BR0316450A - Processes for producing a suspended product, a purified carboxylic acid product, and a crystallized, oxidized, suspended product - Google Patents

Processes for producing a suspended product, a purified carboxylic acid product, and a crystallized, oxidized, suspended product

Info

Publication number
BR0316450A
BR0316450A BR0316450-0A BR0316450A BR0316450A BR 0316450 A BR0316450 A BR 0316450A BR 0316450 A BR0316450 A BR 0316450A BR 0316450 A BR0316450 A BR 0316450A
Authority
BR
Brazil
Prior art keywords
product
carboxylic acid
suspended
crystallized
zone
Prior art date
Application number
BR0316450-0A
Other languages
Portuguese (pt)
Inventor
Charles Edwan Summer Jr
David Taylor Bowers
Philip Edward Gibson
Robert Lin
Ernest William Arnold Iii
Eric Jackson Fugate
George M Stevenson
Wayne Macclanahan
Harry Lee Carrell
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 US10/645,737 external-priority patent/US7074954B2/en
Priority claimed from US10/645,734 external-priority patent/US7161027B2/en
Application filed by Eastman Chem Co filed Critical Eastman Chem Co
Priority claimed from PCT/US2003/038305 external-priority patent/WO2004052820A1/en
Publication of BR0316450A publication Critical patent/BR0316450A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"PROCESSOS PARA PRODUZIR UM PRODUTO EM SUSPENSãO, E UM PRODUTO DE áCIDO CARBOXìLICO PURIFICADO, E, PRODUTOS EM SUSPENSãO, DE OXIDAçãO EM ESTáGIOS, E CRISTALIZADO". é apresentado um processo para a produção de um produto de ácido carboxílico purificado. O processo compreende a remoção de impurezas de uma suspensão de ácido carboxílico bruto, em uma zona de deslocamento sólido-líquido, para formar um produto em suspensão. O produto em suspensão é adicionalmente tratado em uma zona de oxidação em estágios e uma zona de cristalização, para formar um produto cristalizado. O produto cristalizado é adicionalmente resfriado em uma zona de resfriamento e posteriormente é filtrado e seco 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 a hidrogenação."PROCESSES TO PRODUCE A SUSPENDED PRODUCT, AND A PURIFIED CARBOXYLIC ACID PRODUCT, AND, SUSPENDED PRODUCTS, STAGE OXIDATION, AND CRYSTALLIZED". A process for producing a purified carboxylic acid product is presented. The process comprises removing impurities from a suspension of crude carboxylic acid in a solid-liquid displacement zone to form a suspension product. The suspended product is further treated in a stepwise oxidation zone and a crystallization zone to form a crystallized product. The crystallized product is further cooled in a cooling zone and subsequently 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 hydrogenation.

BR0316450-0A 2002-12-09 2003-12-03 Processes for producing a suspended product, a purified carboxylic acid product, and a crystallized, oxidized, suspended product BR0316450A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US31529502A 2002-12-09 2002-12-09
US31529402A 2002-12-09 2002-12-09
US10/645,737 US7074954B2 (en) 2002-12-09 2003-08-21 Process for the oxidative purification of terephthalic acid
US10/645,734 US7161027B2 (en) 2002-12-09 2003-08-21 Process for the oxidative purification of terephthalic acid
US66777403A 2003-09-22 2003-09-22
PCT/US2003/038305 WO2004052820A1 (en) 2002-12-09 2003-12-03 Process for the purification of a crude carboxylic acid slurry

Publications (1)

Publication Number Publication Date
BR0316450A true BR0316450A (en) 2005-10-11

Family

ID=56290509

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0316450-0A BR0316450A (en) 2002-12-09 2003-12-03 Processes for producing a suspended product, a purified carboxylic acid product, and a crystallized, oxidized, suspended product

Country Status (3)

Country Link
EP (1) EP1569887A1 (en)
AU (1) AU2003293250A1 (en)
BR (1) BR0316450A (en)

Also Published As

Publication number Publication date
EP1569887A1 (en) 2005-09-07
AU2003293250A1 (en) 2004-06-30
AU2003293250A8 (en) 2004-06-30

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