CN1512978A - 精制的对苯二甲酸的制备方法 - Google Patents
精制的对苯二甲酸的制备方法 Download PDFInfo
- Publication number
- CN1512978A CN1512978A CNA028113101A CN02811310A CN1512978A CN 1512978 A CN1512978 A CN 1512978A CN A028113101 A CNA028113101 A CN A028113101A CN 02811310 A CN02811310 A CN 02811310A CN 1512978 A CN1512978 A CN 1512978A
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- CN
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- Prior art keywords
- terephthalic acid
- pressure
- temperature
- product
- dissolved
- 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.)
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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 304
- 238000000034 method Methods 0.000 title claims abstract description 58
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 70
- 230000003647 oxidation Effects 0.000 claims abstract description 62
- 238000002425 crystallisation Methods 0.000 claims abstract description 34
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 33
- 230000008025 crystallization Effects 0.000 claims abstract description 28
- 239000003054 catalyst Substances 0.000 claims abstract description 24
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 117
- 239000002904 solvent Substances 0.000 claims description 75
- VCZNNAKNUVJVGX-UHFFFAOYSA-N 4-methylbenzonitrile Chemical compound CC1=CC=C(C#N)C=C1 VCZNNAKNUVJVGX-UHFFFAOYSA-N 0.000 claims description 65
- 239000007787 solid Substances 0.000 claims description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 36
- 239000001301 oxygen Substances 0.000 claims description 36
- 229910052760 oxygen Inorganic materials 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 34
- 239000007789 gas Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 28
- 239000012429 reaction media Substances 0.000 claims description 26
- -1 benzene compound Chemical class 0.000 claims description 20
- 239000007800 oxidant agent Substances 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 18
- 239000013078 crystal Substances 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 13
- 239000007791 liquid phase Substances 0.000 claims description 13
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical compound CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 claims description 7
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 235000011089 carbon dioxide Nutrition 0.000 claims description 6
- 230000006353 environmental stress Effects 0.000 claims description 6
- 238000007701 flash-distillation Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052794 bromium Inorganic materials 0.000 claims description 3
- 230000005068 transpiration Effects 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 abstract description 9
- 239000000047 product Substances 0.000 description 79
- 239000000243 solution Substances 0.000 description 29
- 239000002002 slurry Substances 0.000 description 26
- 238000002474 experimental method Methods 0.000 description 16
- 241001417501 Lobotidae Species 0.000 description 15
- 239000000463 material Substances 0.000 description 13
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 239000012535 impurity Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- 238000010790 dilution Methods 0.000 description 8
- 239000012895 dilution Substances 0.000 description 8
- 239000012452 mother liquor Substances 0.000 description 8
- 238000009835 boiling Methods 0.000 description 7
- 230000018044 dehydration Effects 0.000 description 7
- 238000006297 dehydration reaction Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 7
- 239000012467 final product Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003085 diluting agent Substances 0.000 description 6
- 230000006837 decompression Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000002288 cocrystallisation Methods 0.000 description 3
- 239000007859 condensation product Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- YLQWCDOCJODRMT-UHFFFAOYSA-N fluoren-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C2=C1 YLQWCDOCJODRMT-UHFFFAOYSA-N 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 150000003504 terephthalic acids Chemical class 0.000 description 3
- 239000012808 vapor phase Substances 0.000 description 3
- DYNFCHNNOHNJFG-UHFFFAOYSA-N 2-formylbenzoic acid Chemical compound OC(=O)C1=CC=CC=C1C=O DYNFCHNNOHNJFG-UHFFFAOYSA-N 0.000 description 2
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical group C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229920004935 Trevira® Polymers 0.000 description 2
- 239000003125 aqueous solvent Substances 0.000 description 2
- WURBFLDFSFBTLW-UHFFFAOYSA-N benzil Chemical compound C=1C=CC=CC=1C(=O)C(=O)C1=CC=CC=C1 WURBFLDFSFBTLW-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- MHCVCKDNQYMGEX-UHFFFAOYSA-N 1,1'-biphenyl;phenoxybenzene Chemical compound C1=CC=CC=C1C1=CC=CC=C1.C=1C=CC=CC=1OC1=CC=CC=C1 MHCVCKDNQYMGEX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzenecarboxaldehyde Natural products O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006482 condensation reaction Methods 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
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- FYIBGDKNYYMMAG-UHFFFAOYSA-N ethane-1,2-diol;terephthalic acid Chemical compound OCCO.OC(=O)C1=CC=C(C(O)=O)C=C1 FYIBGDKNYYMMAG-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002220 fluorenes Chemical class 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000012071 phase Substances 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
- 239000010970 precious metal Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Images
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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/14—Monocyclic dicarboxylic acids
- C07C63/15—Monocyclic dicarboxylic acids all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
- C07C63/26—1,4 - Benzenedicarboxylic acid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—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
- C07C51/43—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
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- 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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
物质 | 实验1 | 实验2 | 实验3 |
粗制对苯二甲酸(份) | 37.5015 | 37.505 | 37.4948 |
水(份) | 87.7337 | 87.5131 | 87.4698 |
对甲苯甲酸(ppmw) | 429.37 | 429.37 | 429.37 |
存在于精制的对苯二甲酸中的对甲苯甲酸(ppmw)(60℃) | 155.71 | 91.66 | 79.12 |
存在于精制的对苯二甲酸中的对甲苯甲酸(ppmw)(95℃) | 113.03 | 64.96 | 36.81 |
物质 | 实验4 | 实验5 |
粗制对苯二甲酸(份) | 25.0104 | 25.0017 |
水(份) | 99.9537 | 100.2292 |
对甲苯甲酸(ppmw) | 429.37 | 429.37 |
存在于精制的对苯二甲酸中的对甲苯甲酸(ppmw)(60℃) | 65.37 | 51.23 |
存在于精制的对苯二甲酸中的对甲苯甲酸(ppmw)(95℃) | 40.49 | 44.56 |
物质 | 实验1 | 实验2 | 实验3 | 实验4 | 实验5 |
粗制对苯二甲酸 | 30% | 30% | 30% | 20% | 20% |
母液对甲苯甲酸浓度(95℃) | 144.48 | 164.07 | 157.85 | 107.92 | 98.63 |
Claims (8)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29561901P | 2001-06-04 | 2001-06-04 | |
US60/295,619 | 2001-06-04 | ||
US10/161,571 | 2002-05-31 | ||
US10/161,571 US7196215B2 (en) | 2001-06-04 | 2002-05-31 | Process for the production of purified terephthalic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1512978A true CN1512978A (zh) | 2004-07-14 |
CN1258512C CN1258512C (zh) | 2006-06-07 |
Family
ID=26857943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028113101A Expired - Lifetime CN1258512C (zh) | 2001-06-04 | 2002-06-04 | 精制的对苯二甲酸的制备方法 |
Country Status (12)
Country | Link |
---|---|
US (1) | US7196215B2 (zh) |
EP (1) | EP1395543B1 (zh) |
JP (1) | JP4184948B2 (zh) |
KR (1) | KR100896382B1 (zh) |
CN (1) | CN1258512C (zh) |
AT (1) | ATE464281T1 (zh) |
BR (1) | BR0205510B1 (zh) |
CA (1) | CA2417691C (zh) |
DE (1) | DE60235979D1 (zh) |
MX (1) | MXPA03010973A (zh) |
RU (1) | RU2292332C2 (zh) |
WO (1) | WO2002098836A1 (zh) |
Cited By (10)
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CN101180255B (zh) * | 2005-05-19 | 2012-05-16 | 奇派特石化有限公司 | 一种制备富集进料的方法 |
CN101189207B (zh) * | 2005-05-19 | 2012-11-14 | 奇派特石化有限公司 | 通过利用催化剂除去区和富集区生产富集组合物的方法 |
CN103168021A (zh) * | 2010-08-20 | 2013-06-19 | 墨西哥石油集团有限公司 | 通过控制过滤器进料浆料中水的百分数提高对苯二甲酸清洗过滤速率 |
CN103168020A (zh) * | 2010-08-20 | 2013-06-19 | 墨西哥石油集团有限公司 | 通过控制过滤器进料浆液中的%水来提高对苯二甲酸的净化过滤速率 |
CN102600770B (zh) * | 2004-09-02 | 2015-08-19 | 奇派特石化有限公司 | 芳族二羧酸的优化制备 |
CN107428658A (zh) * | 2015-03-31 | 2017-12-01 | 沙特基础工业全球技术有限公司 | 用于纯化芳香二酸或相应酸酐的方法 |
CN107531604A (zh) * | 2015-03-31 | 2018-01-02 | 沙特基础工业全球技术有限公司 | 用于纯化芳香二酸或相应酸酐的方法 |
CN107531602A (zh) * | 2015-03-13 | 2018-01-02 | 奇派特石化有限公司 | 基于泡罩塔反应器的浸煮器及其使用方法 |
CN108495838A (zh) * | 2015-12-31 | 2018-09-04 | Bp北美公司 | 从含水料流回收乙酸的方法 |
TWI673260B (zh) * | 2014-10-24 | 2019-10-01 | 瑞士商素路彩化學股份有限公司 | 淨化丙烯酸的程序和裝置 |
Families Citing this family (111)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7196215B2 (en) | 2001-06-04 | 2007-03-27 | Eastman Chemical Company | Process for the production of purified terephthalic acid |
US7485747B2 (en) * | 2001-06-04 | 2009-02-03 | Eastman Chemical Company | Two stage oxidation process for the production of aromatic dicarboxylic acids |
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 |
US7494641B2 (en) | 2003-06-05 | 2009-02-24 | Eastman Chemical Company | Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid |
US7282151B2 (en) | 2003-06-05 | 2007-10-16 | Eastman Chemical Company | Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration |
US7452522B2 (en) * | 2003-06-05 | 2008-11-18 | Eastman Chemical Company | Extraction process for removal of impurities from an oxidizer purge stream in the synthesis of carboxylic acid |
US7381386B2 (en) * | 2003-06-05 | 2008-06-03 | Eastman Chemical Company | Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid |
US7351396B2 (en) * | 2003-06-05 | 2008-04-01 | Eastman Chemical Company | Extraction process for removal of impurities from an aqueous mixture |
US7410632B2 (en) * | 2003-06-05 | 2008-08-12 | Eastman Chemical Company | Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid |
US7105710B2 (en) * | 2003-09-26 | 2006-09-12 | Shell Oil Company | Process of preparing an alkylene glycol |
JP4657674B2 (ja) * | 2003-12-19 | 2011-03-23 | 三井化学株式会社 | テレフタル酸の製造方法 |
KR100650536B1 (ko) * | 2003-12-19 | 2006-11-27 | 미쓰이 가가쿠 가부시키가이샤 | 테레프탈산의 제조 방법 |
US7307188B2 (en) * | 2004-04-09 | 2007-12-11 | Gtc Technology, Inc. | Purification of carboxylic acids by complexation with selective solvents |
US20050283022A1 (en) * | 2004-06-18 | 2005-12-22 | Sheppard Ronald B | Filtrate preparation process for terephthalic acid filtrate treatment |
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Also Published As
Publication number | Publication date |
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CN1258512C (zh) | 2006-06-07 |
JP2004531573A (ja) | 2004-10-14 |
KR20030020966A (ko) | 2003-03-10 |
EP1395543B1 (en) | 2010-04-14 |
BR0205510A (pt) | 2003-06-24 |
CA2417691A1 (en) | 2002-12-12 |
CA2417691C (en) | 2009-09-29 |
RU2292332C2 (ru) | 2007-01-27 |
MXPA03010973A (es) | 2004-02-27 |
WO2002098836A1 (en) | 2002-12-12 |
BR0205510B1 (pt) | 2013-06-25 |
US20020193630A1 (en) | 2002-12-19 |
DE60235979D1 (de) | 2010-05-27 |
EP1395543A1 (en) | 2004-03-10 |
KR100896382B1 (ko) | 2009-05-08 |
ATE464281T1 (de) | 2010-04-15 |
US7196215B2 (en) | 2007-03-27 |
RU2003137848A (ru) | 2005-04-20 |
JP4184948B2 (ja) | 2008-11-19 |
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