DE4397599C2 - Verfahren zur Herstellung von hochreinen Isomeren der Benzoldicarbonsäure - Google Patents
Verfahren zur Herstellung von hochreinen Isomeren der BenzoldicarbonsäureInfo
- Publication number
- DE4397599C2 DE4397599C2 DE4397599A DE4397599A DE4397599C2 DE 4397599 C2 DE4397599 C2 DE 4397599C2 DE 4397599 A DE4397599 A DE 4397599A DE 4397599 A DE4397599 A DE 4397599A DE 4397599 C2 DE4397599 C2 DE 4397599C2
- Authority
- DE
- Germany
- Prior art keywords
- oxidation
- post
- ppm
- oxidation step
- concentration
- 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
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU93046190/04A RU2047594C1 (ru) | 1993-09-28 | 1993-09-28 | Способ получения изомеров бензолдикарбоновых кислот с высокой степенью очистки |
| RU93046191/04A RU2047595C1 (ru) | 1993-09-28 | 1993-09-28 | Способ получения изомеров фталевых кислот с высокой степенью чистоты |
| PCT/KR1993/000106 WO1995009143A1 (en) | 1993-09-28 | 1993-11-30 | Production method of high purity isomers of benzenedicarboxylic acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4397599C2 true DE4397599C2 (de) | 1998-02-19 |
Family
ID=26653761
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4397599A Expired - Lifetime DE4397599C2 (de) | 1993-09-28 | 1993-11-30 | Verfahren zur Herstellung von hochreinen Isomeren der Benzoldicarbonsäure |
| DE4397599T Pending DE4397599T1 (de) | 1993-09-28 | 1993-11-30 | Verfahren zur Herstellung von hochreinen Isomeren von Benzoldikarbonsäure |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4397599T Pending DE4397599T1 (de) | 1993-09-28 | 1993-11-30 | Verfahren zur Herstellung von hochreinen Isomeren von Benzoldikarbonsäure |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US5359133A (enExample) |
| JP (1) | JP3009223B2 (enExample) |
| KR (1) | KR970000136B1 (enExample) |
| CN (1) | CN1050118C (enExample) |
| AU (1) | AU5576394A (enExample) |
| BE (1) | BE1008546A4 (enExample) |
| BG (1) | BG62324B1 (enExample) |
| BR (1) | BR9305996A (enExample) |
| CA (1) | CA2128719C (enExample) |
| DE (2) | DE4397599C2 (enExample) |
| ES (1) | ES2081265B1 (enExample) |
| FR (1) | FR2710638B1 (enExample) |
| GB (1) | GB2286588B (enExample) |
| IT (1) | IT1271011B (enExample) |
| MY (1) | MY108978A (enExample) |
| PL (1) | PL175685B1 (enExample) |
| RO (1) | RO113850B1 (enExample) |
| SA (1) | SA94140587B1 (enExample) |
| SK (1) | SK280582B6 (enExample) |
| TW (1) | TW307753B (enExample) |
| WO (1) | WO1995009143A1 (enExample) |
Families Citing this family (91)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929274A (en) * | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| WO1996041790A1 (en) * | 1995-06-08 | 1996-12-27 | Mogilev Order Of Lenin Proizvodstvennoe Obiedinenie 'khimvolokno' Named After V.I. Lenin | Method of obtaining isophthalic acid of monomeric purity |
| JP3757995B2 (ja) * | 1996-07-12 | 2006-03-22 | 三菱瓦斯化学株式会社 | 高純度イソフタル酸の製造方法 |
| JP3341620B2 (ja) * | 1997-03-19 | 2002-11-05 | 株式会社日立製作所 | 芳香族ポリカルボン酸の製造方法および装置 |
| KR100549107B1 (ko) * | 1999-04-28 | 2006-02-06 | 삼성토탈 주식회사 | 아로마틱 폴리카본산의 제조방법 |
| KR20000041506A (ko) | 1998-12-22 | 2000-07-15 | 유현식 | 아로마틱폴리카본산의 제조방법 |
| US6180822B1 (en) | 1998-12-22 | 2001-01-30 | Samsung General Chemical Co., Ltd. | Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with carbon dioxide containing gas |
