BR9911310A - Processo para reduzir 4-carboxibenzaldeìdo (4-cba) na produção de ácido tereftálico (tpa) ou 3-carboxibenzaldeìdo (3-cba) na produção de ácido isoftálico - Google Patents

Processo para reduzir 4-carboxibenzaldeìdo (4-cba) na produção de ácido tereftálico (tpa) ou 3-carboxibenzaldeìdo (3-cba) na produção de ácido isoftálico

Info

Publication number
BR9911310A
BR9911310A BR9911310-4A BR9911310A BR9911310A BR 9911310 A BR9911310 A BR 9911310A BR 9911310 A BR9911310 A BR 9911310A BR 9911310 A BR9911310 A BR 9911310A
Authority
BR
Brazil
Prior art keywords
cba
carboxybenzaldehyde
production
tpa
acid
Prior art date
Application number
BR9911310-4A
Other languages
English (en)
Inventor
Wiston Lamshing
Fu-Ming Lee
Randi Wright Wytcherley
Original Assignee
Hfm Int Inc
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 Hfm Int Inc filed Critical Hfm Int Inc
Publication of BR9911310A publication Critical patent/BR9911310A/pt

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
    • C07C51/42—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)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"PROCESSO PARA REDUZIR 4-CARBOXIBENZALDEIDO (4 CBA) NA PRODUçãO DE áCIDO TEREFTáLICO (TPA) OU 3-CARBOXIBENZALDEìDO (3-CBA) NA PRODUçãO DE áCIDO ISOFTáLICO" Um processo para reduzir isómeros de carboxibenzaldeído em ácidos tereftálico e/ou isoftálico é descrito. O TPA ou o IPA bruto são dissolvidos em N-metil pirrolidona e são subsequentemente contatados com um oxidante, tal como peróxido de hidrogênio substancialmente anidro para converter o isómero de carboxibenzaldeído (4-CBA ou 3-CBA) a TPA ou IPA sob condições moderadas de temperatura e pressão.
BR9911310-4A 1998-06-16 1999-05-18 Processo para reduzir 4-carboxibenzaldeìdo (4-cba) na produção de ácido tereftálico (tpa) ou 3-carboxibenzaldeìdo (3-cba) na produção de ácido isoftálico BR9911310A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/098,060 US5929274A (en) 1995-06-07 1998-06-16 Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid
PCT/US1999/011005 WO1999065854A1 (en) 1998-06-16 1999-05-18 Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid

Publications (1)

Publication Number Publication Date
BR9911310A true BR9911310A (pt) 2001-03-13

Family

ID=22266696

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9911310-4A BR9911310A (pt) 1998-06-16 1999-05-18 Processo para reduzir 4-carboxibenzaldeìdo (4-cba) na produção de ácido tereftálico (tpa) ou 3-carboxibenzaldeìdo (3-cba) na produção de ácido isoftálico

Country Status (15)

Country Link
US (1) US5929274A (pt)
EP (1) EP1087925B1 (pt)
JP (1) JP4704561B2 (pt)
KR (1) KR100629101B1 (pt)
CN (1) CN1172894C (pt)
AU (1) AU4191099A (pt)
BR (1) BR9911310A (pt)
CA (1) CA2335231A1 (pt)
DE (1) DE69915062T2 (pt)
ES (1) ES2217760T3 (pt)
IL (1) IL140313A0 (pt)
RU (1) RU2230730C2 (pt)
TR (1) TR200100342T2 (pt)
TW (1) TW442463B (pt)
WO (1) WO1999065854A1 (pt)

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US7741515B2 (en) * 2004-09-02 2010-06-22 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
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US7683210B2 (en) 2004-09-02 2010-03-23 Eastman Chemical Company Optimized liquid-phase oxidation
US7608733B2 (en) * 2004-09-02 2009-10-27 Eastman Chemical Company Optimized liquid-phase oxidation
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US7884232B2 (en) * 2005-06-16 2011-02-08 Eastman Chemical Company Optimized liquid-phase oxidation
US7358389B2 (en) * 2006-01-04 2008-04-15 Eastman Chemical Company Oxidation system employing internal structure for enhanced hydrodynamics
BE1020269A5 (nl) 2012-01-17 2013-07-02 Taminco Gebruik van vervangende oplosmiddelen voor n-methylpyrrolidon (nmp).
US9340482B2 (en) 2013-12-30 2016-05-17 Eastman Chemical Company Processes for making cyclohexane compounds
US9346737B2 (en) 2013-12-30 2016-05-24 Eastman Chemical Company Processes for making cyclohexane compounds
US9328050B1 (en) 2014-12-23 2016-05-03 Eastman Chemical Company Processes for making hydroxymethylbenzoic acid compounds
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Also Published As

Publication number Publication date
US5929274A (en) 1999-07-27
DE69915062T2 (de) 2004-10-14
IL140313A0 (en) 2002-02-10
KR20010052888A (ko) 2001-06-25
ES2217760T3 (es) 2004-11-01
RU2230730C2 (ru) 2004-06-20
WO1999065854A1 (en) 1999-12-23
KR100629101B1 (ko) 2006-09-28
DE69915062D1 (de) 2004-04-01
EP1087925B1 (en) 2004-02-25
JP4704561B2 (ja) 2011-06-15
JP2002518359A (ja) 2002-06-25
EP1087925A1 (en) 2001-04-04
CN1172894C (zh) 2004-10-27
TR200100342T2 (tr) 2001-06-21
AU4191099A (en) 2000-01-05
TW442463B (en) 2001-06-23
CA2335231A1 (en) 1999-12-23
CN1312786A (zh) 2001-09-12

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