发明名称 |
Method for reactivating catalyst for methacrylic acid preparation |
摘要 |
A process of reactivating a deteriorated catalyst containing phosphorus and molybdenum suitable for use in the production of methacrylic acid by vapor-phase oxidation of methacrolein or vapor-phase oxidative dehydrogenation of isobutyric acid which process comprises treating the catalyst with a gas containing a nitrogen-containing heterocyclic compound. |
申请公布号 |
EP1192992(A1) |
申请公布日期 |
2002.04.03 |
申请号 |
EP20010308130 |
申请日期 |
2001.09.25 |
申请人 |
NIPPON SHOKUBAI CO., LTD |
发明人 |
KASUGA, HIROTO;SHIRAISHI, EIICHI |
分类号 |
B01J23/90;B01J27/199;B01J27/28;B01J38/04;B01J38/06;C07B61/00;C07C51/235;C07C51/377;C07C57/05;C07C57/055;C07C57/065 |
主分类号 |
B01J23/90 |
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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