| US6194607B1 (en) † | 1998-12-22 | 2001-02-27 | Samsung General Chemicals Co., Ltd. | Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic hydrocarbons or partially oxidized intermediates thereof |
| US6399790B1 (en) | 1999-11-24 | 2002-06-04 | General Electric Company | Method for oxidation of xylene derivatives |
| US6465685B1 (en) | 1999-11-24 | 2002-10-15 | General Electric Company | Method for oxidation of xylene derivatives |
| ATE311355T1 (de) | 2000-01-18 | 2005-12-15 | Inca Internat S P A | Oxidation von alkylaromaten zu aromatischen säuren in wässrigem medium |
| US6649773B2 (en) | 2002-03-22 | 2003-11-18 | General Electric Company | Method for the manufacture of halophthalic acids and anhydrides |
| US6657068B2 (en) | 2002-03-22 | 2003-12-02 | General Electric Company | Liquid phase oxidation of halogenated ortho-xylenes |
| US6657067B2 (en) | 2002-03-22 | 2003-12-02 | General Electric Company | Method for the manufacture of chlorophthalic anhydride |
| AU2003293252A1 (en) * | 2002-12-09 | 2004-06-30 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| BR0316462A (pt) * | 2002-12-09 | 2005-10-11 | Eastman Chem Co | Processos para reduzir uma suspensão de ácido carboxìlico purificado, para purificar um produto de oxidação em estágios, para produzir um produto de ácido carboxìlico purificado, e, suspensão de ácido carboxìlico purificado |
| US7161027B2 (en) * | 2002-12-09 | 2007-01-09 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| JP2006509044A (ja) * | 2002-12-09 | 2006-03-16 | イーストマン ケミカル カンパニー | 粗製カルボン酸スラリーの精製方法 |
| RU2341512C2 (ru) * | 2002-12-09 | 2008-12-20 | Истман Кемикал Компани | Способ очистки суспензии сырой карбоновой кислоты |
| US7074954B2 (en) * | 2002-12-09 | 2006-07-11 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| US7132566B2 (en) * | 2003-09-22 | 2006-11-07 | Eastman Chemical Company | Process for the purification of a crude carboxylic acid slurry |
| US7546747B2 (en) * | 2004-01-15 | 2009-06-16 | Eastman Chemical Company | Process for production of a dried carboxylic acid cake suitable for use in polyester production |
| US7348452B2 (en) * | 2004-04-22 | 2008-03-25 | Eastman Chemical Company | Liquid phase oxidation of P-xylene to terephthalic acid in the presence of a catalyst system containing nickel, manganese, and bromine atoms |
| US20050283022A1 (en) * | 2004-06-18 | 2005-12-22 | Sheppard Ronald B | Filtrate preparation process for terephthalic acid filtrate treatment |
| US7541489B2 (en) | 2004-06-30 | 2009-06-02 | Sabic Innovative Plastics Ip B.V. | Method of making halophthalic acids and halophthalic anhydrides |
| US7371894B2 (en) * | 2004-09-02 | 2008-05-13 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7741515B2 (en) | 2004-09-02 | 2010-06-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7361784B2 (en) | 2004-09-02 | 2008-04-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7608732B2 (en) | 2005-03-08 | 2009-10-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7563926B2 (en) | 2004-09-02 | 2009-07-21 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7572936B2 (en) | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7582793B2 (en) | 2004-09-02 | 2009-09-01 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7507857B2 (en) | 2004-09-02 | 2009-03-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7615663B2 (en) * | 2004-09-02 | 2009-11-10 | Eastman Chemical Company | Optimized production of aromatic dicarboxylic acids |
