BE728352A - - Google Patents

Info

Publication number
BE728352A
BE728352A BE728352DA BE728352A BE 728352 A BE728352 A BE 728352A BE 728352D A BE728352D A BE 728352DA BE 728352 A BE728352 A BE 728352A
Authority
BE
Belgium
Application number
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
Priority claimed from DE19681668362 external-priority patent/DE1668362C3/de
Application filed filed Critical
Publication of BE728352A publication Critical patent/BE728352A/xx

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
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
    • C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
    • 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
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/56—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption

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)
BE728352D 1968-02-17 1969-02-13 BE728352A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681668362 DE1668362C3 (de) 1968-02-17 1968-02-17 Verfahren zur Herstellung aliphatischer Acrylsäureester
DE1968K0064784 DE1668362B2 (de) 1968-02-17 1968-02-17 Verfahren zur herstellung aliphatischer acrylsaeureester

Publications (1)

Publication Number Publication Date
BE728352A true BE728352A (ja) 1969-08-13

Family

ID=25754338

Family Applications (1)

Application Number Title Priority Date Filing Date
BE728352D BE728352A (ja) 1968-02-17 1969-02-13

Country Status (6)

Country Link
US (1) US3658886A (ja)
BE (1) BE728352A (ja)
DE (1) DE1668362B2 (ja)
FR (1) FR2002126A1 (ja)
GB (1) GB1207089A (ja)
NL (1) NL6902273A (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT971368B (it) * 1972-11-30 1974-04-30 Sir Soc Italiana Resine Spa Procedimento per la produzione di acrilato di metile
NL7807420A (nl) * 1977-07-22 1979-01-24 Mitsubishi Chem Ind Werkwijze voor het afscheiden van methacrylzuur uit een mengsel, dat water, methanol, methacrylzuur en methylmethacrylaat bevat.
JPS6048496B2 (ja) * 1977-07-22 1985-10-28 東ソー株式会社 メタクリル酸の製造方法
GB2070601B (en) * 1980-03-05 1984-05-23 Asahi Chemical Ind Producing unsaturated carboxylic esters
CA2148292A1 (en) * 1994-05-05 1995-11-06 Barrie W. Jackson Liquid phase prparation of (meth)-acrylate from alpha-olefin
FR2736912B1 (fr) * 1995-07-18 1997-08-22 Atochem Elf Sa Procede de purification de l'acide acrylique obtenu par oxydation catalytique du propylene
JPH1112222A (ja) 1997-06-25 1999-01-19 Nippon Shokubai Co Ltd アクリル酸の回収方法
DE19814375A1 (de) 1998-03-31 1999-10-07 Basf Ag Verfahren zur Herstellung von Acrylsäure und Acrylsäureestern
DE10018848B4 (de) * 2000-04-14 2004-07-15 Johann Wintermantel Verwaltungs-Gmbh & Co. Kg Nistmauer
US6355817B1 (en) * 2000-07-15 2002-03-12 Exxonmobil Chemical Patents Inc. Optimized catalyst addition to enhance esterification catalyst performance
CN104203894B (zh) * 2012-05-03 2017-08-04 赢创罗姆有限公司 高纯度非黄变(甲基)丙烯酸的制备方法
WO2013163806A1 (en) 2012-05-03 2013-11-07 Evonik Industries Ag Process for preparation of highly pure, non-yellowing methacrylic acid

Also Published As

Publication number Publication date
GB1207089A (en) 1970-09-30
US3658886A (en) 1972-04-25
FR2002126A1 (ja) 1969-10-03
DE1668362A1 (de) 1971-08-05
NL6902273A (ja) 1969-08-19
DE1668362B2 (de) 1976-11-11

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