BR9813349A - Processo para a purificação de ácido tereftálico bruto de uma dispersão lìquida do mesmo que também contém impurezas selecionadas entre materiais de partida não reagidos, solventes, produtos de reações secundárias e/ou outros materiais indesejados - Google Patents

Processo para a purificação de ácido tereftálico bruto de uma dispersão lìquida do mesmo que também contém impurezas selecionadas entre materiais de partida não reagidos, solventes, produtos de reações secundárias e/ou outros materiais indesejados

Info

Publication number
BR9813349A
BR9813349A BR9813349-7A BR9813349A BR9813349A BR 9813349 A BR9813349 A BR 9813349A BR 9813349 A BR9813349 A BR 9813349A BR 9813349 A BR9813349 A BR 9813349A
Authority
BR
Brazil
Prior art keywords
terephthalic acid
solvent
materials
solution
solvents
Prior art date
Application number
BR9813349-7A
Other languages
English (en)
Other versions
BR9813349B1 (pt
Inventor
Fu-Ming Lee
Wiston Lamshing
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 BR9813349A publication Critical patent/BR9813349A/pt
Publication of BR9813349B1 publication Critical patent/BR9813349B1/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
    • 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)

Abstract

"PROCESSO PARA A PURIFICAçãO DE áCIDO TEREFTáLICO BRUTO DE UMA DISPERSãO LìQUIDA DO MESMO QUE TAMBéM CONTéM IMPUREZAS SELECIONADAS ENTRE MATERIAIS DE PARTIDA NãO REAGIDOS, SOLVENTES, PRODUTOS DE REAçõES SECUNDáRIAS E/OU OUTROS MATERIAIS INDESEJADOS". São fornecidos um processo e uma aparelhagem para a purificação de ácido tereftálico bruto de uma dispersão líquida do mesmo que também contém impurezas selecionadas entre materiais de partida não reagidos, solventes, produtos de reações secundárias e/ou outros materiais indesejados. O processo compreende as etapas de filtração da dispersão para formar uma torta de filtro de ácido tereftálico bruto, dissolução da torta do filtro em um solvente para cristalização seletiva a uma temperatura elevada para formar uma solução, cristalização do ácido tereftálico purificado da solução no solvente de cristalização por redução da pressão e da temperatura da solução e separação do dito ácido tereftálico purificado cristalizado da solução. De acordo com a invenção, o solvente é não aquoso, não corrosivo e essencialmente não reativo com ácido tereftálico. Preferencialmente, o solvente para cristalização seletiva é N-metil pirrolidona ou N,N-dimetil acetamida. O processo e a aparelhagem produzem ácido tereftálico purificado que tem uma pureza desejada para uso na formação de resina de poliéster e outros produtos a uma velocidade economicamente atraente e a condição de operação de gravidade reduzida que requerem um menor investimento de capital e um processamento simplificado.
BRPI9813349-7A 1997-10-31 1998-10-29 processo para a purificaÇço de Ácido tereftÁlico bruto de uma dispersço lÍquida do mesmo que tambÉm contÉm impurezas selecionadas entre materiais de partida nço reagidos, solventes, produtos de reaÇÕes secundÁrias e/ou outros materiais indesejados. BR9813349B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/962,030 US5840968A (en) 1995-06-07 1997-10-31 Method and apparatus for preparing purified terephthalic acid
PCT/US1998/022942 WO1999023055A1 (en) 1997-10-31 1998-10-29 Method and apparatus for preparing purified terephthalic acid

Publications (2)

Publication Number Publication Date
BR9813349A true BR9813349A (pt) 2000-08-22
BR9813349B1 BR9813349B1 (pt) 2010-08-24

Family

ID=25505339

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9813349-7A BR9813349B1 (pt) 1997-10-31 1998-10-29 processo para a purificaÇço de Ácido tereftÁlico bruto de uma dispersço lÍquida do mesmo que tambÉm contÉm impurezas selecionadas entre materiais de partida nço reagidos, solventes, produtos de reaÇÕes secundÁrias e/ou outros materiais indesejados.

Country Status (17)

Country Link
US (1) US5840968A (pt)
EP (1) EP1030829B1 (pt)
JP (1) JP4381600B2 (pt)
KR (1) KR100603723B1 (pt)
CN (1) CN1127471C (pt)
AR (1) AR017765A1 (pt)
AU (1) AU1286899A (pt)
BR (1) BR9813349B1 (pt)
CA (1) CA2307783C (pt)
DE (1) DE69835229T2 (pt)
ES (1) ES2263227T3 (pt)
ID (1) ID21201A (pt)
MY (1) MY119529A (pt)
RU (1) RU2213725C2 (pt)
TR (1) TR200001138T2 (pt)
TW (1) TW505627B (pt)
WO (1) WO1999023055A1 (pt)