| US7910769B2 (en) | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7399882B2 (en) | 2004-09-02 | 2008-07-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7390921B2 (en) | 2004-09-02 | 2008-06-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7572932B2 (en) | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7692037B2 (en) | 2004-09-02 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7568361B2 (en) | 2004-09-02 | 2009-08-04 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7482482B2 (en) | 2004-09-02 | 2009-01-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7504535B2 (en) | 2004-09-02 | 2009-03-17 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7692036B2 (en) | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| WO2006028817A2 (en) * | 2004-09-02 | 2006-03-16 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7608733B2 (en) | 2004-09-02 | 2009-10-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7381836B2 (en) | 2004-09-02 | 2008-06-03 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7495125B2 (en) | 2004-09-02 | 2009-02-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7683210B2 (en) | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7589231B2 (en) | 2004-09-02 | 2009-09-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7586000B2 (en) | 2004-09-02 | 2009-09-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US20060205974A1 (en) * | 2005-03-08 | 2006-09-14 | Lavoie Gino G | Processes for producing aromatic dicarboxylic acids |
| US7550627B2 (en) * | 2005-03-08 | 2009-06-23 | Eastman Chemical Company | Processes for producing aromatic dicarboxylic acids |
| US7834208B2 (en) * | 2005-05-19 | 2010-11-16 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
| US7919652B2 (en) * | 2005-05-19 | 2011-04-05 | Eastman Chemical Company | Process to produce an enriched composition through the use of a catalyst removal zone and an enrichment zone |
| US7741516B2 (en) * | 2005-05-19 | 2010-06-22 | Eastman Chemical Company | Process to enrich a carboxylic acid composition |
| US7557243B2 (en) * | 2005-05-19 | 2009-07-07 | Eastman Chemical Company | Enriched terephthalic acid composition |
| US7897809B2 (en) * | 2005-05-19 | 2011-03-01 | Eastman Chemical Company | Process to produce an enrichment feed |
| US20060264656A1 (en) * | 2005-05-19 | 2006-11-23 | Fujitsu Limited | Enrichment process using compounds useful in a polyester process |
| US7432395B2 (en) * | 2005-05-19 | 2008-10-07 | Eastman Chemical Company | Enriched carboxylic acid composition |
| US7884231B2 (en) * | 2005-05-19 | 2011-02-08 | Eastman Chemical Company | Process to produce an enriched composition |
| US7880031B2 (en) * | 2005-05-19 | 2011-02-01 | Eastman Chemical Company | Process to produce an enrichment feed |
| US20060264662A1 (en) * | 2005-05-19 | 2006-11-23 | Gibson Philip E | Esterification of an enriched composition |
| US20060264664A1 (en) * | 2005-05-19 | 2006-11-23 | Parker Kenny R | Esterification of an exchange solvent enriched composition |
