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 productInfo
- 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
Links
Landscapes
- 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.
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) |
-
2003
- 2003-12-03 EP EP03790245A patent/EP1569887A1/en not_active Withdrawn
- 2003-12-03 AU AU2003293250A patent/AU2003293250A1/en not_active Abandoned
- 2003-12-03 BR BR0316450-0A patent/BR0316450A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP1569887A1 (en) | 2005-09-07 |
AU2003293250A1 (en) | 2004-06-30 |
AU2003293250A8 (en) | 2004-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AR042321A1 (en) | PREPARATION OF CRUDE CARBOXYLIC ACID IN THE FORM OF A SUSPENSION AND A PROCEDURE FOR THE PURIFICATION OF THE SUSPENSION | |
AR042318A1 (en) | PROCEDURE FOR OXIDATIVE PURIFICATION OF TEREFTALIC ACID | |
AR042320A1 (en) | PROCEDURE FOR OXIDATIVE PURIFICATION OF TEREFTALIC ACID | |
BR0316462A (en) | Processes for reducing a purified carboxylic acid suspension, for purifying a staged oxidation product, for producing a purified carboxylic acid product, and for purified carboxylic acid suspension | |
BR0316461A (en) | Process for producing a purified carboxylic acid product and, purified carboxylic acid suspension | |
JP2006169185A5 (en) | Method for continuously purifying hydroxycarboxylic acid, method for producing cyclic ester, and method for producing polyhydroxycarboxylic acid | |
RU2005136662A (en) | METHOD FOR CLEANING RAW TERPHTHALIC ACID IN THE NEXT OXIDATION ZONE BY INTRODUCING WATER VAPOR | |
WO2000031014A8 (en) | Process of purifying and producing high purity aromatic polycarboxylic acids and derivatives thereof | |
BR0109453A (en) | Dimeric cyclic ester purification process, crystal suspension composition and wet cake composition | |
DE59510510D1 (en) | Process and apparatus for the production of pure argon | |
DE60117860D1 (en) | CRYSTALLIZATION PROCESS FOR THE PRODUCTION OF VERY PURE PARA-XYLOL | |
BR0316450A (en) | Processes for producing a suspended product, a purified carboxylic acid product, and a crystallized, oxidized, suspended product | |
BR9913720A (en) | Purification process by crystallization or crystallization of carboxylic acids | |
EP1460997A4 (en) | Methods for the purification of levofloxacin | |
JPS5939719A (en) | Manufacture of high purity lithium carbonate | |
ATE475724T1 (en) | CRYSTALIZATION PROCESS FOR CLEANING A MELTED METAL, PARTICULARLY RECYCLED ALUMINUM | |
BR0317594A (en) | Process for preparing a pharmaceutically pure polymorphic olanzapine "i" form, resulting product and process for removing impurity "s" from the olanzapine polymorphic form i | |
MY137867A (en) | Process for purifying mesotrione | |
IT1319195B1 (en) | PROCESS FOR THE PRODUCTION OF R (+) ALPHA-LIPOIC ACID. | |
DE69706487D1 (en) | Benzopyranopyridoncarboxylic acids and process for their preparation | |
TH72589B (en) | Processes for terephthalic acid oxidative purification | |
TH68554A (en) | Processes for terephthalic acid oxidative purification | |
ID24689A (en) | PROCESS FOR PRODUCING 2,3,5-TRIMETHYL HYDROXININONE DIESTERS | |
EP1498412A4 (en) | Process for producing dihydroxydiphenyl sulfone | |
HUP0003490A2 (en) | Method for purifying phthalides |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Technical examination (opinion): publication of technical examination (opinion) | ||
B09B | Decision: refusal |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O, 13 E 25 DA LPI. |
|
B09B | Decision: refusal |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |