BR9912344A - Processo para a preparação de ácido acrìlico. - Google Patents

Processo para a preparação de ácido acrìlico.

Info

Publication number
BR9912344A
BR9912344A BR9912344-4A BR9912344A BR9912344A BR 9912344 A BR9912344 A BR 9912344A BR 9912344 A BR9912344 A BR 9912344A BR 9912344 A BR9912344 A BR 9912344A
Authority
BR
Brazil
Prior art keywords
acrylic acid
preparation
solution
alkanes
return
Prior art date
Application number
BR9912344-4A
Other languages
English (en)
Inventor
Bernd Eck
Joerg Heilek
Volker Schliephake
Theo Proll
Klaus Broellos
Otto Machhammer
Joachim Thiel
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 BR9912344A publication Critical patent/BR9912344A/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

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

"PROCESSO PARA A PREPARAçãO DE áCIDO ACRìLICO" A invenção refere-se a um processo para produção de ácido acrílico por meio de a) produção de uma mistura de produto gasoso que essencialmente possui a composição de uma mistura reacional da oxidação catalítica em fase gasosa de C~3~ -alcanos, -alquenos, -alcanóis e/ou precursores dos mesmos a ácido acrílico. O processo é caracterizado por b) a condensação da mistura de produto gasoso; c) a cristalização do ácido acrílico da solução obtida na etapa b) com evaporação parcial da solução em um vácuo; d) a separação dos cristais obtidos do licor mãe; e) o retorno de pelo menos parte do licor mãe da etapa d) para etapa b) e f) o retorno de pelo menos parte da solução evaporada da etapa c) para etapa b).
BR9912344-4A 1998-07-22 1999-07-21 Processo para a preparação de ácido acrìlico. BR9912344A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833049A DE19833049A1 (de) 1998-07-22 1998-07-22 Verfahren zur Herstellung von Acrylsäure
PCT/EP1999/005204 WO2000005188A1 (de) 1998-07-22 1999-07-21 Verfahren zur herstellung von acrylsäure

Publications (1)

Publication Number Publication Date
BR9912344A true BR9912344A (pt) 2001-04-17

Family

ID=7874971

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9912344-4A BR9912344A (pt) 1998-07-22 1999-07-21 Processo para a preparação de ácido acrìlico.

Country Status (9)

Country Link
US (1) US6433222B1 (pt)
EP (1) EP1098867A1 (pt)
JP (1) JP4520637B2 (pt)
KR (1) KR20010072021A (pt)
CN (1) CN1311766A (pt)
BR (1) BR9912344A (pt)
DE (1) DE19833049A1 (pt)
ID (1) ID27390A (pt)
WO (1) WO2000005188A1 (pt)

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DE19829477A1 (de) * 1998-07-01 2000-01-05 Basf Ag Verfahren zur Reinigung von Acrylsäure oder Methacrylsäure durch Kristallisation und Destillation
MY122671A (en) 1999-03-06 2006-04-29 Basf Ag Fractional condensation of a product gas mixture containing acrylic acid
DE19926082A1 (de) * 1999-06-08 2000-12-14 Basf Ag Verfahren zur Reinigung und Herstellung von Acrylsäure oder Methacrylsäure
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KR100563661B1 (ko) * 2003-12-18 2006-03-23 한국전자통신연구원 가변 고차 베셀 저역 통과 필터
JP2005336142A (ja) * 2004-05-31 2005-12-08 Mitsubishi Chemicals Corp （メタ）アクリル酸の製造装置及び（メタ）アクリル酸の製造方法
JP5192827B2 (ja) * 2005-03-01 2013-05-08 ビーエーエスエフ ソシエタス・ヨーロピア 主成分並びに目的生成物としてのアクリル酸及び副成分としてのメタクリル酸を含有する液相からのメタクリル酸の分離方法
MY140513A (en) * 2005-03-01 2009-12-31 Basf Ag Process for removing methacrolein from liquid phase comprising acrylic acid as a main constituent and target product, and methacrolein as a secondary component
JP5368673B2 (ja) * 2006-01-20 2013-12-18 株式会社日本触媒 （メタ）アクリル酸の製造方法
KR100999428B1 (ko) * 2006-01-20 2010-12-09 니폰 쇼쿠바이 컴파니 리미티드 (메타)아크릴산의 제조 방법
DE102006035718A1 (de) * 2006-07-28 2008-01-31 Basf Ag Verfahren zum Langzeitbetrieb einer kontinuierlich betriebenen heterogen katalysierten partiellen Dehydrierung eines zu dehydrierenden Kohlenwasserstoffs
DE102006049939A1 (de) 2006-10-19 2008-04-24 Basf Ag Verfahren zur Trennung von in einem Produktgasgemisch einer partiellen heterogen katalysierten Gasphasenoxidation einer C3-Vorläuferverbindung der Acrylsäure enthaltener Acrylsäure und Benzoesäure
JP2010506881A (ja) * 2006-10-19 2010-03-04 ビーエーエスエフ ソシエタス・ヨーロピア アクリル酸のｃ３前駆体化合物の不均一系触媒気相部分酸化の生成物ガス混合物中に含有されるアクリル酸および安息香酸の分離法
JP5507111B2 (ja) * 2008-05-30 2014-05-28 ローム アンド ハース カンパニー 水性（メタ）アクリル酸の製造方法
MY153094A (en) * 2008-07-28 2014-12-31 Basf Se Process for separating acrylic acid present as a main constituent and glyoxal present as a by-product in a product gas mixture of a partial heterogeneously catalyzed gas phase oxidation of a c3 precursor compound of acrylic acid
CA2813552C (en) 2008-10-06 2015-01-20 Huntsman International Llc Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
US20130085302A1 (en) * 2011-10-03 2013-04-04 Celanese International Corporation Processes for Producing Acrylic Acids and Acrylates
KR20160032994A (ko) 2014-09-17 2016-03-25 주식회사 엘지화학 (메트)아크릴산의 회수 방법 및 회수 장치
CN105061193B (zh) * 2015-08-10 2017-03-22 蓝星（北京）技术中心有限公司 蛋氨酸生产废水处理中回收有机物的方法
WO2024049103A1 (ko) * 2022-08-30 2024-03-07 주식회사 엘지화학 고순도 (메트)아크릴산의 제조방법
WO2024049101A1 (ko) * 2022-08-30 2024-03-07 주식회사 엘지화학 고순도 (메트)아크릴산의 제조방법

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DE19740252A1 (de) * 1997-09-12 1999-03-18 Basf Ag Verfahren zur Herstellung von Acrylsäure und Methacrylsäure

Also Published As

Publication number Publication date
DE19833049A1 (de) 2000-01-27
EP1098867A1 (de) 2001-05-16
ID27390A (id) 2001-04-05
JP2002521353A (ja) 2002-07-16
CN1311766A (zh) 2001-09-05
KR20010072021A (ko) 2001-07-31
WO2000005188A1 (de) 2000-02-03
US6433222B1 (en) 2002-08-13
JP4520637B2 (ja) 2010-08-11

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired