CA2576323A1 - Optimized purification production of terephthalic acid - Google Patents
Optimized purification production of terephthalic acid Download PDFInfo
- Publication number
- CA2576323A1 CA2576323A1 CA002576323A CA2576323A CA2576323A1 CA 2576323 A1 CA2576323 A1 CA 2576323A1 CA 002576323 A CA002576323 A CA 002576323A CA 2576323 A CA2576323 A CA 2576323A CA 2576323 A1 CA2576323 A1 CA 2576323A1
- Authority
- CA
- Canada
- Prior art keywords
- solids
- liquid
- mixture
- solids content
- solid
- 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.)
- Abandoned
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000000746 purification Methods 0.000 title abstract description 16
- 238000004519 manufacturing process Methods 0.000 title description 13
- 239000002002 slurry Substances 0.000 claims abstract description 215
- 239000007787 solid Substances 0.000 claims description 187
- 239000000203 mixture Substances 0.000 claims description 156
- 239000007788 liquid Substances 0.000 claims description 101
- 238000007254 oxidation reaction Methods 0.000 claims description 88
- 230000003647 oxidation Effects 0.000 claims description 87
- 230000001590 oxidative effect Effects 0.000 claims description 75
- 238000000034 method Methods 0.000 claims description 61
- 230000008569 process Effects 0.000 claims description 59
- 230000029087 digestion Effects 0.000 claims description 48
- 238000010790 dilution Methods 0.000 claims description 32
- 239000012895 dilution Substances 0.000 claims description 32
- 239000007800 oxidant agent Substances 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 25
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 20
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000000376 reactant Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- -1 aromatic dicarboxylic acids Chemical class 0.000 abstract description 6
- 125000003118 aryl group Chemical group 0.000 abstract description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 1
- 238000013386 optimize process Methods 0.000 abstract 1
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 30
- 239000002904 solvent Substances 0.000 description 29
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 26
- 239000007791 liquid phase Substances 0.000 description 24
- 238000011084 recovery Methods 0.000 description 21
- 239000012429 reaction media Substances 0.000 description 20
- 238000002425 crystallisation Methods 0.000 description 18
- 230000008025 crystallization Effects 0.000 description 18
- 239000012452 mother liquor Substances 0.000 description 18
- 150000001875 compounds Chemical class 0.000 description 17
- 239000012043 crude product Substances 0.000 description 16
- 239000003054 catalyst Substances 0.000 description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 11
- 239000000047 product Substances 0.000 description 11
- 239000010941 cobalt Substances 0.000 description 8
- 229910017052 cobalt Inorganic materials 0.000 description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 125000001183 hydrocarbyl group Chemical group 0.000 description 7
- 239000011572 manganese Substances 0.000 description 7
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 6
- 238000013019 agitation Methods 0.000 description 6
- 150000001491 aromatic compounds Chemical class 0.000 description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 6
- 229910052794 bromium Inorganic materials 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 239000007790 solid phase Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 150000001721 carbon Chemical group 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001431 2-methylbenzaldehyde Substances 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000013058 crude material Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 150000008376 fluorenones Chemical class 0.000 description 1
- OVWYEQOVUDKZNU-UHFFFAOYSA-N m-tolualdehyde Chemical compound CC1=CC=CC(C=O)=C1 OVWYEQOVUDKZNU-UHFFFAOYSA-N 0.000 description 1
- GPSDUZXPYCFOSQ-UHFFFAOYSA-N m-toluic acid Chemical compound CC1=CC=CC(C(O)=O)=C1 GPSDUZXPYCFOSQ-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- FXLOVSHXALFLKQ-UHFFFAOYSA-N p-tolualdehyde Chemical compound CC1=CC=C(C=O)C=C1 FXLOVSHXALFLKQ-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0022—Evaporation of components of the mixture to be separated by reducing pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
-
