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BR9710231A - Process for the preparation of acrylic acid or methacrylic acid and use of a mixture of solvents - Google Patents

Process for the preparation of acrylic acid or methacrylic acid and use of a mixture of solvents

Info

Publication number
BR9710231A
BR9710231A BR9710231A BR9710231A BR9710231A BR 9710231 A BR9710231 A BR 9710231A BR 9710231 A BR9710231 A BR 9710231A BR 9710231 A BR9710231 A BR 9710231A BR 9710231 A BR9710231 A BR 9710231A
Authority
BR
Brazil
Prior art keywords
solvents
mixture
preparation
acrylic acid
methacrylic acid
Prior art date
Application number
BR9710231A
Other languages
Portuguese (pt)
Inventor
Otto Machhammer
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 BR9710231A publication Critical patent/BR9710231A/en

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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR9710231A 1996-07-10 1997-07-09 Process for the preparation of acrylic acid or methacrylic acid and use of a mixture of solvents BR9710231A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19627850A DE19627850A1 (en) 1996-07-10 1996-07-10 Process for the production of acrylic acid and methacrylic acid
PCT/EP1997/003629 WO1998001411A2 (en) 1996-07-10 1997-07-09 Method of separating (meth)acrylic acid

Publications (1)

Publication Number Publication Date
BR9710231A true BR9710231A (en) 1999-08-10

Family

ID=7799474

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9710231A BR9710231A (en) 1996-07-10 1997-07-09 Process for the preparation of acrylic acid or methacrylic acid and use of a mixture of solvents

Country Status (9)

Country Link
EP (1) EP0923523A2 (en)
JP (1) JP2000514076A (en)
KR (1) KR20000023679A (en)
CN (1) CN1227537A (en)
BR (1) BR9710231A (en)
CA (1) CA2259994A1 (en)
DE (1) DE19627850A1 (en)
ID (1) ID18425A (en)
WO (1) WO1998001411A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6180827B1 (en) * 1998-02-03 2001-01-30 Hfm International, Inc. Recovery of acrylic acid from process or waste water streams
FR2798382B1 (en) * 1999-09-14 2001-10-26 Atofina PROCESS FOR THE PURIFICATION OF ACRYLIC ACID OBTAINED BY OXIDATION OF PROPYLENE AND / OR ACROLEIN
US20030150705A1 (en) * 2002-01-08 2003-08-14 Deshpande Sanjeev D. Acrylic acid recovery utilizing ethyl acrylate and selected co-solvents
US20040104108A1 (en) 2002-12-03 2004-06-03 Mason Robert Michael High capacity purification of thermally unstable compounds
DE102009027401A1 (en) 2009-07-01 2010-02-18 Basf Se Separating acrylic acid comprises cooling product gas mixture of partial gas phase oxidation of three carbon precursor compound in cooler and providing cooled product gas mixture with (non)evaporated cooling liquid into absorption column
WO2011000808A2 (en) 2009-07-01 2011-01-06 Basf Se Method for separating acrylic acid from the product gas mixture of a heterogeneously catalyzed partial gas phase oxidation of at least one c3-precursor compound
DE102010001228A1 (en) 2010-01-26 2011-02-17 Basf Se Separating acrylic acid from a product gas mixture of heterogeneously catalyzed partial gas phase oxidation of a precursor compound to acrylic acid comprises cooling product gas mixture and adding cooled mixture into absorption column
DE102010042216A1 (en) 2010-10-08 2011-06-09 Basf Se Process for inhibiting the undesired radical polymerization of acrylic acid present in a liquid phase P.
WO2012124956A2 (en) 2011-03-11 2012-09-20 주식회사 엘지화학 Method and apparatus for continuously recovering (meth)acrylic acids
WO2014195157A1 (en) * 2013-06-03 2014-12-11 Evonik Degussa Gmbh Method for producing acrolein
DE102014017804A1 (en) 2014-12-02 2016-04-21 Basf Se Process for the production of acrylic acid
US9776940B2 (en) 2015-08-07 2017-10-03 Basf Se Process for production of acrylic acid
WO2017114831A1 (en) * 2015-12-29 2017-07-06 Shell Internationale Research Maatschappij B.V. Process for converting alkanes and/or alkenes to alkenes and carboxylic acids
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
CN115335354A (en) 2020-03-26 2022-11-11 巴斯夫欧洲公司 Process for inhibiting undesired free-radical polymerization of acrylic acid present in liquid phase P

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1568081A1 (en) * 1966-02-19 1970-02-05 Basf Ag Process for the separation of (meth) acrylic acid
NL8103517A (en) * 1981-07-24 1983-02-16 Badger Bv METHOD FOR SEPARATING CARBONIC ACIDS FROM MIXTURES WITH NON-ACIDS BY AN ABSORPTION STRIP TREATMENT.

Also Published As

Publication number Publication date
WO1998001411A2 (en) 1998-01-15
CN1227537A (en) 1999-09-01
CA2259994A1 (en) 1998-01-15
DE19627850A1 (en) 1998-01-15
EP0923523A2 (en) 1999-06-23
JP2000514076A (en) 2000-10-24
KR20000023679A (en) 2000-04-25
ID18425A (en) 1998-04-09
WO1998001411A3 (en) 1998-06-25

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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