JPS5212126A - Process for preparation of methacrylic acid - Google Patents
Process for preparation of methacrylic acidInfo
- Publication number
- JPS5212126A JPS5212126A JP8676675A JP8676675A JPS5212126A JP S5212126 A JPS5212126 A JP S5212126A JP 8676675 A JP8676675 A JP 8676675A JP 8676675 A JP8676675 A JP 8676675A JP S5212126 A JPS5212126 A JP S5212126A
- Authority
- JP
- Japan
- Prior art keywords
- methacrylic acid
- preparation
- isobutyric acid
- acid
- catalyst
- 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.)
- Pending
Links
Abstract
PURPOSE: Methacrylic acid is prepared in high yield and high selectivity by the oxidative dehydrogenation of isobutyric acid with an oxygen-containing gas in the presence of a catalyst with intermittent addition of the isobutyric acid.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8676675A JPS5212126A (en) | 1975-07-16 | 1975-07-16 | Process for preparation of methacrylic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8676675A JPS5212126A (en) | 1975-07-16 | 1975-07-16 | Process for preparation of methacrylic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5212126A true JPS5212126A (en) | 1977-01-29 |
Family
ID=13895859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8676675A Pending JPS5212126A (en) | 1975-07-16 | 1975-07-16 | Process for preparation of methacrylic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5212126A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5411588A (en) * | 1977-06-24 | 1979-01-27 | De Beers Ind Diamond | Method of combining abraisive compacts |
JPS5545783U (en) * | 1978-09-21 | 1980-03-25 | ||
JPS55103101U (en) * | 1979-01-13 | 1980-07-18 | ||
JPS55126580A (en) * | 1978-12-29 | 1980-09-30 | Gen Electric | Oneebody composite body of polycrystal diamond and*or cubic boron nitride phase and substrate phase |
JPS5641874A (en) * | 1979-08-23 | 1981-04-18 | Gen Electric | Diamond compressed body and manufacture thereof |
JPS5739106A (en) * | 1980-08-14 | 1982-03-04 | Hiroshi Ishizuka | Production of diamond ultrahard alloy composite |
JPS57175775A (en) * | 1981-04-20 | 1982-10-28 | Showa Denko Kk | Diamond sintered body |
US4391989A (en) * | 1981-11-09 | 1983-07-05 | Ashland Oil, Inc. | Oxydehydrogenation of isobutyric acid and its lower alkyl esters |
JPS6060981A (en) * | 1983-09-08 | 1985-04-08 | 株式会社石塚研究所 | Manufacture of diamond sintered body |
JPS60121251A (en) * | 1983-12-02 | 1985-06-28 | Toshiba Tungaloy Co Ltd | Diamond sintered body for tool and its production |
JPS6134108A (en) * | 1984-07-26 | 1986-02-18 | Daijietsuto Kogyo Kk | High-hardness composite sintered body for brazing tool |
JPS6191344A (en) * | 1984-10-11 | 1986-05-09 | Toshiba Tungaloy Co Ltd | High hardness sintered body |
JPS6192823A (en) * | 1984-03-27 | 1986-05-10 | Toshiba Mach Co Ltd | Resisting member for molding machine |
JPH0261507U (en) * | 1988-10-25 | 1990-05-08 | ||
JPH02274405A (en) * | 1989-04-14 | 1990-11-08 | Sumitomo Electric Ind Ltd | Polycrystal diamond tool for cutting |
JPH03277412A (en) * | 1990-02-07 | 1991-12-09 | G N Tool Kk | Cutting tool having twisted blade and manufacture thereof |
US5366522A (en) * | 1991-11-07 | 1994-11-22 | Sumitomo Electric Industries, Ltd. | Polycrystalline diamond cutting tool and method of manufacturing the same |
US5435815A (en) * | 1992-06-30 | 1995-07-25 | Sumitomo Electric Industries, Ltd. | Cutting tool employing vapor-deposited polycrystalline diamond for cutting edge and method of manufacturing the same |
EP0714695A2 (en) | 1994-11-30 | 1996-06-05 | Sumitomo Electric Industries, Ltd. | Diamond sintered body having high strength and high wear-resistance and manufacturing method thereof |
US5584045A (en) * | 1990-11-22 | 1996-12-10 | Sumitomo Electric Industries, Ltd. | Polycrystalline diamond tool and method for producing same |
US6261329B1 (en) | 1998-02-26 | 2001-07-17 | Sumitomo Electric Industries, Ltd. | Diamond sintered body having high strength and high wear resistance, and tool including the same |
US6528159B1 (en) | 1998-03-02 | 2003-03-04 | Sumitomo Electric Industries, Ltd. | Sintered diamond tool and method for manufacturing the same |
US7553350B2 (en) | 2005-07-26 | 2009-06-30 | Sumitomo Electric Industries, Ltd. | High-strength and highly-wear-resistant sintered diamond object and manufacturing method of the same |
US7985470B2 (en) | 2007-02-02 | 2011-07-26 | Sumitomo Electric Hardmetal Corp. | Diamond sintered compact |
-
1975
- 1975-07-16 JP JP8676675A patent/JPS5212126A/en active Pending
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6159270B2 (en) * | 1977-06-24 | 1986-12-15 | De Biazu Indasutoriaru Daiamondo Deibijon Ltd | |
JPS5411588A (en) * | 1977-06-24 | 1979-01-27 | De Beers Ind Diamond | Method of combining abraisive compacts |
JPS5545783U (en) * | 1978-09-21 | 1980-03-25 | ||
JPS55126580A (en) * | 1978-12-29 | 1980-09-30 | Gen Electric | Oneebody composite body of polycrystal diamond and*or cubic boron nitride phase and substrate phase |
JPS6313952B2 (en) * | 1978-12-29 | 1988-03-28 | Gen Electric | |
JPS55103101U (en) * | 1979-01-13 | 1980-07-18 | ||
JPS5641874A (en) * | 1979-08-23 | 1981-04-18 | Gen Electric | Diamond compressed body and manufacture thereof |
JPH0260632B2 (en) * | 1979-08-23 | 1990-12-17 | Gen Electric | |
JPS5739106A (en) * | 1980-08-14 | 1982-03-04 | Hiroshi Ishizuka | Production of diamond ultrahard alloy composite |
JPH0137444B2 (en) * | 1980-08-14 | 1989-08-07 | Hiroshi Ishizuka | |
JPS57175775A (en) * | 1981-04-20 | 1982-10-28 | Showa Denko Kk | Diamond sintered body |
JPH0211547B2 (en) * | 1981-04-20 | 1990-03-14 | Showa Denko Kk | |
US4391989A (en) * | 1981-11-09 | 1983-07-05 | Ashland Oil, Inc. | Oxydehydrogenation of isobutyric acid and its lower alkyl esters |
JPS6060981A (en) * | 1983-09-08 | 1985-04-08 | 株式会社石塚研究所 | Manufacture of diamond sintered body |
JPH0450271B2 (en) * | 1983-09-08 | 1992-08-13 | Ishizuka Kenkyusho | |
JPS60121251A (en) * | 1983-12-02 | 1985-06-28 | Toshiba Tungaloy Co Ltd | Diamond sintered body for tool and its production |
JPS6192823A (en) * | 1984-03-27 | 1986-05-10 | Toshiba Mach Co Ltd | Resisting member for molding machine |
JPS6134108A (en) * | 1984-07-26 | 1986-02-18 | Daijietsuto Kogyo Kk | High-hardness composite sintered body for brazing tool |
JPS6191344A (en) * | 1984-10-11 | 1986-05-09 | Toshiba Tungaloy Co Ltd | High hardness sintered body |
JPH0261507U (en) * | 1988-10-25 | 1990-05-08 | ||
JPH02274405A (en) * | 1989-04-14 | 1990-11-08 | Sumitomo Electric Ind Ltd | Polycrystal diamond tool for cutting |
JPH03277412A (en) * | 1990-02-07 | 1991-12-09 | G N Tool Kk | Cutting tool having twisted blade and manufacture thereof |
US5584045A (en) * | 1990-11-22 | 1996-12-10 | Sumitomo Electric Industries, Ltd. | Polycrystalline diamond tool and method for producing same |
US5366522A (en) * | 1991-11-07 | 1994-11-22 | Sumitomo Electric Industries, Ltd. | Polycrystalline diamond cutting tool and method of manufacturing the same |
US5435815A (en) * | 1992-06-30 | 1995-07-25 | Sumitomo Electric Industries, Ltd. | Cutting tool employing vapor-deposited polycrystalline diamond for cutting edge and method of manufacturing the same |
EP0714695A2 (en) | 1994-11-30 | 1996-06-05 | Sumitomo Electric Industries, Ltd. | Diamond sintered body having high strength and high wear-resistance and manufacturing method thereof |
US5759216A (en) * | 1994-11-30 | 1998-06-02 | Sumitomo Electric Industries, Ltd. | Diamond sintered body having high strength and high wear-resistance and manufacturing method thereof |
US6261329B1 (en) | 1998-02-26 | 2001-07-17 | Sumitomo Electric Industries, Ltd. | Diamond sintered body having high strength and high wear resistance, and tool including the same |
US6528159B1 (en) | 1998-03-02 | 2003-03-04 | Sumitomo Electric Industries, Ltd. | Sintered diamond tool and method for manufacturing the same |
US7553350B2 (en) | 2005-07-26 | 2009-06-30 | Sumitomo Electric Industries, Ltd. | High-strength and highly-wear-resistant sintered diamond object and manufacturing method of the same |
US7985470B2 (en) | 2007-02-02 | 2011-07-26 | Sumitomo Electric Hardmetal Corp. | Diamond sintered compact |
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