CN1723184A - 对苯二甲酸的氧化纯化方法 - Google Patents
对苯二甲酸的氧化纯化方法 Download PDFInfo
- Publication number
- CN1723184A CN1723184A CN200380105533.6A CN200380105533A CN1723184A CN 1723184 A CN1723184 A CN 1723184A CN 200380105533 A CN200380105533 A CN 200380105533A CN 1723184 A CN1723184 A CN 1723184A
- Authority
- CN
- China
- Prior art keywords
- carboxylic acid
- purifying
- slurry material
- solid
- zone
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 73
- 230000008569 process Effects 0.000 title claims abstract description 20
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title claims description 92
- 238000000746 purification Methods 0.000 title abstract description 8
- 230000001590 oxidative effect Effects 0.000 title description 7
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims abstract description 165
- 239000002002 slurry Substances 0.000 claims abstract description 154
- 239000007788 liquid Substances 0.000 claims abstract description 94
- 238000006073 displacement reaction Methods 0.000 claims abstract description 64
- 239000012535 impurity Substances 0.000 claims abstract description 47
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 122
- 230000003647 oxidation Effects 0.000 claims description 91
- 238000007254 oxidation reaction Methods 0.000 claims description 91
- 239000002904 solvent Substances 0.000 claims description 40
- 238000002425 crystallisation Methods 0.000 claims description 11
- 230000008025 crystallization Effects 0.000 claims description 11
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical compound CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 7
- -1 catalyzer Chemical compound 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims 1
- 239000011362 coarse particle Substances 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 86
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 9
- 239000012452 mother liquor Substances 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000032050 esterification Effects 0.000 description 4
- 238000005886 esterification reaction Methods 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- PNVDDTCIZTWBNJ-UHFFFAOYSA-N 1-oxofluorene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=C2C3=CC=C(C(=O)O)C(=O)C3=CC2=C1 PNVDDTCIZTWBNJ-UHFFFAOYSA-N 0.000 description 2
- VCZNNAKNUVJVGX-UHFFFAOYSA-N 4-methylbenzonitrile Chemical compound CC1=CC=C(C#N)C=C1 VCZNNAKNUVJVGX-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical group [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- HRRDCWDFRIJIQZ-UHFFFAOYSA-N naphthalene-1,8-dicarboxylic acid Chemical compound C1=CC(C(O)=O)=C2C(C(=O)O)=CC=CC2=C1 HRRDCWDFRIJIQZ-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241001481760 Erethizon dorsatum Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229920004935 Trevira® Polymers 0.000 description 1
- 230000006578 abscission Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 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
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 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
- 239000008187 granular material Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- 239000012265 solid product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 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
Description
实施例号 | 4-CBA1(ppm) | TMA2(ppm) | 2,6-DCF3(ppm) | %T4 | b*5 |
1 | 103 | 51 | 10 | 89 | 4.1 |
2 | 44 | 23 | 4 | 95 | 2.9 |
Claims (26)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31529402A | 2002-12-09 | 2002-12-09 | |
US10/315,294 | 2002-12-09 | ||
US10/645,734 | 2003-08-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1723184A true CN1723184A (zh) | 2006-01-18 |
CN1310867C CN1310867C (zh) | 2007-04-18 |
Family
ID=32468656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2003801055336A Expired - Lifetime CN1310867C (zh) | 2002-12-09 | 2003-12-03 | 对苯二甲酸的氧化纯化方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7161027B2 (zh) |
CN (1) | CN1310867C (zh) |
AR (1) | AR042318A1 (zh) |
MY (1) | MY135149A (zh) |
TW (1) | TW200418787A (zh) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US7608732B2 (en) * | 2005-03-08 | 2009-10-27 | 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 |
US7586000B2 (en) * | 2004-09-02 | 2009-09-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7495125B2 (en) * | 2004-09-02 | 2009-02-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7589231B2 (en) * | 2004-09-02 | 2009-09-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7371894B2 (en) * | 2004-09-02 | 2008-05-13 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7608733B2 (en) * | 2004-09-02 | 2009-10-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US20060047153A1 (en) * | 2004-09-02 | 2006-03-02 | Wonders Alan G | Optimized liquid-phase oxidation |
US7692036B2 (en) * | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7390921B2 (en) * | 2004-09-02 | 2008-06-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7399882B2 (en) * | 2004-09-02 | 2008-07-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7683210B2 (en) * | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7910769B2 (en) * | 2004-09-02 | 2011-03-22 | 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 |
US7361784B2 (en) * | 2004-09-02 | 2008-04-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
ES2551479T3 (es) * | 2004-09-02 | 2015-11-19 | Grupo Petrotemex, S.A. De C.V. | Oxidación en fase líquida optimizada |
US7482482B2 (en) * | 2004-09-02 | 2009-01-27 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7582793B2 (en) | 2004-09-02 | 2009-09-01 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7741515B2 (en) | 2004-09-02 | 2010-06-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7572932B2 (en) * | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7381836B2 (en) * | 2004-09-02 | 2008-06-03 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7504535B2 (en) | 2004-09-02 | 2009-03-17 | Eastman Chemical Company | Optimized liquid-phase oxidation |
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 |
US20060264664A1 (en) * | 2005-05-19 | 2006-11-23 | Parker Kenny R | Esterification of an exchange solvent enriched composition |
US7880031B2 (en) * | 2005-05-19 | 2011-02-01 | Eastman Chemical Company | Process to produce an enrichment feed |
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 |
US20060264656A1 (en) * | 2005-05-19 | 2006-11-23 | Fujitsu Limited | Enrichment process using compounds useful in a polyester process |
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 |
US20060264662A1 (en) * | 2005-05-19 | 2006-11-23 | Gibson Philip E | Esterification of an 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 |
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 |
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 |
US7326807B2 (en) * | 2006-03-01 | 2008-02-05 | Eastman Chemical Company | Polycarboxylic acid production system with enhanced heating for 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 |
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 |
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 |
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 |
JP2010513497A (ja) * | 2006-12-21 | 2010-04-30 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ハロゲン化芳香族二酸の合成方法 |
US9199905B2 (en) * | 2008-10-31 | 2015-12-01 | Invista North America S.A.R.L. | Pure carboxylic acid filtration |
US8167974B2 (en) * | 2010-08-20 | 2012-05-01 | Grupo Petrotemex, S.A. De C.V. | Terephthalic acid purge filtration rate by controlling % water in filter feed slurry |
US9388111B2 (en) * | 2013-12-27 | 2016-07-12 | Eastman Chemical Company | Methods and apparatus for isolating dicarboxylic acid |
US9328051B2 (en) * | 2013-12-27 | 2016-05-03 | Eastman Chemical Company | Methods and apparatus for isolating dicarboxylic acid |
WO2016025399A1 (en) * | 2014-08-11 | 2016-02-18 | Bp Corporation North America Inc. | Separation process having improved capacity |
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DE2045747B2 (de) * | 1970-09-16 | 1978-09-07 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Reinigung von Terephthalsäure |
JPS4826740A (zh) | 1971-08-06 | 1973-04-09 | ||
GB1358520A (en) | 1972-06-05 | 1974-07-03 | Crampton K J A | Oxidation of aromatic organic compounds |
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DE3536622A1 (de) | 1985-10-15 | 1987-04-16 | Krupp Gmbh | Verfahren und vorrichtung zur gewinnung fester stoffe aus fluessigen stoffgemischen |
DE3639958A1 (de) | 1986-01-10 | 1987-07-16 | Amberger Kaolinwerke Gmbh | Mehrstufige anordnung zur gegenstromwaschung, sowie zugehoerige verfahrensmassnahmen |
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-
2003
- 2003-08-21 US US10/645,734 patent/US7161027B2/en not_active Expired - Lifetime
- 2003-12-03 CN CNB2003801055336A patent/CN1310867C/zh not_active Expired - Lifetime
- 2003-12-04 TW TW092134189A patent/TW200418787A/zh unknown
- 2003-12-05 AR ARP030104497A patent/AR042318A1/es not_active Application Discontinuation
- 2003-12-06 MY MYPI20034684A patent/MY135149A/en unknown
Also Published As
Publication number | Publication date |
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US7161027B2 (en) | 2007-01-09 |
TW200418787A (en) | 2004-10-01 |
CN1310867C (zh) | 2007-04-18 |
AR042318A1 (es) | 2005-06-15 |
MY135149A (en) | 2008-02-29 |
US20040110981A1 (en) | 2004-06-10 |
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