EG21657A - Method for recovering methyl acetate and residual acetic acid in the production of pure terephthabic acid - Google Patents

Method for recovering methyl acetate and residual acetic acid in the production of pure terephthabic acid

Info

Publication number
EG21657A
EG21657A EG99399A EG99399A EG21657A EG 21657 A EG21657 A EG 21657A EG 99399 A EG99399 A EG 99399A EG 99399 A EG99399 A EG 99399A EG 21657 A EG21657 A EG 21657A
Authority
EG
Egypt
Prior art keywords
acid
methyl acetate
terephthabic
pure
production
Prior art date
Application number
EG99399A
Other languages
English (en)
Inventor
William David Parten
Original Assignee
Du Pont
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
Priority claimed from US09/257,275 external-priority patent/US6150553A/en
Application filed by Du Pont filed Critical Du Pont
Application granted granted Critical
Publication of EG21657A publication Critical patent/EG21657A/xx

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Luminescent Compositions (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
EG99399A 1998-08-11 1999-08-10 Method for recovering methyl acetate and residual acetic acid in the production of pure terephthabic acid EG21657A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13229798A 1998-08-11 1998-08-11
US09/257,275 US6150553A (en) 1998-08-11 1999-02-24 Method for recovering methyl acetate and residual acetic acid in the production acid of pure terephthalic acid

Publications (1)

Publication Number Publication Date
EG21657A true EG21657A (en) 2002-02-27

Family

ID=26830244

Family Applications (1)

Application Number Title Priority Date Filing Date
EG99399A EG21657A (en) 1998-08-11 1999-08-10 Method for recovering methyl acetate and residual acetic acid in the production of pure terephthabic acid

Country Status (14)

Country Link
EP (1) EP1104396B1 (pt)
JP (1) JP4246393B2 (pt)
CN (1) CN1135215C (pt)
AT (1) ATE225763T1 (pt)
BR (1) BR9914302A (pt)
CA (1) CA2337502C (pt)
DE (1) DE69903450T2 (pt)
DZ (1) DZ2868A1 (pt)
EG (1) EG21657A (pt)
ES (1) ES2182553T3 (pt)
ID (1) ID27786A (pt)
TR (1) TR200100436T2 (pt)
TW (1) TW483886B (pt)
WO (1) WO2000009468A1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6143926A (en) * 1999-09-21 2000-11-07 E. I. Du Pont De Nemours And Company Process for producing pure terephthalic acid with improved recovery of precursors, solvent and methyl acetate
WO2002068375A1 (fr) * 2001-02-27 2002-09-06 Mitsubishi Chemical Corporation Procede de distillation azeotropique
ITMI20021423A1 (it) * 2002-06-27 2003-12-29 Eurotecnica Dev & Licensing S Processo per la separazione dell'acqua prodotta nella ossidazione catalitica di idrocarburi aromatici ad acidi aromatici policarbossilici
CN1300088C (zh) * 2005-03-25 2007-02-14 扬子石油化工股份有限公司 一种回收芳香族羧酸生产过程中原料、溶剂和副产物的方法
CN100519503C (zh) * 2005-08-31 2009-07-29 株式会社日立工业设备技术 在芳香族羧酸的制备工序中回收醋酸的方法
US8382961B2 (en) * 2010-06-07 2013-02-26 Amt International, Inc. System and method for reduction of water consumption in purified terephthalic acid production
US20140121406A1 (en) * 2012-10-31 2014-05-01 Invista North America S.A.R.L. Pure plant mother liquor solvent extraction system and method
GB201417735D0 (en) * 2014-10-07 2014-11-19 Invista Tech Sarl Production of an aromatic dicarboxylic acid
CN105463540B (zh) * 2015-11-26 2017-12-15 湖南永盛新材料股份有限公司 一种用于电池壳体的镀覆镍钴/镍/镍磷多层膜不锈钢带及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1075317B (it) * 1977-04-13 1985-04-22 Montedison Spa Metodo per l'anidrificazione del solvente e per il ricupero del sottoprodotto acetato di metile in un processo di sintesi dell'acido tereftalico
US4172209A (en) * 1978-08-23 1979-10-23 Uop Inc. Process for producing dicarboxylic acids by the oxidation of xylene
GB9104776D0 (en) * 1991-03-07 1991-04-17 Ici Plc Process for the production of terephthalic acid
DE69511095T2 (de) * 1994-08-23 2000-04-06 E.I. Du Pont De Nemours And Co. Dehydratisierung der essigsäure durch azeotropische destillation in der herstellung von aromatischen säure

Also Published As

Publication number Publication date
EP1104396A1 (en) 2001-06-06
DZ2868A1 (fr) 2004-09-05
CN1312787A (zh) 2001-09-12
ES2182553T3 (es) 2003-03-01
CN1135215C (zh) 2004-01-21
DE69903450T2 (de) 2003-06-18
EP1104396B1 (en) 2002-10-09
ATE225763T1 (de) 2002-10-15
BR9914302A (pt) 2001-06-26
DE69903450D1 (de) 2002-11-14
CA2337502A1 (en) 2000-02-24
CA2337502C (en) 2009-03-24
ID27786A (id) 2001-04-26
WO2000009468A1 (en) 2000-02-24
TR200100436T2 (tr) 2001-06-21
JP4246393B2 (ja) 2009-04-02
JP2002522519A (ja) 2002-07-23
TW483886B (en) 2002-04-21

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