发明名称 |
Exhaust gas purification catalyst for suppressing hydrogen sulfide evolution, and process for production thereof. |
摘要 |
<p>An exhaust gas purification catalyst for removing carbon monoxide, hydrocarbons and nitrogen oxides from an exhaust gas and suppressing the evolution of hydrogen sulfide comprises a monolithic support and deposited thereon, at least one platinum-group element, active alumina, cerium oxide and germanium oxide. The catalyst is produced by a process which comprises (a) a step of preparing active alumina having a compound of at least one platinum-group element deposited thereon, (b) a step of preparing a slurry comprising the active alumina obtained in step (a), cerium oxide, and germanium oxide, and (c) a step of depositing the slurry on a monolithic support and calcining the support. c</p> |
申请公布号 |
EP0377468(A1) |
申请公布日期 |
1990.07.11 |
申请号 |
EP19900100220 |
申请日期 |
1990.01.05 |
申请人 |
N. E. CHEMCAT CORPORATION |
发明人 |
YAMADA, TEIJI;FUNABIKI, MASAKI;KAYANO, KUNIHIDE |
分类号 |
B01D53/94;B01J23/62;B01J23/63 |
主分类号 |
B01D53/94 |
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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