ES326853A1 - Aromatic polycarboxilic acid purification procedure. (Machine-translation by Google Translate, not legally binding) - Google Patents
Aromatic polycarboxilic acid purification procedure. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES326853A1 ES326853A1 ES0326853A ES326853A ES326853A1 ES 326853 A1 ES326853 A1 ES 326853A1 ES 0326853 A ES0326853 A ES 0326853A ES 326853 A ES326853 A ES 326853A ES 326853 A1 ES326853 A1 ES 326853A1
- Authority
- ES
- Spain
- Prior art keywords
- aromatic
- polycarboxylic acid
- translation
- aldehyde
- legally binding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002253 acid Substances 0.000 title abstract 7
- 125000003118 aryl group Chemical group 0.000 title abstract 7
- 238000000746 purification Methods 0.000 title 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 2
- 239000007791 liquid phase Substances 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- -1 alkyl hydrocarbon Chemical class 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 238000005984 hydrogenation reaction Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000006193 liquid solution Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910000510 noble metal Inorganic materials 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 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
- C07C51/487—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)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for purifying crude aromatic polycarboxylic acid obtained by catalytic oxidation in liquid phase of a polyalkyl aromatic hydrocarbon with molecular oxygen in the presence of a heavy metal oxidation catalyst, said aromatic hydrocarbon having at least two nuclear alkyl hydrocarbon substitutes whose carbon bonded carbon A nuclear aromatic has at least one hydrogen atom, whose crude aromatic polycarboxylic acid has an aromatic polycarboxylic acid content of at least 99.0% by weight and having as its main impurity an aromatic carboxylic aldehyde corresponding to said polycarboxylic acid aromatic, characterized in that it comprises the formation of an aqueous liquid solution of said crude acid in water, the contact of said solution in liquid phase, at a temperature of about 232 to 316, and in the presence of hydrogen, with a catalyst and hydrogenation containing noble metal, for a time sufficient to effect a substantial reduction of said aldehyde and recovery of purified acid containing less than 125 ppm of said aldehyde, by crystallization effected by evaporation with controlled rate of said water. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45621965A | 1965-05-17 | 1965-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES326853A1 true ES326853A1 (en) | 1967-03-16 |
Family
ID=23811931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0326853A Expired ES326853A1 (en) | 1965-05-17 | 1966-05-17 | Aromatic polycarboxilic acid purification procedure. (Machine-translation by Google Translate, not legally binding) |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5138698B1 (en) |
| AT (1) | AT290507B (en) |
| BE (1) | BE681180A (en) |
| CH (1) | CH457397A (en) |
| DE (1) | DE1593540A1 (en) |
| DK (1) | DK125171B (en) |
| ES (1) | ES326853A1 (en) |
| GB (1) | GB1152575A (en) |
| SE (1) | SE350966B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2893860B2 (en) * | 1990-05-17 | 1999-05-24 | 三菱瓦斯化学株式会社 | Production method of high purity isophthalic acid |
| GB9104776D0 (en) * | 1991-03-07 | 1991-04-17 | Ici Plc | Process for the production of terephthalic acid |
| US5449820A (en) * | 1994-03-15 | 1995-09-12 | Mitsubishi Chemical Corporation | Method of preparing high purity 2,6-naphthalene dicarboxylic acid |
| US7485747B2 (en) | 2001-06-04 | 2009-02-03 | Eastman Chemical Company | Two stage oxidation process for the production of aromatic dicarboxylic acids |
| US7196215B2 (en) * | 2001-06-04 | 2007-03-27 | Eastman Chemical Company | Process for the production of purified terephthalic acid |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN101421220B (en) * | 2006-05-08 | 2012-10-31 | 三菱瓦斯化学株式会社 | Method of crystallization |
| CN103288632A (en) * | 2013-06-19 | 2013-09-11 | 中国石油化工股份有限公司 | Method for purifying crude trimesic acid |
| CN113105056A (en) * | 2021-04-14 | 2021-07-13 | 新疆中泰创新技术研究院有限责任公司 | Method for resource utilization of purified terephthalic acid wastewater |
| US20230383052A1 (en) * | 2021-07-19 | 2023-11-30 | Lg Chem, Ltd. | Monomer composition for synthesizing recycled plastic, preparation method thereof, and recycled plastic, molded product, plasticizer composition using the same |
-
1966
- 1966-05-16 GB GB2165466A patent/GB1152575A/en not_active Expired
- 1966-05-17 AT AT466266A patent/AT290507B/en not_active IP Right Cessation
- 1966-05-17 CH CH713066A patent/CH457397A/en unknown
- 1966-05-17 JP JP3095566A patent/JPS5138698B1/ja active Pending
- 1966-05-17 DK DK251766A patent/DK125171B/en unknown
- 1966-05-17 BE BE681180D patent/BE681180A/xx not_active IP Right Cessation
- 1966-05-17 SE SE685766A patent/SE350966B/xx unknown
- 1966-05-17 ES ES0326853A patent/ES326853A1/en not_active Expired
- 1966-05-17 DE DE19661593540 patent/DE1593540A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5138698B1 (en) | 1976-10-23 |
| GB1152575A (en) | 1969-05-21 |
| AT290507B (en) | 1971-06-11 |
| SE350966B (en) | 1972-11-13 |
| DE1593540A1 (en) | 1970-10-22 |
| DK125171B (en) | 1973-01-08 |
| BE681180A (en) | 1966-10-31 |
| CH457397A (en) | 1968-06-15 |
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