| 发明名称 |
PROCESS FOR PREPARATION OF METHACRYLIC ACID |
| 摘要 |
PURPOSE:Methacrylic acid is prepared in high yield by the gas-phase oxidation of methacrolein in the presence of a catalyst containing five kinds of metal oxides as essential components. |
| 申请公布号 |
JPS5217419(A) |
申请公布日期 |
1977.02.09 |
| 申请号 |
JP19750091373 |
申请日期 |
1975.07.25 |
| 申请人 |
SUMITOMO CHEMICAL CO |
发明人 |
SHIRAISHI TATSUO;ICHIHASHI HIROSHI;SHIRAFUJI TAMIO |
| 分类号 |
C07C57/055;B01J27/00;B01J27/18;C07B61/00;C07C51/00;C07C57/04;C07C67/00 |
主分类号 |
C07C57/055 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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