WO2010052079A3 - Verfahren zur reduzierung des wassergehalts in (meth)acrylsäure - Google Patents

Verfahren zur reduzierung des wassergehalts in (meth)acrylsäure Download PDF

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Publication number
WO2010052079A3
WO2010052079A3 PCT/EP2009/062885 EP2009062885W WO2010052079A3 WO 2010052079 A3 WO2010052079 A3 WO 2010052079A3 EP 2009062885 W EP2009062885 W EP 2009062885W WO 2010052079 A3 WO2010052079 A3 WO 2010052079A3
Authority
WO
WIPO (PCT)
Prior art keywords
meth
acrylic acid
reducing
water content
reagent
Prior art date
Application number
PCT/EP2009/062885
Other languages
English (en)
French (fr)
Other versions
WO2010052079A2 (de
Inventor
Gerhard Kölbl
Hermann Siegert
Original Assignee
Evonik Röhm Gmbh
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 Evonik Röhm Gmbh filed Critical Evonik Röhm Gmbh
Publication of WO2010052079A2 publication Critical patent/WO2010052079A2/de
Publication of WO2010052079A3 publication Critical patent/WO2010052079A3/de

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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
    • C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • 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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
    • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
    • C07C57/03—Monocarboxylic acids
    • C07C57/04—Acrylic acid; Methacrylic acid

Landscapes

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

Abstract

Die Erfindung beschreibt ein Verfahren zur Herstellung von wasserfreier (Meth)acrylsäure. Man kann die Entwässerung durch Behandlung mit adsorptiven Trocknungsmitteln, wie z.B. mit Molekularsieb und/oder durch die Reaktion mit einem Reagenz, wie z.B. Methacrylsäureanhydrid, durchführen.
PCT/EP2009/062885 2008-11-10 2009-10-05 Verfahren zur reduzierung des wassergehalts in (meth)acrylsäure WO2010052079A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810043609 DE102008043609A1 (de) 2008-11-10 2008-11-10 Verfahren zur Reduzierung des Wassergehalts in (Meth)acrylsäure
DE102008043609.7 2008-11-10

Publications (2)

Publication Number Publication Date
WO2010052079A2 WO2010052079A2 (de) 2010-05-14
WO2010052079A3 true WO2010052079A3 (de) 2010-11-18

Family

ID=42067482

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/062885 WO2010052079A2 (de) 2008-11-10 2009-10-05 Verfahren zur reduzierung des wassergehalts in (meth)acrylsäure

Country Status (3)

Country Link
DE (1) DE102008043609A1 (de)
TW (1) TW201033169A (de)
WO (1) WO2010052079A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013163806A1 (en) * 2012-05-03 2013-11-07 Evonik Industries Ag Process for preparation of highly pure, non-yellowing methacrylic acid
JP6037081B1 (ja) * 2015-08-07 2016-11-30 ダイキン工業株式会社 アクリル酸誘導体の精製方法
RU2723560C2 (ru) * 2015-08-07 2020-06-16 Дайкин Индастриз, Лтд. Способ удаления воды
US20240034709A1 (en) * 2021-03-15 2024-02-01 Röhm Gmbh Novel process for continuous preparation of methacrylic acid by catalytic hydrolysis of methyl methacrylate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414485A (en) * 1967-05-17 1968-12-03 Escambia Chem Corp Process for drying methacrylic acid by extraction and azeotropic distillation
US4142058A (en) * 1977-12-08 1979-02-27 Mitsubishi Rayon Co., Ltd. Method of separating and purifying methacrylic acid
US20040267050A1 (en) * 2003-06-30 2004-12-30 Decourcy Michael Stanley Process for manufacturing high purity methacrylic acid
US20050113605A1 (en) * 2003-11-26 2005-05-26 Abraham Benderly Process for manufacturing reduced water content (meth)acrylic acid
EP2085376A1 (de) * 2008-01-30 2009-08-05 Evonik Röhm GmbH Verfahren zur Herstellung hochreiner Methacrylsäure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985153A (en) 1974-08-28 1976-10-12 Tomco, Inc. Pressure compensating valve spool assembly for a hydraulic control valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414485A (en) * 1967-05-17 1968-12-03 Escambia Chem Corp Process for drying methacrylic acid by extraction and azeotropic distillation
US4142058A (en) * 1977-12-08 1979-02-27 Mitsubishi Rayon Co., Ltd. Method of separating and purifying methacrylic acid
US20040267050A1 (en) * 2003-06-30 2004-12-30 Decourcy Michael Stanley Process for manufacturing high purity methacrylic acid
US20050113605A1 (en) * 2003-11-26 2005-05-26 Abraham Benderly Process for manufacturing reduced water content (meth)acrylic acid
EP2085376A1 (de) * 2008-01-30 2009-08-05 Evonik Röhm GmbH Verfahren zur Herstellung hochreiner Methacrylsäure

Also Published As

Publication number Publication date
TW201033169A (en) 2010-09-16
DE102008043609A1 (de) 2010-05-12
WO2010052079A2 (de) 2010-05-14

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