发明名称 |
Method for production of methacrylic acid. |
摘要 |
<p>A method for the production of methacrylic acid comprising the steps of simultaneously introducing at least one compound selected from the group consisting of methacrolein and isobutyl aldehyde and a molecular oxygen-containing gas into a heat exchanger type shell-and-tube reaction vessel packed with an oxide catalyst containing molybdenum and phosphorus thereby effecting catalytic vapor-phase oxidation reaction and/or catalytic vapor-phase oxidative dehydrogenation reaction and consequently forming methacrylic acid, which method is characterized by having the empty space in the gas outlet part of said reaction vessel with a solid filler.</p> |
申请公布号 |
EP0580901(A1) |
申请公布日期 |
1994.02.02 |
申请号 |
EP19920306710 |
申请日期 |
1992.07.22 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
TAZAKI, HIROYUKI;KURIMOTO, IKUO;UHARA, HIROYUKI;AOKI, YUKIO |
分类号 |
B01J23/88;B01J27/188;C07B61/00;C07C51/235;C07C51/25;C07C57/05;C07C57/055;(IPC1-7):C07C51/235;C07C57/04 |
主分类号 |
B01J23/88 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|