- 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
- C07C51/487—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)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60680704P | 2004-09-02 | 2004-09-02 | |
| US60673504P | 2004-09-02 | 2004-09-02 | |
| US60/606,735 | 2004-09-02 | ||
| US60/606,807 | 2004-09-02 | ||
| US11/191,766 | 2005-07-28 | ||
| US11/191,766 US7615663B2 (en) | 2004-09-02 | 2005-07-28 | Optimized production of aromatic dicarboxylic acids |
| PCT/US2005/030661 WO2006028773A2 (en) | 2004-09-02 | 2005-08-29 | Optimized purification production of terephthalic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2576323A1 true CA2576323A1 (en) | 2006-03-16 |
Family
ID=35613863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002576323A Abandoned CA2576323A1 (en) | 2004-09-02 | 2005-08-29 | Optimized purification production of terephthalic acid |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7615663B2 (enExample) |
| EP (1) | EP1861350A2 (enExample) |
| CN (1) | CN101031538B (enExample) |
| BR (1) | BRPI0514767A (enExample) |
| CA (1) | CA2576323A1 (enExample) |
| IN (1) | IN2014DN08961A (enExample) |
| MX (1) | MX2007002505A (enExample) |
| TW (1) | TW200621702A (enExample) |
| WO (1) | WO2006028773A2 (enExample) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7399882B2 (en) * | 2004-09-02 | 2008-07-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7504535B2 (en) * | 2004-09-02 | 2009-03-17 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7361784B2 (en) * | 2004-09-02 | 2008-04-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7589231B2 (en) * | 2004-09-02 | 2009-09-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7572932B2 (en) * | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7563926B2 (en) * | 2004-09-02 | 2009-07-21 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7741515B2 (en) | 2004-09-02 | 2010-06-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7608733B2 (en) * | 2004-09-02 | 2009-10-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7582793B2 (en) * | 2004-09-02 | 2009-09-01 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7390921B2 (en) * | 2004-09-02 | 2008-06-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7381836B2 (en) | 2004-09-02 | 2008-06-03 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7507857B2 (en) * | 2004-09-02 | 2009-03-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7568361B2 (en) * | 2004-09-02 | 2009-08-04 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7692037B2 (en) | 2004-09-02 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7572936B2 (en) | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7910769B2 (en) * | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7586000B2 (en) * | 2004-09-02 | 2009-09-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7692036B2 (en) | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US20060047153A1 (en) * | 2004-09-02 | 2006-03-02 | Wonders Alan G | Optimized liquid-phase oxidation |
| US7495125B2 (en) * | 2004-09-02 | 2009-02-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7482482B2 (en) * | 2004-09-02 | 2009-01-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7371894B2 (en) * | 2004-09-02 | 2008-05-13 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7608732B2 (en) * | 2005-03-08 | 2009-10-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7683210B2 (en) * | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7884232B2 (en) * | 2005-06-16 | 2011-02-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7355068B2 (en) * | 2006-01-04 | 2008-04-08 | Eastman Chemical Company | Oxidation system with internal secondary reactor |
| US7358389B2 (en) * | 2006-01-04 | 2008-04-15 | Eastman Chemical Company | Oxidation system employing internal structure for enhanced hydrodynamics |
| US20070155987A1 (en) * | 2006-01-04 | 2007-07-05 | O'meadhra Ruairi S | Oxidative digestion with optimized agitation |
| 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 |
| US7772424B2 (en) * | 2006-03-01 | 2010-08-10 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion |
| US7816556B2 (en) * | 2006-03-01 | 2010-10-19 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced multistage oxidative digestion |
| US20070208194A1 (en) | 2006-03-01 | 2007-09-06 | Woodruff Thomas E | Oxidation system with sidedraw secondary reactor |
| US7714094B2 (en) * | 2007-11-15 | 2010-05-11 | Eastman Chemical Company | Simplified isophthalic acid process for modifying PET |
| GB2489684A (en) * | 2011-03-31 | 2012-10-10 | Haifa Chemicals Ltd | Crystallisation Apparatus |
| CN105218358B (zh) * | 2015-09-29 | 2017-09-12 | 江西科苑生物药业有限公司 | 一种粗均苯三甲酸的精制方法 |
| US20180050930A1 (en) * | 2016-08-16 | 2018-02-22 | Naveed Aslam | Crystallizer for water reclamation |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2794832A (en) | 1955-06-20 | 1957-06-04 | Shell Dev | Crystallization and separation of crystals |
| US2962361A (en) | 1957-08-12 | 1960-11-29 | Standard Oil Co | Continuous oxidation system for producing carboxylic acids |
| US3629321A (en) * | 1969-05-26 | 1971-12-21 | Standard Oil Co | Integration of para-xylene oxidation to terephthalic acid and its esterification to dimethyl terephthalate |
| US3873275A (en) | 1969-09-29 | 1975-03-25 | Whiting Corp | Crystallization apparatus and method |
| JPS5518698B1 (enExample) | 1971-04-03 | 1980-05-21 | ||
| GB2014564B (en) | 1977-12-28 | 1982-06-23 | Mitsui Petrochemical Ind | Process for producing terephthalic acid |
| US4334086A (en) | 1981-03-16 | 1982-06-08 | Labofina S.A. | Production of terephthalic acid |
| JPS5993029A (ja) | 1982-11-16 | 1984-05-29 | Mitsubishi Chem Ind Ltd | 高純度テレフタル酸の製造法 |
| US4835307A (en) * | 1984-12-13 | 1989-05-30 | Amoco Corporation | Method and apparatus for controlling the manufacture of terephthalic acid to control the level and variability of the contaminant content and the optical density |
| JP2545103B2 (ja) | 1987-12-17 | 1996-10-16 | 三井石油化学工業株式会社 | テレフタル酸スラリ―の分散媒交換方法 |
| ES2064912T3 (es) | 1990-06-25 | 1995-02-01 | Mitsubishi Gas Chemical Co | Procedimiento para producir acido isoftalico de elevada pureza. |
| GB9102393D0 (en) | 1991-02-05 | 1991-03-20 | Ici Plc | Production of terephthalic acid |
| WO1993019826A1 (en) | 1992-03-27 | 1993-10-14 | Allied-Signal Inc. | Process for crystallization in a draft tube baffle crystallizer |
| KR970000136B1 (ko) * | 1993-09-28 | 1997-01-04 | 브이.피. 유리예프 | 고순도 벤젠디카르복실산 이성질체의 제조방법 |
| US5712412A (en) | 1994-12-26 | 1998-01-27 | Mitsubishi Gas Chemical Co., Inc. | Process for producing highly pure 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 |
| JPH1045667A (ja) | 1996-07-29 | 1998-02-17 | Mitsubishi Gas Chem Co Inc | 分散媒置換装置を用いた高純度テレフタル酸の製造方法 |
| ES2206894T3 (es) | 1997-02-27 | 2004-05-16 | E.I. Dupont De Nemours And Company | Produccion de acido tereftalico. |
| WO2001053246A1 (en) | 2000-01-21 | 2001-07-26 | Bp Corporation North America Inc. | Production of high purity aromatic carboxylic acid by oxidation in benzoic acid and water solvent |
| WO2001055075A2 (en) | 2000-01-25 | 2001-08-02 | Inca International S.P.A. | Process for the recovery of crude terephthalic acid (cta) |
| DE10026619A1 (de) | 2000-05-29 | 2001-12-06 | Basf Ag | Vorrichtung zur Herstellung von Kristallen |
| AU2003293251A1 (en) * | 2002-12-09 | 2004-06-30 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| KR101004211B1 (ko) | 2002-12-09 | 2010-12-24 | 이스트만 케미칼 컴파니 | 조질 카복실산 슬러리의 정제 방법 |
| JP2006510484A (ja) | 2002-12-16 | 2006-03-30 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 結晶／沈殿体／粒子を生成させる装置および方法 |
| US20040215036A1 (en) | 2003-04-25 | 2004-10-28 | Robert Lin | Method for heating a crude carboxylic acid slurry in a post oxidation zone by the addition of steam |
-
2005
- 2005-07-28 US US11/191,766 patent/US7615663B2/en active Active
- 2005-08-29 EP EP05792470A patent/EP1861350A2/en not_active Withdrawn
- 2005-08-29 BR BRPI0514767-0A patent/BRPI0514767A/pt not_active IP Right Cessation
- 2005-08-29 CN CN2005800290037A patent/CN101031538B/zh not_active Expired - Lifetime
- 2005-08-29 MX MX2007002505A patent/MX2007002505A/es unknown
- 2005-08-29 WO PCT/US2005/030661 patent/WO2006028773A2/en not_active Ceased
- 2005-08-29 CA CA002576323A patent/CA2576323A1/en not_active Abandoned
- 2005-08-29 IN IN8961DEN2014 patent/IN2014DN08961A/en unknown
- 2005-09-02 TW TW094130017A patent/TW200621702A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DN08961A (enExample) | 2015-07-10 |
| BRPI0514767A (pt) | 2008-06-24 |
| WO2006028773A3 (en) | 2006-07-13 |
| MX2007002505A (es) | 2007-05-04 |
| TW200621702A (en) | 2006-07-01 |
| WO2006028773A2 (en) | 2006-03-16 |
| US7615663B2 (en) | 2009-11-10 |
| CN101031538B (zh) | 2012-03-28 |
| US20060047166A1 (en) | 2006-03-02 |
| EP1861350A2 (en) | 2007-12-05 |
| CN101031538A (zh) | 2007-09-05 |
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