BR9909312A - Processos para separar ácido acrìlico, e para preparar um acrilato, ou uma mistura de dois ou mais do mesmo - Google Patents
Processos para separar ácido acrìlico, e para preparar um acrilato, ou uma mistura de dois ou mais do mesmoInfo
- Publication number
- BR9909312A BR9909312A BR9909312-0A BR9909312A BR9909312A BR 9909312 A BR9909312 A BR 9909312A BR 9909312 A BR9909312 A BR 9909312A BR 9909312 A BR9909312 A BR 9909312A
- Authority
- BR
- Brazil
- Prior art keywords
- acrylic acid
- esters
- mixture
- stage
- acrylate
- Prior art date
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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
"PROCESSOS PARA SEPARAR áCIDO ACRìLICO, E PARA PREPARAR UM ACRILATO, OU UMA MISTURA DE DOIS OU MAIS DO MESMO" A invenção refere-se a um processo para produzir ácido acrílico ou um éster de ácido acrílico, que compreende o estágio A, opcionalmente o estágio B, e opcionalmente o estágio C, como se segue: A: esfriar uma mistura de reação gasosa, formada durante o processo de oxidação de fase para a produção de ácido acrílico e contendo ácido acrílico usando um ácido acrílico contendo, no máximo, 5%, em peso, de água para formar uma mistura gasosa contendo ácido (met)acrílico; B: separar a mistura gasosa contendo ácido acrílico para obter uma fração de ebulição leve e um produto de fundo contendo ácido acrílico bruto; e C: esterificar o ácido acrílico bruto obtido no estágio B usando um ou mais alcanóis para produzir uma mistura de esterificação contendo um ou mais ésteres de ácido acrílico, um ou mais ésteres de ácido acético, um ou mais ésteres de ácido maleico e ésteres de ácido acrílico oligoméricos e poliméricos.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19814421A DE19814421A1 (de) | 1998-03-31 | 1998-03-31 | Verfahren zur Herstellung von Acrylsäure und Acrylsäureestern |
PCT/EP1999/002036 WO1999050222A1 (de) | 1998-03-31 | 1999-03-25 | Verfahren zur herstellung von acrylsäure und acrylsäureestern |
Publications (2)
Publication Number | Publication Date |
---|---|
BR9909312A true BR9909312A (pt) | 2000-11-21 |
BR9909312B1 BR9909312B1 (pt) | 2011-05-31 |
Family
ID=7863128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI9909312-0A BR9909312B1 (pt) | 1998-03-31 | 1999-03-25 | processos para separar ácido acrìlico, e para preparar um acrilato, ou uma mistura de dois ou mais do mesmo. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1068174B1 (pt) |
JP (1) | JP5021116B2 (pt) |
CN (1) | CN1137079C (pt) |
BR (1) | BR9909312B1 (pt) |
DE (2) | DE19814421A1 (pt) |
MY (1) | MY120567A (pt) |
WO (1) | WO1999050222A1 (pt) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19851983A1 (de) | 1998-11-11 | 2000-05-18 | Basf Ag | Verfahren zur kontinuierlichen Herstellung von Alkylestern der (Meth)acrylsäure |
MY122671A (en) | 1999-03-06 | 2006-04-29 | Basf Ag | Fractional condensation of a product gas mixture containing acrylic acid |
CN1238329C (zh) | 1999-03-06 | 2006-01-25 | 巴斯福股份公司 | 生产丙烯酸的方法 |
JP3885486B2 (ja) * | 2000-11-16 | 2007-02-21 | 東亞合成株式会社 | ビニル単量体用重合防止剤組成物及び高純度(メタ)アクリル酸の製造方法 |
DE10063161A1 (de) * | 2000-12-18 | 2002-06-20 | Basf Ag | Verfahren zum Abschrecken eines heißen (Meth)acrylsäure enthaltenden Gasgemisches |
US7592483B2 (en) | 2004-07-01 | 2009-09-22 | Basf Aktiengesellschaft | Preparation of acrolein or acrylic acid or a mixture thereof by heterogeneously catalyzed partial gas phase oxidation of propylene |
EP1773748B1 (en) | 2004-08-02 | 2010-05-19 | LG Chem, Ltd. | Method for producing (meth)acrylic acid |
US7705181B2 (en) | 2005-03-01 | 2010-04-27 | Basf Akiengesellschaft | Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component |
