GB1237298A - Production of terephthalic and/or isophthalic acid - Google Patents
Production of terephthalic and/or isophthalic acidInfo
- Publication number
- GB1237298A GB1237298A GB1932769A GB1932769A GB1237298A GB 1237298 A GB1237298 A GB 1237298A GB 1932769 A GB1932769 A GB 1932769A GB 1932769 A GB1932769 A GB 1932769A GB 1237298 A GB1237298 A GB 1237298A
- Authority
- GB
- United Kingdom
- Prior art keywords
- xylene
- weight
- slurry
- isophthalic acid
- acid
- 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
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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,237,298. Preparation of terephthalic and/or isophthalic acid. CELANESE CORP. 16 April, 1969 [16 April, 1968], No. 19327/69. Heading C2C. A continuous process for the liquid phase oxidation with gaseous oxygen of m-xylene and/or p-xylene to obtain isophthalic acid and/or terephthalic acid comprises, maintaining in a reactor, in substantially uniform admixture, a body of liquid-solid slurry comprising, besides isophthalic acid and/or terephthalic acid, xylene and its intermediate oxidation products, acetaldehyde, acetic acid and a dissolved cobalt salt catalyst, continuously feeding into said slurry the xylene, at least 0À2 part by weight of acetaldehyde and from 3-15 parts by weight of acetic acid per part by weight of the xylene fed, a soluble cobalt compound, in quantity sufficient to provide 0À1 to 2À5 weight per cent of cobalt metal based on the combined weight of the xylene, acetic acid and acetaldehyde, and at least 3À25 moles of oxygen per mole of xylene, withdrawing from the reactor spent gas and sufficient of the slurry to maintain substantially constant the quantity in the reactor and recovering isophthalic acid and/or terephthalic acid as product from the withdrawn slurry, the oxidation being carried out at a temperature of from 120‹ to 140‹ C. under a gauge pressure of at least 95 1b. p.s.i. and so as to maintain an average residence time in the reactor such that at least 98À6% by weight of the xylene fed is oxidized to isophthalic acid and/or terephthalic acid and intermediate oxidation products, with xylene and the intermediate oxidation products forming less than 3% by weight of the slurry.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72170468A | 1968-04-16 | 1968-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1237298A true GB1237298A (en) | 1971-06-30 |
Family
ID=24898974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1932769A Expired GB1237298A (en) | 1968-04-16 | 1969-04-16 | Production of terephthalic and/or isophthalic acid |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE731519A (en) |
DE (1) | DE1919335A1 (en) |
FR (1) | FR2006269A1 (en) |
GB (1) | GB1237298A (en) |
NL (1) | NL6905812A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006028816A1 (en) * | 2004-09-02 | 2006-03-16 | Eastman Chemical Company | Optimized liquid-phase oxidation |
WO2006138029A1 (en) | 2005-06-16 | 2006-12-28 | Eastman Chemical Company | Optimized liquid-phase oxidation |
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 |
US7393973B2 (en) | 2006-03-01 | 2008-07-01 | Eastman Chemical Company | Polycarboxylic acid production system with enhanced residence time distribution for 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 |
US7507857B2 (en) * | 2004-09-02 | 2009-03-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7659427B2 (en) | 2004-09-02 | 2010-02-09 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7683210B2 (en) | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7692037B2 (en) * | 2004-09-02 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7692036B2 (en) | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
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 |
US7829037B2 (en) | 2006-03-01 | 2010-11-09 | Eastman Chemical Company | Oxidation system with sidedraw secondary reactor |
US7884232B2 (en) | 2005-06-16 | 2011-02-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7901636B2 (en) | 2004-09-02 | 2011-03-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7902396B2 (en) | 2004-09-02 | 2011-03-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7910071B2 (en) | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7910769B2 (en) | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7960581B2 (en) | 2004-09-02 | 2011-06-14 | Grupo Petrotemex, S.A. De C.V. | Optimized liquid-phase oxidation |
US8114356B2 (en) | 2004-09-02 | 2012-02-14 | Grupo Pretrotemex, S.A. de C.V. | Optimized liquid-phase oxidation |
US8470257B2 (en) | 2004-09-02 | 2013-06-25 | Grupo Petrotemex, S.A. De C.V. | Optimized liquid-phase oxidation |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5910649B2 (en) * | 1977-04-19 | 1984-03-10 | 三菱瓦斯化学株式会社 | Manufacturing method of terephthalic acid |
DE2822728C3 (en) * | 1978-05-24 | 1981-08-27 | Asahi Kasei Kogyo K.K., Osaka | Process for the production of terephthalic acid |
US7420082B2 (en) * | 2006-03-01 | 2008-09-02 | Eastman Chemical Company | Polycarboxylic acid production system employing hot liquor removal downstream of oxidative digestion |
-
1969
- 1969-04-14 FR FR6911430A patent/FR2006269A1/fr not_active Withdrawn
- 1969-04-15 BE BE731519D patent/BE731519A/xx unknown
- 1969-04-15 NL NL6905812A patent/NL6905812A/xx unknown
- 1969-04-16 DE DE19691919335 patent/DE1919335A1/en active Pending
- 1969-04-16 GB GB1932769A patent/GB1237298A/en not_active Expired
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7977505B2 (en) | 2004-09-02 | 2011-07-12 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US8114356B2 (en) | 2004-09-02 | 2012-02-14 | Grupo Pretrotemex, S.A. de C.V. | Optimized liquid-phase oxidation |
US8470257B2 (en) | 2004-09-02 | 2013-06-25 | Grupo Petrotemex, S.A. De C.V. | Optimized liquid-phase oxidation |
US8178054B2 (en) | 2004-09-02 | 2012-05-15 | Grupo Petrotemex, S. A. DE C. V. | Optimized liquid-phase oxidation |
WO2006028816A1 (en) * | 2004-09-02 | 2006-03-16 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7960581B2 (en) | 2004-09-02 | 2011-06-14 | Grupo Petrotemex, S.A. De C.V. | Optimized liquid-phase oxidation |
US7507857B2 (en) * | 2004-09-02 | 2009-03-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7659427B2 (en) | 2004-09-02 | 2010-02-09 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7683210B2 (en) | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7692037B2 (en) * | 2004-09-02 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7910769B2 (en) | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7901636B2 (en) | 2004-09-02 | 2011-03-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7910071B2 (en) | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7902396B2 (en) | 2004-09-02 | 2011-03-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7741515B2 (en) | 2004-09-02 | 2010-06-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US8501986B2 (en) | 2004-11-29 | 2013-08-06 | Grupo Petrotemex, S.A. De C.V. | Optimized liquid-phase oxidation |
US7692036B2 (en) | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
CN101198578B (en) * | 2005-06-16 | 2014-07-16 | 奇派特石化有限公司 | Optimized liquid-phase oxidation |
KR101364801B1 (en) * | 2005-06-16 | 2014-02-19 | 그루포 페트로테멕스 에스.에이. 데 씨.브이. | Optimized liquid-phase oxidation |
US7884232B2 (en) | 2005-06-16 | 2011-02-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
JP2008546690A (en) * | 2005-06-16 | 2008-12-25 | イーストマン ケミカル カンパニー | Optimized liquid phase oxidation |
WO2006138029A1 (en) | 2005-06-16 | 2006-12-28 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7772424B2 (en) | 2006-03-01 | 2010-08-10 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced evaporative concentration downstream of oxidative digestion |
US8153840B2 (en) | 2006-03-01 | 2012-04-10 | Grupo Petrotemex, S.A. De C.V. | Oxidation system with sidedraw secondary reactor |
US7393973B2 (en) | 2006-03-01 | 2008-07-01 | Eastman Chemical Company | Polycarboxylic acid production system with enhanced residence time distribution for oxidative digestion |
US7829037B2 (en) | 2006-03-01 | 2010-11-09 | Eastman Chemical Company | 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 |
US7816556B2 (en) | 2006-03-01 | 2010-10-19 | Eastman Chemical Company | Polycarboxylic acid production system employing enhanced multistage 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 |
Also Published As
Publication number | Publication date |
---|---|
NL6905812A (en) | 1969-10-20 |
DE1919335A1 (en) | 1969-10-23 |
FR2006269A1 (en) | 1969-12-26 |
BE731519A (en) | 1969-10-15 |
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