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BR9813421A - Processos e dispositivos para a separação de catalisador de misturas de oxidação contendo ácidos dibásicos - Google Patents

Processos e dispositivos para a separação de catalisador de misturas de oxidação contendo ácidos dibásicos

Info

Publication number
BR9813421A
BR9813421A BR9813421-3A BR9813421A BR9813421A BR 9813421 A BR9813421 A BR 9813421A BR 9813421 A BR9813421 A BR 9813421A BR 9813421 A BR9813421 A BR 9813421A
Authority
BR
Brazil
Prior art keywords
catalyst
dibasic acids
processes
oxidation
devices
Prior art date
Application number
BR9813421-3A
Other languages
English (en)
Inventor
David C Decoster
Eustathios Vassiliou
Mark W Dassel
Ader M Rostami
Douglas J Dudgeon
Original Assignee
Rpc 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 Rpc Inc filed Critical Rpc Inc
Publication of BR9813421A publication Critical patent/BR9813421A/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
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • 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
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • C07C51/313—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with molecular oxygen

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
  • Polyamides (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

''PROCESSOS E DISPOSITIVOS PARA A SEPARAçãO DE CATALISADOR DE MISTURAS DE OXIDAçãO CONTENDO áCIDOS DIBáSICOS'' Esta invenção se refere a processos e a dispositivos reatores para o controle da oxidação de hidrocarbonetos em ácidos dibásicos, na presença de um catalisador e um ácido monobásico, por remoção do catalisador da mistura de reação, fora da zona de oxidação, após a oxidação ter ocorrido pelo menos parcialmente. Inicialmente, o catalisador é parcialmente precipitado e removido reduzindo-se o nível de água na mistura de reação e/ou submetendo-se a mistura de reação a uma temperatura em que ou acima da qual o catalisador precipite. Após a precipitação parcial inicial do catalisador, o lícor-mãe restante é submetido a um tratamento térmico, durante o qual pelo menos a maior parte do ácido monobásico é removida, deixando para trás ácidos dibásicos em fusão, em que o catalisador restante precipita substancialmente em sua totalidade, e é removido. O catalisador precipitado nos dois estágios de precipitação pode ser reciclado de diversas maneiras.
BR9813421-3A 1997-12-08 1998-12-08 Processos e dispositivos para a separação de catalisador de misturas de oxidação contendo ácidos dibásicos BR9813421A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/986,505 US5908589A (en) 1997-12-08 1997-12-08 Methods for separating catalyst from oxidation mixtures containing dibasic acids
PCT/US1998/026054 WO1999037599A2 (en) 1997-12-08 1998-12-08 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids

Publications (1)

Publication Number Publication Date
BR9813421A true BR9813421A (pt) 2000-10-10

Family

ID=25532496

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9813421-3A BR9813421A (pt) 1997-12-08 1998-12-08 Processos e dispositivos para a separação de catalisador de misturas de oxidação contendo ácidos dibásicos

Country Status (10)

Country Link
US (2) US5908589A (pt)
EP (1) EP1040093A2 (pt)
JP (1) JP2002501036A (pt)
KR (1) KR20010032875A (pt)
CN (1) CN1285814A (pt)
AU (1) AU2652199A (pt)
BR (1) BR9813421A (pt)
CA (1) CA2313107A1 (pt)
TW (1) TW436319B (pt)
WO (1) WO1999037599A2 (pt)

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US6433220B1 (en) 1998-07-02 2002-08-13 Rpc Inc. Methods of extracting catalyst from a reaction mixture in the oxidation of cyclohexane to adipic acid
US6340420B1 (en) 1998-07-06 2002-01-22 Rpc Inc. Methods of treating the oxidation mixture of hydrocarbons to respective dibasic acids
WO2000063147A1 (en) 1999-04-20 2000-10-26 Rpc Inc. Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
US6982234B2 (en) 2000-06-01 2006-01-03 Gtc Technology Inc. Methods and apparatus for removing catalyst from oxidation reactor effluent
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CN102746139B (zh) * 2012-07-17 2014-11-05 中国天辰工程有限公司 一种从己二酸废液中回收二元酸副产品的方法

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Also Published As

Publication number Publication date
CA2313107A1 (en) 1999-07-29
EP1040093A2 (en) 2000-10-04
US20010001649A1 (en) 2001-05-24
JP2002501036A (ja) 2002-01-15
WO1999037599A2 (en) 1999-07-29
WO1999037599A3 (en) 1999-09-30
TW436319B (en) 2001-05-28
AU2652199A (en) 1999-08-09
CN1285814A (zh) 2001-02-28
KR20010032875A (ko) 2001-04-25
US5908589A (en) 1999-06-01

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]