JP2007191435A (ja) * | 2006-01-19 | 2007-08-02 | Nippon Shokubai Co Ltd | (メタ)アクリル酸の製造方法 |
EP2066613B1 (en) | 2006-09-15 | 2012-06-27 | Arkema Inc. | Process for producing acrylic acid |
DE102008041573A1 (de) | 2008-08-26 | 2010-03-04 | Basf Se | Verfahren zur Auftrennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure als Hauptbestandteil enhaltener Acrylsäure und als Nebenprodukt enthaltenem Glyoxal |
DE102008040799A1 (de) | 2008-07-28 | 2008-12-11 | Basf Se | Verfahren zur Auftrennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure als Hauptbestandteil enthaltener Acrylsäure und als Nebenprodukt enthaltenem Glyoxal |
BRPI0916635B1 (pt) | 2008-07-28 | 2020-04-14 | Basf Se | processo para separar ácido acrílico, presente como um produto principal, e glioxal, presente como um subproduto em uma mistura gasosa |
JP5169899B2 (ja) * | 2009-02-19 | 2013-03-27 | 東亞合成株式会社 | アクリル酸アルキルエステルの製造方法 |
DE102010042216A1 (de) | 2010-10-08 | 2011-06-09 | Basf Se | Verfahren zur Hemmung der unerwünschten radikalischen Polymerisation von in einer flüssigen Phase P befindlicher Acrylsäure |
US10150091B2 (en) * | 2014-06-23 | 2018-12-11 | Basf Se | Apparatus for addition of droplets of a monomer solution to a reactor |
JP6497454B2 (ja) * | 2018-01-12 | 2019-04-10 | 三菱ケミカル株式会社 | アクリル酸ブチルの製造方法 |
CN112469686B (zh) | 2018-07-26 | 2024-04-05 | 巴斯夫欧洲公司 | 抑制液相p中存在的丙烯酸的不想要的自由基聚合的方法 |
EP4126808A1 (de) | 2020-03-26 | 2023-02-08 | Basf Se | Verfahren zur hemmung der unerwünschten radikalischen polymerisation von in einer flüssigen phase p befindlicher acrylsäure |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3405172A (en) * | 1962-12-19 | 1968-10-08 | Distillers Co Yeast Ltd | Preparation of acrylic acid with the prevention of formation of acrylic polymers |
JPS57144237A (en) * | 1981-03-04 | 1982-09-06 | Japan Synthetic Rubber Co Ltd | Preparation of methacrylic acid |
US4554054A (en) * | 1983-12-09 | 1985-11-19 | Rohm And Haas Company | Methacrylic acid separation |
CA1316545C (en) * | 1987-06-27 | 1993-04-20 | Morimasa Kuragano | Quenching process of reaction product gas containing methacrylic acid and treatment method of quenched liquid |
-
1998
- 1998-03-31 DE DE19814421A patent/DE19814421A1/de not_active Withdrawn
-
1999
- 1999-03-25 CN CNB998047813A patent/CN1137079C/zh not_active Expired - Lifetime
- 1999-03-25 DE DE59905752T patent/DE59905752D1/de not_active Expired - Lifetime
- 1999-03-25 JP JP2000541132A patent/JP5021116B2/ja not_active Expired - Lifetime
- 1999-03-25 EP EP99919140A patent/EP1068174B1/de not_active Expired - Lifetime
- 1999-03-25 WO PCT/EP1999/002036 patent/WO1999050222A1/de active IP Right Grant
- 1999-03-25 BR BRPI9909312-0A patent/BR9909312B1/pt not_active IP Right Cessation
- 1999-03-26 MY MYPI99001164A patent/MY120567A/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO1999050222A1 (de) | 1999-10-07 |
CN1296470A (zh) | 2001-05-23 |
DE19814421A1 (de) | 1999-10-07 |
JP5021116B2 (ja) | 2012-09-05 |
DE59905752D1 (de) | 2003-07-03 |
MY120567A (en) | 2005-11-30 |
EP1068174B1 (de) | 2003-05-28 |
CN1137079C (zh) | 2004-02-04 |
BR9909312B1 (pt) | 2011-05-31 |
JP2002509905A (ja) | 2002-04-02 |
EP1068174A1 (de) | 2001-01-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette] | ||
B07A | Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 31/05/2011, OBSERVADAS AS CONDICOES LEGAIS. |
|
B25D | Requested change of name of applicant approved |
Owner name: BASF SE (DE) |
|
B21A | Expiry acc. art. 78, item i of ipl- expiry of the term of protection |
Free format text: PATENTE EXTINTA EM 31.05.2021 |