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
Links
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
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
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 (de) | 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 (de) |
| BE (1) | BE653162A (de) |
| CH (1) | CH430691A (de) |
| DK (1) | DK112943B (de) |
| ES (1) | ES304086A1 (de) |
| GB (1) | GB1028808A (de) |
| NL (1) | NL143897B (de) |
| SE (1) | SE325563B (de) |
Families Citing this family (18)
| 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 |
| US20240034709A1 (en) | 2021-03-15 | 2024-02-01 | Röhm Gmbh | Novel process for continuous preparation of methacrylic acid by catalytic hydrolysis of methyl methacrylate |
| 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)
| 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 |
-
1963
- 1963-09-17 CH CH1146263A patent/CH430691A/de unknown
-
1964
- 1964-09-10 GB GB37114/64A patent/GB1028808A/en not_active Expired
- 1964-09-11 DK DK449664AA patent/DK112943B/da unknown
- 1964-09-16 NL NL646410781A patent/NL143897B/xx unknown
- 1964-09-16 ES ES0304086A patent/ES304086A1/es not_active Expired
- 1964-09-16 BE BE653162A patent/BE653162A/xx unknown
- 1964-09-16 SE SE11117/64A patent/SE325563B/xx unknown
-
1968
- 1968-05-06 US US727080A patent/US3487101A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DK112943B (da) | 1969-02-03 |
| GB1028808A (en) | 1966-05-11 |
| NL6410781A (de) | 1965-03-18 |
| US3487101A (en) | 1969-12-30 |
| BE653162A (de) | 1965-01-18 |
| SE325563B (de) | 1970-07-06 |
| ES304086A1 (es) | 1965-03-01 |
| CH430691A (de) | 1967-02-28 |
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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 |