BR9908730A - Processos para o isolamento retificativo e para a preparação de ácido (met) acrìlico - Google Patents

Processos para o isolamento retificativo e para a preparação de ácido (met) acrìlico

Info

Publication number
BR9908730A
BR9908730A BR9908730-8A BR9908730A BR9908730A BR 9908730 A BR9908730 A BR 9908730A BR 9908730 A BR9908730 A BR 9908730A BR 9908730 A BR9908730 A BR 9908730A
Authority
BR
Brazil
Prior art keywords
acrylic acid
meth
insulation
processes
preparation
Prior art date
Application number
BR9908730-8A
Other languages
English (en)
Inventor
Ulrich Hammon
Holger Herbst
Gerhard Nestler
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 BR9908730A publication Critical patent/BR9908730A/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
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/50—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"PROCESSOS PARA O ISOLAMENTO RETIFICATIVO E PARA A PREPARAçãO DE áCIDO (MET)ACRìLICO" A invenção refere-se a um método para separar retificativamente ácido (met)acrílico a partir de uma mistura contendo, como constituintes principais, ácido (met)acrílico e um líquido orgânico com um ponto de ebulição mais alto do que ácido (met)acrílico. De acordo com este método, é adicionado um tensídeo.
BR9908730-8A 1998-03-13 1999-03-04 Processos para o isolamento retificativo e para a preparação de ácido (met) acrìlico BR9908730A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19810962A DE19810962A1 (de) 1998-03-13 1998-03-13 Verfahren der rektifikativen Abtrennung von (Meth)acrylsäure aus einem (Meth)acrylsäure und eine höher als (Meth)acrylsäure siedende organische Flüssigkeit als Hauptbestandteile enthaltenden Gemisch
PCT/EP1999/001414 WO1999047482A1 (de) 1998-03-13 1999-03-04 Rektifikation von (meth)acrylsäure unter zusatz eines tensids

Publications (1)

Publication Number Publication Date
BR9908730A true BR9908730A (pt) 2000-11-21

Family

ID=7860802

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9908730-8A BR9908730A (pt) 1998-03-13 1999-03-04 Processos para o isolamento retificativo e para a preparação de ácido (met) acrìlico

Country Status (8)

Country Link
US (1) US6806385B1 (pt)
EP (1) EP1062197B1 (pt)
JP (1) JP2002506842A (pt)
CN (1) CN1237569A (pt)
BR (1) BR9908730A (pt)
DE (2) DE19810962A1 (pt)
MY (1) MY129265A (pt)
WO (1) WO1999047482A1 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947868A1 (de) 1999-10-05 2001-04-12 Basf Ag Verfahren der chemischen und/oder physikalischen Behandlung von Gemischen, die wenigstens eine chemische Verbindung mit wenigstens einer ethylenisch ungesättigten Gruppe enthalten
US7128813B2 (en) * 2002-05-01 2006-10-31 Rohm And Haas Company Process for manufacturing high purity methacrylic acid
DE10237061A1 (de) 2002-08-09 2004-02-19 Basf Ag Verfahren zur Reinigung von Apparaten, in welchen(Meth)acrylsäure enthaltende organische Lösungsmittel behandelt und/oder erzeugt wurden
DE102006062258A1 (de) * 2006-12-22 2008-06-26 Basf Se Verfahren zum Übertragen von Wärme auf ein wenigstens ein (Meth)acrylmonomeres enthaltendes flüssiges Gemsich
DE102007004960A1 (de) 2007-01-26 2008-07-31 Basf Se Verfahren zur Herstellung von Acrylsäure
DE102007055086A1 (de) 2007-11-16 2009-05-20 Basf Se Verfahren zur Herstellung von Acrylsäure
EP2085376B1 (en) * 2008-01-30 2012-09-05 Evonik Röhm GmbH Process for preparation of high purity methacrylic acid
DE102008001435A1 (de) 2008-04-28 2009-10-29 Basf Se Verfahren zur Übertragung von Wärme auf eine monomere Acrylsäure, Acrylsäure-Michael-Oligomere und Acrylsäurepolymerisat gelöst enthaltende Flüssigkeit
WO2011000808A2 (de) 2009-07-01 2011-01-06 Basf Se Verfahren der abtrennung von acrylsäure aus dem produktgasgemisch einer heterogen katalysierten partiellen gasphasenoxidation wenigstens einer c3-vorläuferverbindung
DE102009027401A1 (de) 2009-07-01 2010-02-18 Basf Se Verfahren der Abtrennung von Acrylsäure aus dem Produktgasgemisch einer heterogen katalysierten partiellen Gasphasenoxidation wenigstens einer C3-Vorläuferverbindung
DE102010001228A1 (de) 2010-01-26 2011-02-17 Basf Se Verfahren der Abtrennung von Acrylsäure aus dem Produktgasgemisch einer heterogen katalysierten partiellen Gasphasenoxidation wenigstens einer C3-Vorläuferverbindung
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
US9776940B2 (en) 2015-08-07 2017-10-03 Basf Se Process for production of acrylic acid
US11447439B2 (en) 2018-07-26 2022-09-20 Basf Se Method for inhibiting unwanted radical polymerisation of acrylic acid present in a liquid phase P
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
CN117402032A (zh) * 2022-07-08 2024-01-16 埃科莱布美国股份有限公司 协同抗污剂组合物及其使用方法
CN117402033A (zh) * 2022-07-08 2024-01-16 埃科莱布美国股份有限公司 协同抗污剂组合物及其使用方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE786398A (fr) * 1971-07-21 1973-01-18 Basf Ag Procede de preparation de l'acide acrylique anhydre
DE2235326A1 (de) * 1972-07-19 1974-02-07 Degussa Verfahren zur reinigung 1,2-ungesaettigter carbonsaeuren
DE3213681A1 (de) * 1982-04-14 1983-10-27 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von (alpha)-alkylacroleinen
US4600795A (en) * 1982-04-19 1986-07-15 Ashland Oil, Inc. Preparation and recovery of methacrylic acid and its esters
CA1299193C (en) * 1986-07-17 1992-04-21 Gordon Gene Harkreader Anhydrous diluents for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid
DE4308087C2 (de) * 1993-03-13 1997-02-06 Basf Ag Verfahren zur Abtrennung von Acrylsäure aus den Reaktionsgasen der katalytischen Oxidation von Propylen und/oder Acrolein
DE4405059A1 (de) * 1994-02-17 1995-08-24 Basf Ag Multimetalloxidmassen
DE4431949A1 (de) * 1994-09-08 1995-03-16 Basf Ag Verfahren zur katalytischen Gasphasenoxidation von Acrolein zu Acrylsäure
DE4431957A1 (de) * 1994-09-08 1995-03-16 Basf Ag Verfahren zur katalytischen Gasphasenoxidation von Propen zu Acrolein
DE4436243A1 (de) * 1994-10-11 1996-04-18 Basf Ag Verfahren zur Abtrennung von (Meth)acrylsäure aus dem Reaktionsgasgemisch der katalytischen Gasphasenoxidation C¶3¶-/C¶4¶-Verbindungen
CN1035762C (zh) * 1994-11-23 1997-09-03 大庆石油学院 丙烷均相氧化脱氢及丙烯氧化制取丙烯酸的方法及其装置
US5961790A (en) * 1994-12-14 1999-10-05 Basf Aktiengesellschaft Separation of (meth) acrylic acid by rectification
DE19501326A1 (de) * 1995-01-18 1996-07-25 Basf Ag Verfahren der rektifikativen Abtrennung von (Meth)acrylsäure aus einem (Meth)acrylsäure als Hauptbestandteil und niedere Aldehyde als Nebenbestandteile enthaltenden Gemisch in einer aus Abtriebsteil und Verstärkerteil bestehenden Rektifiaktionskolonne
ATE219480T1 (de) * 1996-04-01 2002-07-15 Union Carbide Chem Plastic Verfahren zur oxidation von alkanen
FR2753445B1 (fr) * 1996-09-16 1998-10-30 Atochem Elf Sa Procede perfectionne de purification de l'acide acrylique
DE19734171A1 (de) * 1997-08-07 1999-02-11 Basf Ag Verfahren zur Stabilisierung von (Meth)acrylsäureestern gegen unerwünschte radikalische Polymerisation

Also Published As

Publication number Publication date
DE59909692D1 (de) 2004-07-15
MY129265A (en) 2007-03-30
WO1999047482A1 (de) 1999-09-23
EP1062197B1 (de) 2004-06-09
US6806385B1 (en) 2004-10-19
JP2002506842A (ja) 2002-03-05
CN1237569A (zh) 1999-12-08
DE19810962A1 (de) 1999-09-16
EP1062197A1 (de) 2000-12-27

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

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