CA2505976A1 - Procede de purification d'une boue d'acide carboxylique brute - Google Patents
Procede de purification d'une boue d'acide carboxylique brute Download PDFInfo
- Publication number
- CA2505976A1 CA2505976A1 CA002505976A CA2505976A CA2505976A1 CA 2505976 A1 CA2505976 A1 CA 2505976A1 CA 002505976 A CA002505976 A CA 002505976A CA 2505976 A CA2505976 A CA 2505976A CA 2505976 A1 CA2505976 A1 CA 2505976A1
- Authority
- CA
- Canada
- Prior art keywords
- carboxylic acid
- slurry
- product
- zone
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 118
- 150000001732 carboxylic acid derivatives Chemical class 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 72
- 230000008569 process Effects 0.000 title claims abstract description 70
- 238000000746 purification Methods 0.000 title abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 94
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 94
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000012535 impurity Substances 0.000 claims abstract description 35
- 238000006073 displacement reaction Methods 0.000 claims abstract description 33
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000002425 crystallisation Methods 0.000 claims abstract description 16
- 230000008025 crystallization Effects 0.000 claims abstract description 16
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 15
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 126
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 26
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 26
- 239000002904 solvent Substances 0.000 claims description 26
- 239000003054 catalyst Substances 0.000 claims description 24
- 230000001590 oxidative effect Effects 0.000 claims description 21
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical class [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 10
- 239000011572 manganese Substances 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 9
- 239000010941 cobalt Substances 0.000 claims description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 8
- 229910052794 bromium Inorganic materials 0.000 claims description 8
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 description 77
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 40
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- -1 aliphatic mono-carboxylic acids Chemical class 0.000 description 6
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 6
- 239000012452 mother liquor Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000005711 Benzoic acid Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-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
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000010960 commercial process Methods 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000011282 treatment Methods 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
- XSLGXTDGDJULAR-UHFFFAOYSA-N 2,5-diphenylterephthalic acid Chemical compound OC(=O)C=1C=C(C=2C=CC=CC=2)C(C(=O)O)=CC=1C1=CC=CC=C1 XSLGXTDGDJULAR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001481760 Erethizon dorsatum Species 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- WURBFLDFSFBTLW-UHFFFAOYSA-N benzil Chemical compound C=1C=CC=CC=1C(=O)C(=O)C1=CC=CC=C1 WURBFLDFSFBTLW-UHFFFAOYSA-N 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- YLQWCDOCJODRMT-UHFFFAOYSA-N fluoren-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C2=C1 YLQWCDOCJODRMT-UHFFFAOYSA-N 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229940102396 methyl bromide Drugs 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- KYTZHLUVELPASH-UHFFFAOYSA-N naphthalene-1,2-dicarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=CC=C21 KYTZHLUVELPASH-UHFFFAOYSA-N 0.000 description 1
- KSOCVFUBQIXVDC-FMQUCBEESA-N p-azophenyltrimethylammonium Chemical compound C1=CC([N+](C)(C)C)=CC=C1\N=N\C1=CC=C([N+](C)(C)C)C=C1 KSOCVFUBQIXVDC-FMQUCBEESA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
-
- 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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
L'invention concerne un procédé de production d'un produit d'acide carboxylique purifié. Ce procédé consiste à décharger les impuretés d'une boue d'acide carboxylique brute dans une zone de déplacement solide-liquide afin de former une boue. Cette boue est ensuite traitée dans une zone d'oxydation étagée et une zone de cristallisation afin de former un produit cristallisé. Ce produit cristallisé est ensuite refroidi dans une zone de refroidissement, puis filtré et séché dans une zone de filtrage et de séchage. Le procédé produit un acide carboxylique purifié de couleur agréable et à niveaux d'impuretés faibles sans utiliser d'étape de purification telle que l'hydrogénation.
Applications Claiming Priority (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31529502A | 2002-12-09 | 2002-12-09 | |
| US31529402A | 2002-12-09 | 2002-12-09 | |
| US10/315,294 | 2002-12-09 | ||
| US10/315,295 | 2002-12-09 | ||
| US10/645,737 US7074954B2 (en) | 2002-12-09 | 2003-08-21 | Process for the oxidative purification of terephthalic acid |
| US10/645,737 | 2003-08-21 | ||
| US10/645,734 | 2003-08-21 | ||
| US10/645,734 US7161027B2 (en) | 2002-12-09 | 2003-08-21 | Process for the oxidative purification of terephthalic acid |
| US10/667,744 | 2003-09-22 | ||
| US10/667,744 US7132566B2 (en) | 2003-09-22 | 2003-09-22 | Process for the purification of a crude carboxylic acid slurry |
| PCT/US2003/038305 WO2004052820A1 (fr) | 2002-12-09 | 2003-12-03 | Procede de purification d'une boue d'acide carboxylique brute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2505976A1 true CA2505976A1 (fr) | 2004-06-24 |
Family
ID=42777809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002505976A Abandoned CA2505976A1 (fr) | 2002-12-09 | 2003-12-03 | Procede de purification d'une boue d'acide carboxylique brute |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JP2006509044A (fr) |
| KR (1) | KR101004211B1 (fr) |
| AR (1) | AR042321A1 (fr) |
| CA (1) | CA2505976A1 (fr) |
| MX (1) | MXPA05006046A (fr) |
| MY (1) | MY140391A (fr) |
| PL (1) | PL208869B1 (fr) |
| TW (1) | TW200510292A (fr) |
| WO (1) | WO2004052820A1 (fr) |
Families Citing this family (63)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003293251A1 (en) | 2002-12-09 | 2004-06-30 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| 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 |
| US20050283022A1 (en) * | 2004-06-18 | 2005-12-22 | Sheppard Ronald B | Filtrate preparation process for terephthalic acid filtrate treatment |
| CN101518726B (zh) * | 2004-09-02 | 2012-12-12 | 奇派特石化有限公司 | 用于主要为液相流和主要为气相流的反应的鼓泡塔反应器 |
| US7741515B2 (en) | 2004-09-02 | 2010-06-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7582793B2 (en) | 2004-09-02 | 2009-09-01 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| CN101768034A (zh) * | 2004-09-02 | 2010-07-07 | 伊士曼化工公司 | 优化的液相氧化 |
| RU2388738C2 (ru) * | 2004-09-02 | 2010-05-10 | Истман Кемикал Компани | Оптимизированное жидкофазное окисление |
| US7692037B2 (en) | 2004-09-02 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| MX359077B (es) * | 2004-09-02 | 2018-09-13 | Grupo Petrotemex Sa De Cv | Produccion optimizada de acidos dicarboxilicos aromaticos. |
| US7910769B2 (en) * | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7608733B2 (en) | 2004-09-02 | 2009-10-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| MX2007002513A (es) * | 2004-09-02 | 2007-05-04 | Eastman Chem Co | Oxidacion en fase liquida optimizada. |
| US7692036B2 (en) | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7563926B2 (en) | 2004-09-02 | 2009-07-21 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| RU2388744C2 (ru) * | 2004-09-02 | 2010-05-10 | Истман Кемикал Компани | Состав сырой терефталевой кислоты и способ ее получения |
| US7683210B2 (en) * | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US20060047153A1 (en) * | 2004-09-02 | 2006-03-02 | Wonders Alan G | 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 |
| RU2388745C2 (ru) * | 2004-09-02 | 2010-05-10 | Истман Кемикал Компани | Оптимизированное жидкофазное окисление |
| RU2388743C2 (ru) * | 2004-09-02 | 2010-05-10 | Истман Кемикал Компани | Оптимизированное жидкофазное окисление |
| US7381836B2 (en) | 2004-09-02 | 2008-06-03 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| CA2576632A1 (fr) * | 2004-09-02 | 2006-03-16 | Eastman Chemical Company | Oxydation en phase liquide optimisee |
| US7572936B2 (en) * | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7608732B2 (en) | 2005-03-08 | 2009-10-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7399882B2 (en) | 2004-09-02 | 2008-07-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7615663B2 (en) | 2004-09-02 | 2009-11-10 | Eastman Chemical Company | Optimized production of aromatic dicarboxylic acids |
| US7390921B2 (en) * | 2004-09-02 | 2008-06-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7371894B2 (en) * | 2004-09-02 | 2008-05-13 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7482482B2 (en) | 2004-09-02 | 2009-01-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7572932B2 (en) | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| US7589231B2 (en) | 2004-09-02 | 2009-09-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| WO2006028817A2 (fr) * | 2004-09-02 | 2006-03-16 | Eastman Chemical Company | Oxydation en phase liquide optimisee |
| US7586000B2 (en) | 2004-09-02 | 2009-09-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| PT1786753E (pt) * | 2004-09-02 | 2015-12-01 | Grupo Petrotemex Sa De Cv | Oxidação em fase líquida otimizada |
| 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 |
| US7495125B2 (en) * | 2004-09-02 | 2009-02-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
| DE102004047076A1 (de) | 2004-09-28 | 2006-04-06 | Zimmer Ag | Verfahren zur Herstellung von Polyestern |
| 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 |
| US7557243B2 (en) | 2005-05-19 | 2009-07-07 | Eastman Chemical Company | Enriched terephthalic acid composition |
| US7741516B2 (en) | 2005-05-19 | 2010-06-22 | Eastman Chemical Company | Process to enrich a carboxylic acid composition |
| US7834208B2 (en) | 2005-05-19 | 2010-11-16 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
| US7897809B2 (en) | 2005-05-19 | 2011-03-01 | Eastman Chemical Company | Process to produce an enrichment feed |
| 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 |
| US7432395B2 (en) | 2005-05-19 | 2008-10-07 | Eastman Chemical Company | Enriched carboxylic acid composition |
| US20060264664A1 (en) * | 2005-05-19 | 2006-11-23 | Parker Kenny R | Esterification of an exchange solvent enriched composition |
| 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 |
| 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 |
| US7888529B2 (en) | 2006-03-01 | 2011-02-15 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
| 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 |
| US20070208194A1 (en) | 2006-03-01 | 2007-09-06 | Woodruff Thomas E | Oxidation system with sidedraw secondary reactor |
| US7772424B2 (en) | 2006-03-01 | 2010-08-10 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion |
| 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 |
| US7326807B2 (en) | 2006-03-01 | 2008-02-05 | Eastman Chemical Company | Polycarboxylic acid production system with enhanced heating for oxidative digestion |
| KR100713253B1 (ko) * | 2006-04-25 | 2007-05-02 | 삼성석유화학(주) | 테레프탈산 제조공정에서의 고액분리장치 및 이를 이용한고액분리방법 |
| KR102070065B1 (ko) | 2018-03-14 | 2020-03-02 | 엘지전자 주식회사 | 싸이클론 집진 장치 및 이를 포함하는 청소기 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3170768A (en) * | 1959-04-22 | 1965-02-23 | Standard Oil Co | System for continuous preparation of terephthalic acid |
| GB2072162B (en) * | 1980-03-21 | 1984-03-21 | Labofina Sa | Process for the production and the recovery of terephthalic acid |
| GB9302333D0 (en) * | 1993-02-05 | 1993-03-24 | Ici Plc | Filtration process |
| KR970000136B1 (ko) * | 1993-09-28 | 1997-01-04 | 브이.피. 유리예프 | 고순도 벤젠디카르복실산 이성질체의 제조방법 |
| AU2003293251A1 (en) * | 2002-12-09 | 2004-06-30 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
-
2003
- 2003-12-03 CA CA002505976A patent/CA2505976A1/fr not_active Abandoned
- 2003-12-03 JP JP2005508451A patent/JP2006509044A/ja active Pending
- 2003-12-03 WO PCT/US2003/038305 patent/WO2004052820A1/fr not_active Ceased
- 2003-12-03 PL PL375595A patent/PL208869B1/pl not_active IP Right Cessation
- 2003-12-03 MX MXPA05006046A patent/MXPA05006046A/es active IP Right Grant
- 2003-12-03 KR KR1020057010451A patent/KR101004211B1/ko not_active Expired - Fee Related
- 2003-12-04 TW TW092134212A patent/TW200510292A/zh unknown
- 2003-12-05 AR ARP030104500A patent/AR042321A1/es unknown
- 2003-12-06 MY MYPI20034682A patent/MY140391A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AR042321A1 (es) | 2005-06-15 |
| KR20050085478A (ko) | 2005-08-29 |
| TW200510292A (en) | 2005-03-16 |
| KR101004211B1 (ko) | 2010-12-24 |
| JP2006509044A (ja) | 2006-03-16 |
| PL375595A1 (en) | 2005-12-12 |
| WO2004052820A8 (fr) | 2004-09-30 |
| MY140391A (en) | 2009-12-31 |
| PL208869B1 (pl) | 2011-06-30 |
| WO2004052820A1 (fr) | 2004-06-24 |
| MXPA05006046A (es) | 2005-08-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |