DE69114071D1 - Verfahren zur Herstellung von gereinigter Terephthalsäure. - Google Patents
Verfahren zur Herstellung von gereinigter Terephthalsäure.Info
- Publication number
- DE69114071D1 DE69114071D1 DE69114071T DE69114071T DE69114071D1 DE 69114071 D1 DE69114071 D1 DE 69114071D1 DE 69114071 T DE69114071 T DE 69114071T DE 69114071 T DE69114071 T DE 69114071T DE 69114071 D1 DE69114071 D1 DE 69114071D1
- Authority
- DE
- Germany
- Prior art keywords
- terephthalic acid
- carboxybenzaldehyde
- treatment
- stationary state
- purified terephthalic
- 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
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/14—Monocyclic dicarboxylic acids
- C07C63/15—Monocyclic dicarboxylic acids all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
- C07C63/26—1,4 - Benzenedicarboxylic acid
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2177965A JP2931048B2 (ja) | 1990-07-04 | 1990-07-04 | 高純度テレフタル酸の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69114071D1 true DE69114071D1 (de) | 1995-11-30 |
DE69114071T2 DE69114071T2 (de) | 1996-04-25 |
Family
ID=16040175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69114071T Expired - Fee Related DE69114071T2 (de) | 1990-07-04 | 1991-07-04 | Verfahren zur Herstellung von gereinigter Terephthalsäure. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5180849A (de) |
EP (1) | EP0469327B1 (de) |
JP (1) | JP2931048B2 (de) |
KR (1) | KR950000641B1 (de) |
CN (1) | CN1030316C (de) |
AT (1) | ATE129489T1 (de) |
CA (1) | CA2046163C (de) |
DE (1) | DE69114071T2 (de) |
RU (1) | RU2094424C1 (de) |
TW (1) | TW270113B (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996019430A1 (en) * | 1994-12-20 | 1996-06-27 | Engelhard Corporation | Improved process for the purification of aromatic polycarboxylic acids |
KR100264749B1 (ko) * | 1997-02-17 | 2000-09-01 | 나까니시 히로유끼 | 고순도 테레프탈산의 제조 방법 |
JP3864563B2 (ja) * | 1998-06-11 | 2007-01-10 | 三井化学株式会社 | 高純度テレフタル酸の製造方法 |
JP4934070B2 (ja) | 2008-01-24 | 2012-05-16 | 日東電工株式会社 | 光電気混載基板の製造方法 |
JP4934069B2 (ja) * | 2008-01-24 | 2012-05-16 | 日東電工株式会社 | 光電気混載基板の製造方法 |
JP4934068B2 (ja) * | 2008-01-24 | 2012-05-16 | 日東電工株式会社 | 光電気混載基板の製造方法およびそれによって得られた光電気混載基板 |
US8748479B2 (en) | 2012-06-22 | 2014-06-10 | Eastman Chemical Company | Process for purifying crude furan 2,5-dicarboxylic acid using hydrogenation |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1433325A (fr) * | 1963-03-29 | 1966-04-01 | Standard Oil Co | Perfectionnements à la purification de l'acide téréphtalique |
US4438279A (en) * | 1981-09-30 | 1984-03-20 | Standard Oil Company (Indiana) | Fiber-grade terephthalic acid recovered from the effluent from paraxylene oxidation in acetic acid and the catalytic hydrogenation of the oxidation effluent in the presence of metallic platinum family metals |
DD212162A3 (de) * | 1982-03-10 | 1984-08-01 | Petrolchemisches Kombinat | Verfahren zur reduktiven reinigung von terephthalsaeure |
US4791226A (en) * | 1983-06-23 | 1988-12-13 | Amoco Corporation | Catalyst and process for purification of crude terephthalic acid |
US4629715A (en) * | 1985-10-07 | 1986-12-16 | Amoco Corporation | Purification of terephthalic acid to relatively low levels of 4-carboxybenzaldehyde and catalyst therefor |
US4892972A (en) * | 1985-10-07 | 1990-01-09 | Amoco Corporation | Purification of crude terephthalic acid |
US4808751A (en) * | 1988-03-29 | 1989-02-28 | Amoco Corporation | Method for reactivating a group VIII noble metal catalyst for use in the purification of crude terephthalic acid |
US4833269A (en) * | 1988-08-05 | 1989-05-23 | Amoco Corporation | Method for purifying terephthalic acid recycle streams |
-
1990
- 1990-07-04 JP JP2177965A patent/JP2931048B2/ja not_active Expired - Fee Related
-
1991
- 1991-07-01 KR KR1019910011069A patent/KR950000641B1/ko not_active IP Right Cessation
- 1991-07-03 US US07/725,426 patent/US5180849A/en not_active Expired - Fee Related
- 1991-07-03 RU SU915001070A patent/RU2094424C1/ru active
- 1991-07-03 CA CA002046163A patent/CA2046163C/en not_active Expired - Fee Related
- 1991-07-04 DE DE69114071T patent/DE69114071T2/de not_active Expired - Fee Related
- 1991-07-04 TW TW080105213A patent/TW270113B/zh active
- 1991-07-04 CN CN91105304A patent/CN1030316C/zh not_active Expired - Lifetime
- 1991-07-04 AT AT91111118T patent/ATE129489T1/de not_active IP Right Cessation
- 1991-07-04 EP EP91111118A patent/EP0469327B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
RU2094424C1 (ru) | 1997-10-27 |
CN1030316C (zh) | 1995-11-22 |
EP0469327B1 (de) | 1995-10-25 |
KR920002512A (ko) | 1992-02-28 |
DE69114071T2 (de) | 1996-04-25 |
KR950000641B1 (ko) | 1995-01-26 |
EP0469327A3 (en) | 1992-07-22 |
US5180849A (en) | 1993-01-19 |
TW270113B (de) | 1996-02-11 |
CN1058583A (zh) | 1992-02-12 |
CA2046163A1 (en) | 1992-01-05 |
CA2046163C (en) | 1999-11-16 |
JPH0466553A (ja) | 1992-03-02 |
ATE129489T1 (de) | 1995-11-15 |
JP2931048B2 (ja) | 1999-08-09 |
EP0469327A2 (de) | 1992-02-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: MITSUI CHEMICALS, INC., TOKIO/TOKYO, JP |
|
8339 | Ceased/non-payment of the annual fee |