NL143897B - Werkwijze om methacrylzuur en derivaten daarvan te bereiden. - Google Patents

Werkwijze om methacrylzuur en derivaten daarvan te bereiden.

Info

Publication number
NL143897B
NL143897B NL646410781A NL6410781A NL143897B NL 143897 B NL143897 B NL 143897B NL 646410781 A NL646410781 A NL 646410781A NL 6410781 A NL6410781 A NL 6410781A NL 143897 B NL143897 B NL 143897B
Authority
NL
Netherlands
Prior art keywords
derivatives
methacrylic acid
preparing methacrylic
preparing
acid
Prior art date
Application number
NL646410781A
Other languages
English (en)
Other versions
NL6410781A (nl
Original Assignee
Lonza 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 Lonza Ag filed Critical Lonza Ag
Publication of NL6410781A publication Critical patent/NL6410781A/xx
Publication of NL143897B publication Critical patent/NL143897B/nl

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
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/317—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
    • C07C67/327—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups by elimination of functional groups containing oxygen only in singly bound form

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
NL646410781A 1963-09-17 1964-09-16 Werkwijze om methacrylzuur en derivaten daarvan te bereiden. NL143897B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1146263A CH430691A (de) 1963-09-17 1963-09-17 Verfahren zur Herstellung von Methacrylverbindungen

Publications (2)

Publication Number Publication Date
NL6410781A NL6410781A (nl) 1965-03-18
NL143897B true NL143897B (nl) 1974-11-15

Family

ID=4373723

Family Applications (1)

Application Number Title Priority Date Filing Date
NL646410781A NL143897B (nl) 1963-09-17 1964-09-16 Werkwijze om methacrylzuur en derivaten daarvan te bereiden.

Country Status (8)

Country Link
US (1) US3487101A (nl)
BE (1) BE653162A (nl)
CH (1) CH430691A (nl)
DK (1) DK112943B (nl)
ES (1) ES304086A1 (nl)
GB (1) GB1028808A (nl)
NL (1) NL143897B (nl)
SE (1) SE325563B (nl)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039464A (en) * 1974-01-28 1977-08-02 Texaco Inc. Detergent builders and compositions containing the same
US4148605A (en) * 1976-10-07 1979-04-10 Mobil Oil Corporation Rust inhibitor and compositions thereof
US4529816A (en) * 1984-02-13 1985-07-16 E. I. Du Pont De Nemours And Company Process for producing alkyl methacrylates
US4617405A (en) * 1984-09-25 1986-10-14 A. E. Staley Manufacturing Company Preparation of alpha, beta-unsaturated carbonyl compounds
JP2884639B2 (ja) * 1989-11-28 1999-04-19 三菱瓦斯化学株式会社 不飽和カルボン酸エステルの製造法
US6545175B1 (en) 2000-10-19 2003-04-08 Battelle Memorial Institute Ester compounds and their use in forming acrylates
JP4048076B2 (ja) 2001-07-10 2008-02-13 株式会社日本触媒 ミカエル型付加物の分解方法
US6992209B2 (en) * 2002-12-09 2006-01-31 Battelle Memorial Institute Methods of forming alpha, beta-unsaturated acids and esters
JP5432852B2 (ja) * 2009-09-30 2014-03-05 ローム アンド ハース カンパニー メタクリル酸メチルの精製によって生じる流れから価値のある化合物を回収する方法
DE102011076642A1 (de) 2011-05-27 2012-11-29 Evonik Röhm Gmbh Verfahren zur Herstellung von Methacrylsäure
US9199910B2 (en) 2012-06-04 2015-12-01 Rohm And Haas Company Process for production of methacrylic acid esters
DE102013209821A1 (de) 2013-05-27 2014-11-27 Evonik Industries Ag Verfahren zur Dehydratisierung von alpha-substituierten Carbonsäuren
DE102014209650A1 (de) 2014-05-21 2015-11-26 Evonik Industries Ag Verfahren zur Durchführung von Eliminierungsreaktionen an alpha-beta-substituierten Carbonsäuren unter homogener Katalyse und Katalysatorrezyklierung
DE102014213016A1 (de) 2014-07-04 2016-01-07 Evonik Röhm Gmbh Dehydratisierung von alpha-substituierten Carbonsäuren in Gegenwart von Wasser bei hohen Drücken
EP3144291A1 (de) 2015-09-16 2017-03-22 Evonik Röhm GmbH Synthese von methacrylsäure aus auf methacrolein basierenden alkylmethacrylat
DE102016210285A1 (de) 2016-06-10 2017-12-14 Evonik Röhm Gmbh Verfahren zur Herstellung von Methacrylaten und Methacrylsäure
WO2022194590A1 (de) 2021-03-15 2022-09-22 Röhm Gmbh Neues verfahren zur kontinuierlichen herstellung von methacrylsäure durch katalytische hydrolyse von methylmethacrylat
WO2023169810A1 (de) 2022-03-11 2023-09-14 Röhm Gmbh Verfahren zur herstellung von alpha-hydroxyisobuttersäuremethylester und dessen anwendung in der elektronik-industrie

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE657377C (de) * 1933-08-03 1938-03-11 Ici Ltd Verfahren zum Herstellen von Estern oder Nitrilen von ungesaettigten aliphatischen ª‡-ª‰-Monocarbonsaeuren
US2183357A (en) * 1933-08-03 1939-12-12 Ici Ltd Manufacture of derivatives of unsaturated acids
US2265814A (en) * 1934-08-02 1941-12-09 Ici Ltd Manufacture of derivatives of unsaturated acids
GB531968A (en) * 1939-07-13 1941-01-15 Distillers Co Yeast Ltd Improvements in or relating to the manufacture of unsaturated acids and esters
US2356247A (en) * 1941-04-12 1944-08-22 American Cyanamid Co Process for producing unsaturated derivatives of alpha-hydroxyisobutyric acid esters
US2464364A (en) * 1943-03-11 1949-03-15 Atlantic Res Associates Inc Process of making alkyl acrylates
US2408177A (en) * 1943-05-04 1946-09-24 Claude R Wickard Improved process for the manufacture of methyl acrylate by the thermal decomposition of methyl alpha-acetoxypropionate
US2425523A (en) * 1943-11-25 1947-08-12 Edward M Filachione Phenyl and tolyl alpha-acetoxypropionate and process for their preparation
US2417749A (en) * 1943-12-23 1947-03-18 Eastman Kodak Co Preparation of olefinic nitriles by dehydration with acetic anhydride
US3022336A (en) * 1957-09-17 1962-02-20 Knapsack Ag Process for dehydrating alpha-hydroxyisobutyric acid esters
US3065260A (en) * 1961-08-15 1962-11-20 Boehringer Sohn Ingelheim Process for the preparation of acrylic acid esters

Also Published As

Publication number Publication date
GB1028808A (en) 1966-05-11
BE653162A (nl) 1965-01-18
SE325563B (nl) 1970-07-06
CH430691A (de) 1967-02-28
DK112943B (da) 1969-02-03
NL6410781A (nl) 1965-03-18
US3487101A (en) 1969-12-30
ES304086A1 (es) 1965-03-01

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: LONZA