发明名称 |
Process for regenerating catalyst for preparing unsaturated aldehyde and/or unsaturated carboxylic acid and process for preparing unsaturated aldehyde and/or unsaturated carboxylic acid |
摘要 |
A process for regenerating a catalyst consisting of a mixed oxide having molybdenum, bismuth and iron used for preparing an unsaturated aldehyde and/or an unsaturated carboxylic acid by catalytically oxidizing propylene, isobutylene and/or tert.-butanol with molecular oxygen in a gas phase, in which the catalyst is regenerated by thermally treating the deteriorated catalyst in an atmosphere of a gas containing molecular oxygen at a temperature of 200 to 500° C., and then thermally treating the catalyst in the presence of a reducing compound at a temperature of 200 to 500° C.
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申请公布号 |
US2008004173(A1) |
申请公布日期 |
2008.01.03 |
申请号 |
US20070819463 |
申请日期 |
2007.06.27 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
MIURA NAOKI;NAGAI KOICHI;SUYASU NORIAKI |
分类号 |
C07C51/21;B01J38/02;B01J38/04;B01J38/08;B01J38/10;C07C45/34;C07C45/37;C07C51/25 |
主分类号 |
C07C51/21 |
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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