| US7884232B2 (en) | 2005-06-16 | 2011-02-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US20070155987A1 (en) * | 2006-01-04 | 2007-07-05 | O'meadhra Ruairi S | Oxidative digestion with optimized agitation |
| US7358389B2 (en) | 2006-01-04 | 2008-04-15 | Eastman Chemical Company | Oxidation system employing internal structure for enhanced hydrodynamics |
| US7355068B2 (en) | 2006-01-04 | 2008-04-08 | Eastman Chemical Company | Oxidation system with internal secondary reactor |
| US20070179312A1 (en) * | 2006-02-02 | 2007-08-02 | O'meadhra Ruairi Seosamh | Process for the purification of a crude carboxylic axid slurry |
| US7326807B2 (en) * | 2006-03-01 | 2008-02-05 | Eastman Chemical Company | Polycarboxylic acid production system with enhanced heating for oxidative digestion |
| US7772424B2 (en) * | 2006-03-01 | 2010-08-10 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion |
| US7326808B2 (en) * | 2006-03-01 | 2008-02-05 | Eastman Chemical Company | Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system |
| US20070208194A1 (en) | 2006-03-01 | 2007-09-06 | Woodruff Thomas E | Oxidation system with sidedraw secondary reactor |
| US7501537B2 (en) * | 2006-03-01 | 2009-03-10 | Eastman Chemical Company | Polycarboxylic acid production system employing oxidative digestion with reduced or eliminated upstream liquor exchange |
| US7393973B2 (en) * | 2006-03-01 | 2008-07-01 | Eastman Chemical Company | Polycarboxylic acid production system with enhanced residence time distribution for oxidative digestion |
| US7816556B2 (en) * | 2006-03-01 | 2010-10-19 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced multistage oxidative digestion |
| US7420082B2 (en) * | 2006-03-01 | 2008-09-02 | Eastman Chemical Company | Polycarboxylic acid production system employing hot liquor removal downstream of oxidative digestion |
| US7888529B2 (en) * | 2006-03-01 | 2011-02-15 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
| CN101636374A (zh) * | 2006-12-21 | 2010-01-27 | 纳幕尔杜邦公司 | 用于制备卤代芳香二酸的方法 |
| US8455680B2 (en) | 2008-01-15 | 2013-06-04 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
| US8614350B2 (en) | 2008-01-15 | 2013-12-24 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
| RU2014131232A (ru) * | 2011-12-29 | 2016-02-20 | Юоп Ллк | Способ получения терефталевой кислоты |
| US8927764B2 (en) | 2011-12-29 | 2015-01-06 | Uop Llc | Process for producing terephthalic acid |
| US9085522B2 (en) | 2011-12-29 | 2015-07-21 | Uop Llc | Process for producing terephthalic acid |
| US9024059B2 (en) | 2011-12-29 | 2015-05-05 | Uop Llc | Process for producing terephthalic acid |
| US9045408B2 (en) | 2011-12-29 | 2015-06-02 | Uop Llc | Process for oxidizing alkyl-aromatic compounds |
| US9156765B2 (en) | 2011-12-29 | 2015-10-13 | Uop Llc | Process for oxidizing alkyl-aromatic compounds |
| US9212121B2 (en) | 2013-09-24 | 2015-12-15 | Eastman Chemical Company | Processes for producing terephthalic acid |
| US9199906B2 (en) | 2013-09-24 | 2015-12-01 | Eastman Chemical Company | Processes for producing isophthalic acid |
| CN105688988B (zh) | 2014-12-16 | 2018-11-27 | 财团法人工业技术研究院 | 糠醛化合物的氧化反应催化剂及糠醛化合物的氧化方法 |
| CN107954850A (zh) * | 2017-11-02 | 2018-04-24 | 华东理工大学 | 间苯二甲酸的制备方法 |
| CN107963964A (zh) * | 2017-11-02 | 2018-04-27 | 华东理工大学 | 间苯二甲酸的制备方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1922775A1 (de) * | 1968-05-09 | 1969-11-13 | Atlantic Richfield Co | Verfahren zur Herstellung von aromatischen Dicarbonsaeuren |
| US3683017A (en) * | 1970-04-01 | 1972-08-08 | Fmc Corp | Oxidation of p-xylene and p-tolujc acid to terephthalic acid |
| DE2362295A1 (de) * | 1972-12-14 | 1974-06-20 | Halcon International Inc | Verfahren zur herstellung von isooder terephthalsaeure |
| DE2703161A1 (de) * | 1976-01-29 | 1977-08-11 | Mitsubishi Chem Ind | Verfahren zur herstellung von hochgradig reiner terephthalsaeure |
| US4772748A (en) * | 1982-12-10 | 1988-09-20 | Mitsubishi Chemical Industries Limited | Process for producing highly pure terephthalic acid |
| US4877900A (en) * | 1987-04-24 | 1989-10-31 | Mitsubishi Chemical Industries Limited | Process for preparing terephthalic acid of high quality |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1270030C2 (de) * | 1962-04-27 | 1973-07-19 | Verfahren zur reinigung von terephthalsaeure | |
| US3595908A (en) * | 1966-11-01 | 1971-07-27 | Inst Francais Du Petrole | Two-step oxidation of paraxylene for the production of terephthalic acid |
| DE1643721B1 (de) * | 1967-12-22 | 1971-10-21 | Basf Ag | Verfahren zur kontinuierlichen Herstellung von Benzoldicarbonsaeuren |
| JPS5518698B1 (enExample) * | 1971-04-03 | 1980-05-21 | ||
| US3920735A (en) * | 1973-05-21 | 1975-11-18 | Standard Oil Co | Zirconium enhanced activity of transition metal-bromine catalysis of di- and trimethyl benzene oxidation in liquid phase |
| GB2014985B (en) * | 1978-02-23 | 1982-12-08 | Asahi Chemical Ind | Purification of terephthalic acid |
| JPS5555138A (en) * | 1978-10-19 | 1980-04-22 | Mitsubishi Chem Ind Ltd | Preparation of highly pure terephthalic acid |
| DE3063298D1 (en) * | 1979-07-02 | 1983-07-07 | Ici Plc | Process for the preparation of terephthalic acid |
| US4334086A (en) * | 1981-03-16 | 1982-06-08 | Labofina S.A. | Production of terephthalic acid |
| JPS57200328A (en) * | 1981-06-03 | 1982-12-08 | Mitsubishi Chem Ind Ltd | Preparation of 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 |
| JPS60233032A (ja) * | 1984-05-04 | 1985-11-19 | Kuraray Yuka Kk | 直接重合用に適したテレフタル酸の製造法 |
| US4892970A (en) * | 1985-12-30 | 1990-01-09 | Amoco Corporation | Staged aromatics oxidation in aqueous systems |
| JPH0662495B2 (ja) * | 1986-05-16 | 1994-08-17 | 三菱化成株式会社 | 高純度テレフタル酸の製法 |
| US4786753A (en) * | 1987-05-18 | 1988-11-22 | Amoco Corporation | Oxidation process for the manufacture of aromatic acids from alkylaromatic compounds |
| US5132450A (en) * | 1990-06-25 | 1992-07-21 | Mitsubishi Gas Chemical Company, Inc. | Process for producing high purity isophthalic acid |
| CA2050866A1 (en) * | 1990-09-10 | 1992-03-11 | George F. Schaefer | Oxidation of dialkyl polyaromatics to dicarboxypolyaromatics |
| JP3231134B2 (ja) * | 1993-05-11 | 2001-11-19 | 住友化学工業株式会社 | 微粒子計測方法およびそのための装置 |
-
1993
- 1993-10-14 KR KR1019930021276A patent/KR970000136B1/ko not_active Expired - Lifetime
- 1993-10-27 US US08/141,738 patent/US5359133A/en not_active Expired - Lifetime
- 1993-11-30 JP JP6516877A patent/JP3009223B2/ja not_active Expired - Lifetime
- 1993-11-30 SK SK877-94A patent/SK280582B6/sk not_active IP Right Cessation
- 1993-11-30 GB GB9415915A patent/GB2286588B/en not_active Expired - Lifetime
