发明名称 |
Catalyst for production of methacrylic acid and method for production of methacrylic acid by the use of the catalyst. |
摘要 |
<p>A catalyst for the production of methacrylic acid by the vapor-phase catalytic oxidation and/or oxidative dehydrogenation of at least one compound selected from the group consisting of methacrolein, isobutyl aldehyde, and isobutyric acid and a method for the production of methacrylic acid by the use of this catalyst are provided. The catalyst of this invention comprises (A) a composite oxide having Mo and P as essential components and used for the production of methacrylic acid by vapor-phase catalytic oxidation and/or oxidative dehydrogenation of methacrolein, isobutyl aldehyde, and/or isobutyric acid and (B) a solid acid having acid strength (Ho) of not more than -11.93. Since this catalyst excels in catalytic activity and service life, it allows methacrylic acid to be produced stably at a high yield for a long time.</p> |
申请公布号 |
EP0685261(A2) |
申请公布日期 |
1995.12.06 |
申请号 |
EP19950108271 |
申请日期 |
1995.05.31 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
KURIMOTO, IKUO;ONODERA, HIDEO;AOKI, YUKIO |
分类号 |
B01J27/053;B01J27/199;B01J35/00;C07C57/055;(IPC1-7):B01J27/199;C07C57/04;C07C51/25;C07C51/377 |
主分类号 |
B01J27/053 |
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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