | 2000-01-24 | 2001-10-18 | Bayer Ag | Polycarbonsäuren, Verfahren zu deren Herstellung und deren Verwendung zur Behandlung von Cellulosefasern oder daraus hergestellten Textil- oder Papiermaterialien |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5013790A (de) * | 1973-06-08 | 1975-02-13 | ||
JPS5854144B2 (ja) * | 1977-10-29 | 1983-12-02 | 新日本理化株式会社 | 3,4,5,6−テトラヒドロ無水フタル酸の製造方法 |
DE2948414C2 (de) * | 1979-12-01 | 1985-10-17 | New Japan Chemical Co. Ltd., Kyoto | Verfahren zur Herstellung von 3,4,5,6-Tetrahydrophthalsäureanhydriden und deren Derivate |
-
1989
- 1989-12-15 JP JP1326698A patent/JP2533391B2/ja not_active Expired - Fee Related
-
1990
- 1990-10-29 US US07/604,504 patent/US5155231A/en not_active Expired - Fee Related
- 1990-11-07 CH CH3540/90A patent/CH680294A5/de not_active IP Right Cessation
- 1990-12-14 EP EP90124210A patent/EP0432797B1/de not_active Expired - Lifetime
- 1990-12-14 DE DE69010165T patent/DE69010165T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69010165T2 (de) | 1994-10-06 |
EP0432797A3 (en) | 1992-03-11 |
JPH03188073A (ja) | 1991-08-16 |
US5155231A (en) | 1992-10-13 |
JP2533391B2 (ja) | 1996-09-11 |
CH680294A5 (de) | 1992-07-31 |
EP0432797B1 (de) | 1994-06-22 |
EP0432797A2 (de) | 1991-06-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69023093D1 (de) | Verfahren zur Reinigung von Wasser. | |
DE69116623D1 (de) | Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan | |
DE69022540D1 (de) | Verfahren zur 1,2 Dehydrogenierung der Azasteroiden. | |
DE69003423D1 (de) | Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan. | |
DE69004229D1 (de) | Verfahren zur Reinigung von 1,1-Dichlor-1-fluorethan. | |
DE59002817D1 (de) | Verfahren zur kontinuierlichen Reinigung von Caprolactam. | |
DE59003791D1 (de) | Verfahren zur Herstellung von 1,3,3-Trimethyl-5-oxo-cyclohexan-carbonitril. | |
DE59200262D1 (de) | Verfahren zur Reinigung von Bisphenolen. | |
DE69016879D1 (de) | Verfahren zur Reinigung von N-Phosphonmethylglyzin. | |
DE69209256D1 (de) | Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan | |
DE69008825D1 (de) | Verfahren zur Reinigung von Phagen-DNA. | |
DE69016382D1 (de) | Verfahren zur Herstellung von Polyimiden. | |
DE69300901D1 (de) | Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan. | |
DE69304638D1 (de) | Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan | |
DE68923912D1 (de) | Verfahren zur Herstellung von 3-Pyrrolidinol. | |
DE68915584D1 (de) | Verfahren zur Herstellung von Difruktose-Dianhydrid III. | |
DE69021180D1 (de) | Verfahren zur Herstellung von Terpolymere von Maleinsäureanhydrid. | |
DE68908801D1 (de) | Verfahren zur Reinigung von Dihydroxyphenolen. | |
DE59204390D1 (de) | Verfahren zur Reinigung von Indigo. | |
DE69005655D1 (de) | Verfahren zur Herstellung von Maleinsäureanhydrid. | |
DE69405189T2 (de) | Verfahren zur Reinigung von 1,1,1,2-Tetrafluorethan | |
DE69428925D1 (de) | Verfahren zur Reinigung von 1,1,1,2,2-Pentafluoroethan | |
DE69019910D1 (de) | Verfahren zur Herstellung von 1-Indanonderivaten. | |
DE69010165D1 (de) | Verfahren zur Reinigung von 3,4,5,6-Tetrahydrophthalsäureanhydrid. | |
DE59004416D1 (de) | Verfahren zum Reinigen von Dimethylterephthalat. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |