GB1237298A - Production of terephthalic and/or isophthalic acid - Google Patents

Production of terephthalic and/or isophthalic acid

Info

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
Application number
GB1932769A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Celanese Corp
Original Assignee
Celanese Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Celanese Corp filed Critical Celanese Corp
Publication of GB1237298A publication Critical patent/GB1237298A/en
Expired legal-status Critical Current

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.
GB1932769A 1968-04-16 1969-04-16 Production of terephthalic and/or isophthalic acid Expired GB1237298A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (29)

* Cited by examiner, † Cited by third party
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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