- 1993-11-30 DE DE4397599A patent/DE4397599C2/de not_active Expired - Lifetime
- 1993-11-30 WO PCT/KR1993/000106 patent/WO1995009143A1/en not_active Ceased
- 1993-11-30 RO RO94-01218A patent/RO113850B1/ro unknown
- 1993-11-30 AU AU55763/94A patent/AU5576394A/en not_active Abandoned
- 1993-11-30 ES ES09450020A patent/ES2081265B1/es not_active Expired - Fee Related
- 1993-11-30 BR BR9305996A patent/BR9305996A/pt not_active IP Right Cessation
- 1993-11-30 DE DE4397599T patent/DE4397599T1/de active Pending
- 1993-11-30 CA CA002128719A patent/CA2128719C/en not_active Expired - Lifetime
- 1993-11-30 PL PL93308537A patent/PL175685B1/pl unknown
- 1993-12-30 MY MYPI93002874A patent/MY108978A/en unknown
-
1994
- 1994-01-12 CN CN94100679A patent/CN1050118C/zh not_active Expired - Lifetime
- 1994-01-20 TW TW083100473A patent/TW307753B/zh not_active IP Right Cessation
- 1994-03-06 SA SA94140587A patent/SA94140587B1/ar unknown
- 1994-07-20 BG BG98919A patent/BG62324B1/bg unknown
- 1994-07-26 BE BE9400702A patent/BE1008546A4/nl not_active IP Right Cessation
- 1994-09-14 IT ITMI941879A patent/IT1271011B/it active IP Right Grant
- 1994-09-21 FR FR9411253A patent/FR2710638B1/fr not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1922775A1 (de) * | 1968-05-09 | 1969-11-13 | Atlantic Richfield Co | Verfahren zur Herstellung von aromatischen Dicarbonsaeuren |
| US3683017A (en) * | 1970-04-01 | 1972-08-08 | Fmc Corp | Oxidation of p-xylene and p-tolujc acid to terephthalic acid |
| DE2362295A1 (de) * | 1972-12-14 | 1974-06-20 | Halcon International Inc | Verfahren zur herstellung von isooder terephthalsaeure |
| DE2703161A1 (de) * | 1976-01-29 | 1977-08-11 | Mitsubishi Chem Ind | Verfahren zur herstellung von hochgradig reiner terephthalsaeure |
| US4772748A (en) * | 1982-12-10 | 1988-09-20 | Mitsubishi Chemical Industries Limited | Process for producing highly pure terephthalic acid |
| US4877900A (en) * | 1987-04-24 | 1989-10-31 | Mitsubishi Chemical Industries Limited | Process for preparing terephthalic acid of high quality |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2081265B1 (es) | 1996-10-16 |
| BG62324B1 (bg) | 1999-08-31 |
| TW307753B (enExample) | 1997-06-11 |
| BG98919A (bg) | 1995-05-31 |
| JPH08506571A (ja) | 1996-07-16 |
| BR9305996A (pt) | 1997-10-21 |
| SK280582B6 (sk) | 2000-04-10 |
| IT1271011B (it) | 1997-05-26 |
| SK87794A3 (en) | 1995-05-10 |
| KR950008467A (ko) | 1995-04-17 |
| CN1050118C (zh) | 2000-03-08 |
| US5359133A (en) | 1994-10-25 |
| PL308537A1 (en) | 1995-08-21 |
| RO113850B1 (ro) | 1998-11-30 |
| GB9415915D0 (en) | 1995-05-24 |
| KR970000136B1 (ko) | 1997-01-04 |
| CA2128719C (en) | 1998-06-09 |
| ITMI941879A1 (it) | 1996-03-14 |
| MY108978A (en) | 1996-11-30 |
| ITMI941879A0 (it) | 1994-09-14 |
| ES2081265A1 (es) | 1996-02-16 |
| GB2286588B (en) | 1996-09-11 |
| SA94140587B1 (ar) | 2006-11-12 |
| DE4397599T1 (de) | 1997-07-24 |
| JP3009223B2 (ja) | 2000-02-14 |
| FR2710638A1 (fr) | 1995-04-07 |
| BE1008546A4 (nl) | 1996-06-04 |
| PL175685B1 (pl) | 1999-01-29 |
| AU5576394A (en) | 1995-04-18 |
| CN1103860A (zh) | 1995-06-21 |
| CA2128719A1 (en) | 1995-03-29 |
| GB2286588A (en) | 1995-08-23 |
| WO1995009143A1 (en) | 1995-04-06 |
| FR2710638B1 (fr) | 1996-04-26 |
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