BR0316461A - Process for producing a purified carboxylic acid product and, purified carboxylic acid suspension - Google Patents

Process for producing a purified carboxylic acid product and, purified carboxylic acid suspension

Info

Publication number
BR0316461A
BR0316461A BR0316461-6A BR0316461A BR0316461A BR 0316461 A BR0316461 A BR 0316461A BR 0316461 A BR0316461 A BR 0316461A BR 0316461 A BR0316461 A BR 0316461A
Authority
BR
Brazil
Prior art keywords
carboxylic acid
purified carboxylic
suspension
producing
purified
Prior art date
Application number
BR0316461-6A
Other languages
Portuguese (pt)
Inventor
Ronald Buford Sheppard
Brent Alan Tennant
Thomas Earl Woodruff
Robert Lin
Original Assignee
Eastman Chem Co
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 US10/645,734 external-priority patent/US7161027B2/en
Application filed by Eastman Chem Co filed Critical Eastman Chem Co
Publication of BR0316461A publication Critical patent/BR0316461A/en

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
    • C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • 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
    • 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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"PROCESSO PARA PRODUZIR UM PRODUTO DE áCIDO CARBOXìLICO PURIFICADO, E, SUSPENSãO DE áCIDO CARBOXìLICO PURIFICADO". E apresentado um processo para produzir uma suspensão de ácido carboxílico purificado. O processo compreende a remoção de impurezas de um produto cristalizado, em uma zona sólida de deslocamento sólido líquido, para formar a suspensão de ácido carboxílico purificado. A suspensão de ácido carboxílico purificado é ainda mais resfriada em uma zona de resfriamento e posteriormente é filtrada e seca em uma zona de filtragem e secagem. O processo produz um produto de ácido carboxílico purificado, tendo uma cor boa e baixos níveis de impurezas, sem o uso de etapas de purificação, como hidrogenação ou purga do filtrado."PROCESS FOR PRODUCING A PURIFIED CARBOXYLIC ACID PRODUCT, AND PURIFIED CARBOXYLIC ACID SUSPENSION". A process for producing a suspension of purified carboxylic acid is disclosed. The process comprises removing impurities from a crystallized product in a solid solid liquid displacement zone to form the purified carboxylic acid suspension. The purified carboxylic acid suspension is further cooled in a cooling zone and then filtered and dried in a filtering and drying zone. The process produces a purified carboxylic acid product having a good color and low levels of impurities without the use of purification steps such as filtrate hydrogenation or purging.

BR0316461-6A 2002-12-09 2003-12-03 Process for producing a purified carboxylic acid product and, purified carboxylic acid suspension BR0316461A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31529402A 2002-12-09 2002-12-09
US10/645,734 US7161027B2 (en) 2002-12-09 2003-08-21 Process for the oxidative purification of terephthalic acid
PCT/US2003/038307 WO2004052822A1 (en) 2002-12-09 2003-12-03 Process for the oxidative purification of terephthalic acid

Publications (1)

Publication Number Publication Date
BR0316461A true BR0316461A (en) 2005-10-11

Family

ID=32511021

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0316461-6A BR0316461A (en) 2002-12-09 2003-12-03 Process for producing a purified carboxylic acid product and, purified carboxylic acid suspension

Country Status (6)

Country Link
EP (1) EP1569889A1 (en)
KR (1) KR101034964B1 (en)
AU (1) AU2003293252A1 (en)
BR (1) BR0316461A (en)
MX (1) MXPA05005979A (en)
WO (1) WO2004052822A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004047076A1 (en) 2004-09-28 2006-04-06 Zimmer Ag Process for the preparation of polyesters
US7897809B2 (en) 2005-05-19 2011-03-01 Eastman Chemical Company Process to produce an enrichment feed
US7432395B2 (en) 2005-05-19 2008-10-07 Eastman Chemical Company Enriched carboxylic acid composition
US7557243B2 (en) 2005-05-19 2009-07-07 Eastman Chemical Company Enriched terephthalic acid composition
US7304178B2 (en) 2005-05-19 2007-12-04 Eastman Chemical Company Enriched isophthalic acid composition
US7880031B2 (en) 2005-05-19 2011-02-01 Eastman Chemical Company Process to produce an enrichment feed
US7834208B2 (en) 2005-05-19 2010-11-16 Eastman Chemical Company Process to produce a post catalyst removal composition
US7884231B2 (en) 2005-05-19 2011-02-08 Eastman Chemical Company Process to produce an enriched composition
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
US7741516B2 (en) * 2005-05-19 2010-06-22 Eastman Chemical Company Process to enrich a carboxylic acid composition
US7888529B2 (en) 2006-03-01 2011-02-15 Eastman Chemical Company Process to produce a post catalyst removal composition
US20120302773A1 (en) 2011-05-24 2012-11-29 Eastman Chemical Company Oxidation process to produce a crude and/or purified carboxylic acid product

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170768A (en) * 1959-04-22 1965-02-23 Standard Oil Co System for continuous preparation of terephthalic acid
GB2072162B (en) * 1980-03-21 1984-03-21 Labofina Sa Process for the production and the recovery of terephthalic acid
GB9302333D0 (en) * 1993-02-05 1993-03-24 Ici Plc Filtration process
KR970000136B1 (en) * 1993-09-28 1997-01-04 브이.피. 유리예프 Process for producing highly purified benzenedicarboxylic acid isomers

Also Published As

Publication number Publication date
WO2004052822A1 (en) 2004-06-24
KR101034964B1 (en) 2011-05-17
AU2003293252A1 (en) 2004-06-30
MXPA05005979A (en) 2005-08-18
KR20050084213A (en) 2005-08-26
EP1569889A1 (en) 2005-09-07

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.