BR9711232A - Processo para separa-Æo por destila-Æo de cido metacrilico puro a partir de misturas que compreendem cido metacrillico e dimeros e oligÄmeros de cido metacrilico - Google Patents

Processo para separa-Æo por destila-Æo de cido metacrilico puro a partir de misturas que compreendem cido metacrillico e dimeros e oligÄmeros de cido metacrilico

Info

Publication number
BR9711232A
BR9711232A BR9711232A BR9711232A BR9711232A BR 9711232 A BR9711232 A BR 9711232A BR 9711232 A BR9711232 A BR 9711232A BR 9711232 A BR9711232 A BR 9711232A BR 9711232 A BR9711232 A BR 9711232A
Authority
BR
Brazil
Prior art keywords
methacrylic acid
oligomers
distillation
mixtures
pure
Prior art date
Application number
BR9711232A
Other languages
English (en)
Inventor
Ruprecht Kroker
Manfred Wiedemann
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 BR9711232A publication Critical patent/BR9711232A/pt

Links

Classifications

    • 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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/22—Accessories

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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
BR9711232A 1996-08-27 1997-08-26 Processo para separa-Æo por destila-Æo de cido metacrilico puro a partir de misturas que compreendem cido metacrillico e dimeros e oligÄmeros de cido metacrilico BR9711232A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19634614A DE19634614A1 (de) 1996-08-27 1996-08-27 Verfahren zur destillativen Abtrennung von Rein-(Meth)acrylsäure aus Gemischen, die im wesentlichen frei sind von Komponenten, deren Siedepunkt niedriger als der der (Meth)acrylsäure ist
PCT/EP1997/004639 WO1998008798A1 (de) 1996-08-27 1997-08-26 Verfahren zur destillativen abtrennung von rein-(meth)acrylsäure aus gemischen

Publications (1)

Publication Number Publication Date
BR9711232A true BR9711232A (pt) 1999-08-17

Family

ID=7803824

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9711232A BR9711232A (pt) 1996-08-27 1997-08-26 Processo para separa-Æo por destila-Æo de cido metacrilico puro a partir de misturas que compreendem cido metacrillico e dimeros e oligÄmeros de cido metacrilico

Country Status (12)

Country Link
US (1) US6350352B2 (pt)
EP (1) EP0931049B1 (pt)
JP (1) JP2001501175A (pt)
KR (1) KR20000035899A (pt)
CN (1) CN1228760A (pt)
BR (1) BR9711232A (pt)
CA (1) CA2263949A1 (pt)
DE (2) DE19634614A1 (pt)
ID (1) ID19000A (pt)
MY (1) MY132517A (pt)
TW (1) TW418189B (pt)
WO (1) WO1998008798A1 (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4143218B2 (ja) * 1999-04-23 2008-09-03 株式会社日本触媒 薄膜式蒸発装置における重合防止方法および薄膜式蒸発装置
DE10138150A1 (de) 2001-08-03 2003-02-13 Basf Ag Verfahren zur Herstellung wasserabsorbierender Harze
US6770219B2 (en) * 2002-10-15 2004-08-03 Nalco Energy Services Composition and method for preventing fouling in (meth)acrylic acid processes
US20040104108A1 (en) 2002-12-03 2004-06-03 Mason Robert Michael High capacity purification of thermally unstable compounds
WO2005007609A1 (de) 2003-07-11 2005-01-27 Basf Aktiengesellschaft Thermisches trennverfahren zur abtrennung wenigstens eines (meth)acrylmonomere angereichert enthaltenden stoffstroms
TWI337996B (en) * 2003-10-09 2011-03-01 Basf Ag Rectificative separation of an acrylic acid-containing liquid
DE10347664A1 (de) * 2003-10-09 2004-12-02 Basf Ag Verfahren der rektifikativen Auftrennung einer Acrylsäure enthaltenden Flüssigkeit
DE102005019911A1 (de) 2005-04-27 2006-11-02 Basf Ag Verfahren der rektifikativen Auftrennung einer Acrylsäure und/oder Methacrylsäure enthaltenden Flüssigkeit
KR101985147B1 (ko) * 2018-09-04 2019-06-03 장일순 폐아크릴 재생공정에서 나오는 폐유로부터 아크릴 원료를 획득하는 추출방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442766A (en) * 1965-07-19 1969-05-06 Allied Chem Distillation under vacuum with liquid protective seal
DE2449780C3 (de) * 1974-10-19 1987-01-22 Basf Ag, 6700 Ludwigshafen Verfahren zum Abtrennen schwer- oder nichtflüchtiger Nebenprodukte der Propylen- und/oder Acroleinoxidation von den für die Absorbtion der Acrylsäure aus den Reaktionsgasen verwendeten Lösungsmitteln
IT1096248B (it) * 1978-05-26 1985-08-26 Prochemix Srl Apparecchio di evaporazione a strato sottile
US4417951A (en) * 1980-11-03 1983-11-29 Jovo Stanisic Distiller and evaporator for sea water
US4877487A (en) * 1986-04-08 1989-10-31 Miller Ray R Belt and drum-type press with supplemental nip loading means
DE4207266B4 (de) * 1991-04-11 2004-02-19 Feres, Vaclav, Las Cruces Dünnschichtverdampfer
DE19539295A1 (de) * 1995-10-23 1997-04-24 Basf Ag Verfahren zur kontinuierlichen destillativen Auftrennung von flüssigen Gemischen, die als Hauptbestandteil (Meth)acrylsäure enthalten

Also Published As

Publication number Publication date
US20010050216A1 (en) 2001-12-13
ID19000A (id) 1998-05-28
EP0931049A1 (de) 1999-07-28
EP0931049B1 (de) 2002-07-10
WO1998008798A1 (de) 1998-03-05
DE19634614A1 (de) 1998-03-05
JP2001501175A (ja) 2001-01-30
CN1228760A (zh) 1999-09-15
US6350352B2 (en) 2002-02-26
KR20000035899A (ko) 2000-06-26
DE59707693D1 (de) 2002-08-14
CA2263949A1 (en) 1998-03-05
MY132517A (en) 2007-10-31
TW418189B (en) 2001-01-11

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Legal Events

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