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US7919652B2 (en) * 2005-05-19 2011-04-05 Eastman Chemical Company Process to produce an enriched composition through the use of a catalyst removal zone and an enrichment zone
US7897809B2 (en) * 2005-05-19 2011-03-01 Eastman Chemical Company Process to produce an enrichment feed
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US7557243B2 (en) 2005-05-19 2009-07-07 Eastman Chemical Company Enriched terephthalic acid composition
US20060264656A1 (en) * 2005-05-19 2006-11-23 Fujitsu Limited Enrichment process using compounds useful in a polyester process
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US7884231B2 (en) * 2005-05-19 2011-02-08 Eastman Chemical Company Process to produce an enriched composition
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US20070179312A1 (en) * 2006-02-02 2007-08-02 O'meadhra Ruairi Seosamh Process for the purification of a crude carboxylic axid slurry
US8697906B2 (en) * 2006-03-01 2014-04-15 Grupo Petrotemex, S.A. De C.V. Methods and apparatus for producing a low-moisture carboxylic acid wet cake
US8173835B2 (en) * 2006-03-01 2012-05-08 Grupo Petrotemex, S.A. De C.V. Method and apparatus for drying carboxylic acid
US7888529B2 (en) 2006-03-01 2011-02-15 Eastman Chemical Company Process to produce a post catalyst removal composition
US8614350B2 (en) 2008-01-15 2013-12-24 Eastman Chemical Company Carboxylic acid production process employing solvent from esterification of lignocellulosic material
US8455680B2 (en) 2008-01-15 2013-06-04 Eastman Chemical Company Carboxylic acid production process employing solvent from esterification of lignocellulosic material
BRPI1006621A2 (pt) * 2009-04-24 2016-04-19 INVISTA Technologies S à r l "método de resfriar uma corrente de água-mãe"
KR20130110151A (ko) * 2010-08-23 2013-10-08 소니 주식회사 유기 박막의 형성 방법 및 형성 장치, 및 유기 디바이스의 제조 방법
CN102234226A (zh) * 2010-09-02 2011-11-09 华东理工大学 一种从碱减量废液中回收提纯对苯二甲酸的方法
CN102179063A (zh) * 2011-03-23 2011-09-14 苏州汇通色谱分离纯化有限公司 高压液-液萃取方法
CN103030554B (zh) * 2011-09-30 2015-04-08 中国石油化工股份有限公司 溶剂置换粗对苯二甲酸氧化浆料的方法
CN103121943B (zh) * 2011-11-18 2015-08-12 中国石油化工股份有限公司 提纯粗间苯二甲酸氧化浆料的方法
RU2475475C1 (ru) * 2011-12-26 2013-02-20 Открытое акционерное общество "Каустик" (ОАО "Каустик") Способ получения диамида терефталевой кислоты
US9024059B2 (en) 2011-12-29 2015-05-05 Uop Llc Process for producing terephthalic acid
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US8697905B2 (en) 2011-12-29 2014-04-15 Uop Llc Process for producing terephthalic acid
US8759571B2 (en) 2011-12-29 2014-06-24 Uop Llc Process for oxidizing alkyl-aromatic compounds
US9085522B2 (en) 2011-12-29 2015-07-21 Uop Llc Process for producing terephthalic acid
US8927764B2 (en) 2011-12-29 2015-01-06 Uop Llc Process for producing terephthalic acid
US9150484B2 (en) 2011-12-29 2015-10-06 Uop Llc Process for producing terephthalic acid
US9045408B2 (en) 2011-12-29 2015-06-02 Uop Llc Process for oxidizing alkyl-aromatic compounds
CN108623065B (zh) * 2017-03-22 2020-08-25 天华化工机械及自动化研究设计院有限公司 Pta精制单元母液的回收利用方法
KR20240012457A (ko) 2021-05-20 2024-01-29 까르비오 적어도 하나의 폴리에스테르를 포함하는 플라스틱 제품을 분해하기 위한 공정
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CN116368120A (zh) * 2021-07-19 2023-06-30 株式会社Lg化学 用于合成再生塑料的单体组合物、其制备方法以及使用其的再生塑料、模制品、增塑剂组合物
KR20240101673A (ko) 2021-11-16 2024-07-02 까르비오 에스테라제의 신규 용도

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Also Published As

Publication number Publication date
KR20010031634A (ko) 2001-04-16
JP4381600B2 (ja) 2009-12-09
TR200001138T2 (tr) 2000-09-21
AU1286899A (en) 1999-05-24
CA2307783C (en) 2008-12-30
DE69835229D1 (de) 2006-08-24
BR9813349B1 (pt) 2010-08-24
RU2213725C2 (ru) 2003-10-10
MY119529A (en) 2005-06-30
WO1999023055A1 (en) 1999-05-14
US5840968A (en) 1998-11-24
KR100603723B1 (ko) 2006-07-26
JP2001521917A (ja) 2001-11-13
AR017765A1 (es) 2001-10-24
EP1030829B1 (en) 2006-07-12
ID21201A (id) 1999-05-06
CN1278239A (zh) 2000-12-27
CN1127471C (zh) 2003-11-12
DE69835229T2 (de) 2006-11-23
ES2263227T3 (es) 2006-12-01
CA2307783A1 (en) 1999-05-14
EP1030829A4 (en) 2003-01-02
EP1030829A1 (en) 2000-08-30
TW505627B (en) 2002-10-11

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