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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 mesmo

Info

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
Application number
BR9909312-0A
Other languages
English (en)
Other versions
BR9909312B1 (pt
Inventor
Gerhard Bolz
Gerhard Nestler
Juergen Schroeder
Original Assignee
Basf Ag
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 Basf Ag filed Critical Basf Ag
Publication of BR9909312A publication Critical patent/BR9909312A/pt
Publication of BR9909312B1 publication Critical patent/BR9909312B1/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
    • 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.
BRPI9909312-0A 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. BR9909312B1 (pt)

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)

* Cited by examiner, † Cited by third party
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
US6498272B1 (en) 1999-03-06 2002-12-24 Basf Aktiengesellschaft Method for producing acrylic acid
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
JP4732366B2 (ja) 2004-08-02 2011-07-27 エルジー・ケム・リミテッド （メタ）アクリル酸の製造法
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
KR101424522B1 (ko) 2006-09-15 2014-08-13 알케마 인코포레이티드 아크릴산의 제조방법
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
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
KR101861855B1 (ko) 2008-07-28 2018-05-28 바스프 에스이 탄소원자 수가 ３개인 아크릴산의 전구체 화합물의 기체상 생성물 혼합물로부터 주성분으로서 함유된 아크릴산과 부산물로서 함유된 글리옥살을 분리시키는 방법
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
WO2015197425A1 (de) * 2014-06-23 2015-12-30 Basf Se Vorrichtung zur zugabe von tropfen aus einer monomerlösung in einen reaktor
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
EP3826987A1 (de) 2018-07-26 2021-06-02 Basf Se Verfahren zur hemmung der unerwünschten radikalischen polymerisation von in einer flüssigen phase p befindlicher acrylsäure
JP2023519280A (ja) 2020-03-26 2023-05-10 ベーアーエスエフ・エスエー 液相ｐに存在するアクリル酸の望ましくないフリーラジカル重合を抑制する方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JP5021116B2 (ja) 2012-09-05
JP2002509905A (ja) 2002-04-02
DE59905752D1 (de) 2003-07-03
CN1296470A (zh) 2001-05-23
DE19814421A1 (de) 1999-10-07
WO1999050222A1 (de) 1999-10-07
BR9909312B1 (pt) 2011-05-31
CN1137079C (zh) 2004-02-04
EP1068174B1 (de) 2003-05-28
MY120567A (en) 2005-11-30
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