发明授权
- 专利标题： Catalyst for purifying exhaust gases
- 专利标题（中）： 废气净化催化剂
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申请号： US82533申请日： 1987-08-07
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公开(公告)号： US4849398A公开(公告)日： 1989-07-18
- 发明人: Toshihiro Takada , Shinichi Matsumoto , Naoto Miyoshi
- 申请人： Toshihiro Takada , Shinichi Matsumoto , Naoto Miyoshi
- 专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha
- 优先权： JPX61-218765 19860917
- 主分类号： B01D53/94
- IPC分类号： B01D53/94 ; B01J23/54 ; B01J23/56 ; B01J23/58 ; B01J23/63 ; B01J37/02
摘要：
A catalyst for purifying exhaust gases contains: a catalyst support, a perovskite double oxide comprising at least one alkaline earth metal oxide, lathanum oxide and cerium oxide, carried on the catalyst support, and noble metal catalyst components carried on the catalyst support.The catalyst for purifying exhaust gases according to the present invention offers an improved durability and purifying ratios for carbon monoxide CO, hydrocarbons HC and nitrogen oxides NOx.
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