JPS6450843A - Production of methacrylic acid ester - Google Patents
Production of methacrylic acid esterInfo
- Publication number
- JPS6450843A JPS6450843A JP62207799A JP20779987A JPS6450843A JP S6450843 A JPS6450843 A JP S6450843A JP 62207799 A JP62207799 A JP 62207799A JP 20779987 A JP20779987 A JP 20779987A JP S6450843 A JPS6450843 A JP S6450843A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- methacrylic acid
- alcohol
- catalyst
- tantalic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE:To obtain the titled compound useful as a raw material for synthetic polymers, coatings, etc., in high yield, by reacting methacrylic acid with an alcohol in the vapor phase in the presence of tantalic acid. CONSTITUTION:Methacrylic acid is reacted with a 1-8C alcohol in the presence of tantalic acid catalyst at 120-300 deg.C under atmospheric pressure or several hundreds of mmHg-10kg/cm<2>G pressure in an inert gas atmosphere, such as nitrogen or helium, to afford the aimed substance. The tantalic acid is obtained by hydrolyzing a halide (e.g. TaCl5) of pentavalent tantalum to provide tantalum hydroxide which is a precursor, washing the resultant tantalum hydroxide with an acid and/or water and heat-treating the washed substance. The methacrylic acid and alcohol are used at 1:50-5 molar ratio. Since the catalyst has high activity, this reaction is carried out at a low temperature with a long catalyst life and stable operation can be performed for a long period. Since the selectivity is high, steps of separating and recovering the ester can be simplified.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62207799A JPH0733351B2 (en) | 1987-08-21 | 1987-08-21 | Method for producing methacrylic acid ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62207799A JPH0733351B2 (en) | 1987-08-21 | 1987-08-21 | Method for producing methacrylic acid ester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6450843A true JPS6450843A (en) | 1989-02-27 |
JPH0733351B2 JPH0733351B2 (en) | 1995-04-12 |
Family
ID=16545685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62207799A Expired - Fee Related JPH0733351B2 (en) | 1987-08-21 | 1987-08-21 | Method for producing methacrylic acid ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0733351B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998025876A1 (en) * | 1996-12-12 | 1998-06-18 | Sasol Technology (Proprietary) Limited | Production of organic carboxylic acid esters |
GB2396612A (en) * | 2002-12-19 | 2004-06-30 | Procter & Gamble | Preparation of wax esters by esterifying acids with alcohols below atmospheric pressure |
-
1987
- 1987-08-21 JP JP62207799A patent/JPH0733351B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998025876A1 (en) * | 1996-12-12 | 1998-06-18 | Sasol Technology (Proprietary) Limited | Production of organic carboxylic acid esters |
GB2396612A (en) * | 2002-12-19 | 2004-06-30 | Procter & Gamble | Preparation of wax esters by esterifying acids with alcohols below atmospheric pressure |
Also Published As
Publication number | Publication date |
---|---|
JPH0733351B2 (en) | 1995-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |